LDPI, Inc. LDPI, Inc. http://www.ldpi-inc.com Thu, 21 Sep 2017 19:56:03 -0500 Thu, 21 Sep 2017 19:56:03 -0500 en FABTECH 2017 http://www.ldpi-inc.com/about/trade-shows/FABTECH-2017 Mon, 06 Nov 2017 00:00:00 -0600 <p>FABTECH brings a wealth of innovation and technology solutions to Chicago November 6-9, 2017. More than 50,000 attendees and over 1,700 exhibiting companies are expected to gather once again to celebrate metal manufacturing at its best. The event also provides educational sessions and expert-led presentations covering the latest trends and technology in the metal forming, fabricating, welding and finishing industries.</p> <p><strong>BOOTH #: A6336<br /></strong></p> <p><a href="http://www.fabtechexpo.com/" target="_blank">http://www.fabtechexpo.com/</a></p> <h3><strong><a href="https://www.xpressreg.net/register/FABT1117/landing.asp?sc=&aban=&hkey=&iq=&vip=&tm=" target="_blank">CLICK HERE TO REGISTER<br /></a></strong></h3> <p>Use code FBCCAI for FREE admission to the Expo.<br />Use code FINISHING30 for 30% off technical conference.</p> http://www.ldpi-inc.com/about/trade-shows/FABTECH-2017 SEMA 2017 http://www.ldpi-inc.com/about/trade-shows/SEMA-2017 Tue, 31 Oct 2017 00:00:00 -0500 <p>The SEMA Show takes place October 31 - November 3, 2017 at the Las Vegas Convention Center located at 3150 Paradise Road, Las Vegas, NV 89109.<br />The SEMA Show is the premier automotive specialty products trade event in the world. It draws the industry&rsquo;s brightest minds and hottest products to one place, the Las Vegas Convention Center. In addition, the SEMA Show provides attendees with educational seminars, product demonstrations, special events, networking opportunities and more.</p> <p><strong>Note: The SEMA Show is not open to the general public.</strong></p> <p><span>BOOTH #: 11469<br /> <br /> <a href="http://www.semashow.com/" target="_blank">http://www.semashow.com</a></span></p> http://www.ldpi-inc.com/about/trade-shows/SEMA-2017 For Immediate Release - Wayne Nash http://www.ldpi-inc.com/about/news/For-Immediate-Release-Wayne-Nash Thu, 25 May 2017 00:00:00 -0500 <p><strong>For Immediate Release</strong><br /><strong>May 25, 2017</strong></p> <p><strong>Wayne Nash &ndash; Rest in Peace my friend</strong><br />It is with a heavy heart that we inform you of the passing of Wayne Nash. Wayne passed away on Wednesday at his home in the Minneapolis area. Wayne was a valued member of our sales team and the Plank Family of employees. He began working for us in 2003 and created from scratch our Manufacturers Representative Network as it exists today. He was the face and voice of LDPI to the Industrial Marketplace for the past 14 years. As many of you know Wayne did attend Light Fair this year, but suffered a heart attack while leaving the show on Tuesday evening. He was able to travel back to his home and was in the process of recovering.</p> <p>His passing has deeply affected us all. Wayne had a unique presence and was a colorful, kind, giant of a man. His knowledge of Hazardous Lighting and countless stories about his travels and the people and situations he encountered will bring a smile to our hearts for a very long time.</p> <p>Wayne is survived by his wife Kim, and children John, and Tiffany.</p> <p>Condolences may be sent to LDPI, C/O Wayne Nash, 4404 Anderson Dr., Eau Claire, WI 54703</p> <p>On behalf of Kim and the Plank Family we appreciate your thoughts and prayers to the family at this most difficult of times.</p> http://www.ldpi-inc.com/about/news/For-Immediate-Release-Wayne-Nash NEW - LE121 LED General Industrial Fixture http://www.ldpi-inc.com/about/press-releases/NEW-LE121-LED-General-Industrial-Fixture Mon, 31 Aug 2015 00:00:00 -0500 <p><strong>Eau Claire, WI &ndash; August 31, 2015 -</strong> LDPI, Inc., a leading manufacturer of LED hazardous location light fixtures, announces the immediate availability of our new <strong>LE121</strong> Fixture. This general industrial fixture is available in 4ft, 6ft or 8ft lengths and can be manufactured with 2, 3 or 4 rows of LEDs. Twenty Seven different lumen packages are available ranging from 13,710 to 74,800 lumens per fixture. Energy efficient LED arrays can deliver energy savings of up to 40% as compared to fluorescent technology.</p> <p>Delivering up to 74,800 lumens, this fixture packs a punch and is perfect for high bay industrial lighting, warehouse, task and assembly areas.</p> <p>UL listed to US and Canadian standards, this fixture can operate effectively in ambient temperatures up to 50C. Optional emergency driver backup, DALI controllable, Occupancy Sensor, color options, wire guards and cord options give you the flexibility needed for all types of projects.</p> <p>The <strong>LE121</strong> is ready to illuminate general industrial, warehouse, task and assembly areas. It&rsquo;s highly customizable to provide the desired lumen output, color temperature and directional light to suit any general application.</p> <p>The <strong>LE121</strong> is just one part of a complete range of general purpose, hazardous location and explosion proof fixtures and control solutions offered by the experts at LDPI.</p> <p></p> <p><a href="http://www.ldpi-inc.com/products/le121-series-general-industrial-led-lighting">Product Information</a></p> <p></p> <p><strong>For more information:</strong><br />Call: 800-854-0021<br />Visit: www.ldpi-inc.com<br />Contact us via email: sales@ldpi-inc.com</p> <p><strong>About LDPI</strong></p> <p>LDPI has been designing and manufacturing high performance LED and Fluorescent industrial and commercial lighting solutions for demanding applications for over 30 years. Our products are used in Industrial and Commercial locations for task and inspection, general and security lighting. We manufacture specialized and standard fixtures for use in wet, harsh, hazardous, and demanding applications.</p> http://www.ldpi-inc.com/about/press-releases/NEW-LE121-LED-General-Industrial-Fixture NEW - LEHL LED Hazardous Location Fixture http://www.ldpi-inc.com/about/press-releases/NEW-LEHL-LED-Hazardous-Location-Fixture Mon, 31 Aug 2015 00:00:00 -0500 <p><strong>Eau Claire, WI &ndash; August 31, 2015 -</strong> LDPI, Inc., a leading manufacturer of LED hazardous location light fixtures, announces the immediate availability of our new <strong>LEHL </strong>Hazardous Location Fixture. This Class I, D2 Class II, D2 approved fixture delivers 105 lumens per watt and is available in 4 lumen packages.</p> <p>This hazardous rated fixture can be ceiling, wall, pendant and stanchion mounted with optional mounting hardware. With lumen packages from 8,400 to 17,000 lumens at 5000CCT color temperature, this fixture delivers the correct amount of light where needed in hazardous location environments.</p> <p>The <strong>LEHL</strong> is ready to illuminate challenging environments such as Refineries, Drilling Platforms, Chemical Plants and Waste Water Treatment Plants.</p> <p>The <strong>LEHL</strong> is just one part of a complete range of general purpose, hazardous location and explosion proof fixtures and control solutions offered by the experts at LDPI.</p> <p></p> <p><a href="http://www.ldpi-inc.com/products/lehl-series-hazardous-location-led-fixture">Product Information</a></p> <p></p> <p><strong>For more information:</strong><br />Call: 800-854-0021<br />Visit: www.ldpi-inc.com<br />Contact us via email: sales@ldpi-inc.com</p> <p><strong>About LDPI</strong></p> <p>LDPI has been designing and manufacturing high performance LED and Fluorescent industrial and commercial lighting solutions for demanding applications for over 30 years. Our products are used in Industrial and Commercial locations for task and inspection, general and security lighting. We manufacture specialized and standard fixtures for use in wet, harsh, hazardous, and demanding applications.</p> http://www.ldpi-inc.com/about/press-releases/NEW-LEHL-LED-Hazardous-Location-Fixture NEW - 240 LED Hazardous Location Fixture http://www.ldpi-inc.com/about/press-releases/NEW-240-LED-Hazardous-Location-Fixture Wed, 12 Aug 2015 00:00:00 -0500 <p><strong>Eau Claire, WI &ndash; August 11, 2015 -</strong> LDPI, Inc., a leading manufacturer of LED hazardous location fixtures, announces the immediate availability of our new <strong>240 LED</strong> Fixture. This Class I D2 fixture has been certified by UL to use with energy efficient LED tube lamps. Energy efficient LED tube style lamps can deliver an energy savings of up to 40%.</p> <p>This rugged vapor-proof fixture is listed by UL for wet / damp locations and ideal for chemical plants, water treatment facilities, coal and dust storage areas, and areas with high humidity. With optional mounting brackets this fixture can be field adjusted to deliver lumen output directly where needed, resulting in no wasted light. Available in 2, 3, 4, 5 or 6 lamps, this four foot fixture can deliver 2,800 to 12,000 lumens with either a 4000K or 5000K CCT.</p> <p>The <strong>240 LED</strong> is just one part of a complete range of general purpose, hazardous location and explosion proof fixtures and control solutions offered by the experts at LDPI.</p> <p></p> <p><strong><a href="http://www.ldpi-inc.com/products/240-led-series-hazardous-location-fixture">Product Information</a></strong></p> <p><strong><br /></strong></p> <p><strong>For more information:</strong><br />Call: 800-854-0021<br />Visit: www.ldpi-inc.com<br />Contact us via email: sales@ldpi-inc.com</p> <p><strong>About LDPI</strong></p> <p>LDPI has been designing and manufacturing high performance LED and Fluorescent industrial and commercial lighting solutions for demanding applications for over 30 years. Our products are used in Industrial and Commercial locations for task and inspection, general and security lighting. We manufacture specialized and standard fixtures for use in wet, harsh, hazardous, and demanding applications.</p> http://www.ldpi-inc.com/about/press-releases/NEW-240-LED-Hazardous-Location-Fixture NEW - 380 LED Explosion Proof Fixture http://www.ldpi-inc.com/about/press-releases/NEW-380-LED-Explosion-Proof-Fixture Wed, 12 Aug 2015 00:00:00 -0500 <p><strong>Eau Claire, WI &ndash; August 11, 2015 -</strong> LDPI, Inc., a leading manufacturer of LED hazardous location fixtures, announces the immediate availability of our new <strong>380 LED</strong> Fixture. This Class I, D1 approved explosion proof fixture has been recently approved by UL for use with energy efficient LED tube-style lamps. Energy efficient LED tube lamps can deliver an energy savings of up to 40%.</p> <p>This explosion proof fixture comes with 5 different hub entries at each end to enable wiring and positioning at more desired angles. This four foot fixture can be fitted with 2 to 4 LED tube lamps and will deliver 2800 to 8000 lumens with a color temperature of 4000k or 5000K CCT.</p> <p>UL listed for paint spray applications, the <strong>380 LED</strong> can be fitted with optional polycarbonate shields or wire guards and can be wall mounted with optional mounting kit.</p> <p>The <strong>380 LED</strong> is ready to illuminate challenging environments such as Refineries, Drilling Platforms, Chemical Plants and Marine Outdoor Applications.</p> <p>The <strong>380 LED</strong> is just one part of a complete range of general purpose, hazardous location and explosion proof fixtures and control solutions offered by the experts at LDPI.</p> <p></p> <p><strong><a href="http://www.ldpi-inc.com/products/380-led-series-explosion-proof-light-fixture">Product Information</a></strong></p> <p></p> <p><strong>For more information:</strong><br />Call: 800-854-0021<br />Visit: www.ldpi-inc.com<br />Contact us via email: sales@ldpi-inc.com</p> <p><strong>About LDPI</strong></p> <p>LDPI has been designing and manufacturing high performance LED and Fluorescent industrial and commercial lighting solutions for demanding applications for over 30 years. Our products are used in Industrial and Commercial locations for task and inspection, general and security lighting. We manufacture specialized and standard fixtures for use in wet, harsh, hazardous, and demanding applications.</p> http://www.ldpi-inc.com/about/press-releases/NEW-380-LED-Explosion-Proof-Fixture NEW - LEINS3 LED Inspection Fixture http://www.ldpi-inc.com/about/press-releases/NEW-LEINS3-LED-Inspection-Fixture Thu, 16 Jul 2015 00:00:00 -0500 <p><strong>Eau Claire, WI &ndash; July 15, 2015 -</strong> LDPI, Inc., a leading manufacturer of LED hazardous location fixtures, announces the immediate availability of our new <strong>LEINS3</strong> Inspection Fixture. When surface finish counts, this is the fixture that will create a clear defined contrast on any surface. When your product or material is put into the best light, color defects and surface imperfections become immediately visible&hellip;Brilliant!</p> <p>Plastic, Sheet Metal, Aluminum, Glass, and Foil -- virtually any painted surface, <strong>LDPI </strong>can adjust the optics to visually give you the light and contrast needed to inspect and then improve your product&rsquo;s final appearance.</p> <p>This new fixture is available in 2Ft., 4Ft., and 8Ft. lengths and comes in 1 to 4 rows or channels of brilliant LED illumination. A multitude of lenses, cord and housing color options makes this fixture a must have for any environment where visible perfection is a must.</p> <p>For Automotive Paint Inspection, Glass, Plastic, PVC inspection, this fixture contributes to perfect manufacturing quality.</p> <p>The <strong>LEINS3</strong> is just one part of a complete range of inspection fixtures and control systems offered by the experts at LDPI.</p> <p></p> <p><strong><a href="http://www.ldpi-inc.com/products/leins3-series-led-inspection-light-fixture">Product Information</a></strong></p> <p></p> <p><strong>For more information:</strong><br />Call: 800-854-0021<br />Visit: www.ldpi-inc.com<br />Contact us via email: sales@ldpi-inc.com</p> <p><strong>About LDPI</strong></p> <p>LDPI has been designing and manufacturing high performance LED and Fluorescent industrial and commercial lighting solutions for demanding applications for over 30 years. Our products are used in Industrial and Commercial locations for task and inspection, general and security lighting. We manufacture specialized and standard fixtures for use in wet, harsh, hazardous, and demanding applications.</p> http://www.ldpi-inc.com/about/press-releases/NEW-LEINS3-LED-Inspection-Fixture NEW - LE203 LED Wet / Damp Industrial Fixture http://www.ldpi-inc.com/about/press-releases/NEW-LE203-LED-Wet-Damp-Industrial-Fixture Wed, 15 Jul 2015 00:00:00 -0500 <p><strong>Eau Claire, WI &ndash; July 15, 2015 -</strong> LDPI, Inc., a leading manufacturer of LED hazardous location fixtures, announces the immediate availability of our new <strong>LE203 </strong>fixture. Suitable for interior or exterior applications, this lightweight, nonmetallic fixture is ideal for corrosive or wet/damp environments.</p> <p>Available in 2Ft., 4Ft. and 8Ft. lengths, this inside rated Marine fixture also meets NEMA 4X rating and NSF High Pressure testing at 1500psi without compromising the integrity or purpose of the fixture. Lens options, wall or ceiling mount brackets, and optional emergency battery backup make this versatile fixture applicable for any environment where crystal clear energy efficient illumination is needed despite moisture, humidity, dust and fumes that may exist.</p> <p>Parking Garages, Tunnels, Locker Rooms, Water Treatment Plants, Paper Mills, Marinas, Food Production, Agricultural, and the list can go on, this fixture meets or exceeds the requirements demanding environments.</p> <p>With the new <strong>LE203</strong> fixture, LDPI has once again proven that they can deliver fixtures that other manufactures can&rsquo;t or won&rsquo;t. Call us today and let us design a complete lighting system for your needs!</p> <p>The <strong>LE203</strong> is just one part of a complete range wet / damp, general industrial and hazardous duty fixtures offered by the experts at LDPI.</p> <p></p> <p><strong><a href="http://www.ldpi-inc.com/products/le203-series-led-wet-location-lighting">Product Information</a></strong></p> <p></p> <p><strong>For more information:</strong><br />Call: 800-854-0021<br />Visit: www.ldpi-inc.com<br />Contact us via email: sales@ldpi-inc.com</p> <p><strong>About LDPI</strong></p> <p>LDPI has been designing and manufacturing high performance LED and Fluorescent industrial and commercial lighting solutions for demanding applications for over 30 years. Our products are used in Industrial and Commercial locations for task and inspection, general and security lighting. We manufacture specialized and standard fixtures for use in wet, harsh, hazardous, and demanding applications.</p> http://www.ldpi-inc.com/about/press-releases/NEW-LE203-LED-Wet-Damp-Industrial-Fixture NEW - LEVP LED Wet / Damp fixture http://www.ldpi-inc.com/about/press-releases/NEW-LEVP-LED-Wet-Damp-fixture Tue, 30 Jun 2015 00:00:00 -0500 <p><strong>Eau Claire, WI &ndash; June 30, 2015 -</strong> LDPI, Inc., a leading manufacturer of LED hazardous location fixtures, announces the immediate availability of our new <strong>LEVP</strong> Wet / Damp LED fixture. The <strong>LEVP</strong> has many applications including; Waste management, Chemical plants, Food Processing plants and any environment where moisture is present. </p> <p>Often referred to as the &ldquo;Jelly Jar&rdquo;, this versatile fixture can be ceiling or wall mounted. Its optional clear or frosted glass globe or lenses make it a perfect choice for many applications. This fixture can replace incandescent and fluorescent versions that are now becoming obsolete.</p> <p>With an average life span of 50,000 hours this fixture is nearly maintenance-free. You can almost hang it and forget it.</p> <p>Long lasting, Rugged, Brilliant!!</p> <p>The <strong>LEVP</strong> is a just one part of a complete range of LED fixtures that meet or exceed wet/damp, hazardous and explosion proof requirements from the experts at LDPI.</p> <p>Call 800-854-0021 or visit our website at <a href="http://www.ldpi-inc.com">www.ldpi-inc.com</a></p> <p><strong>About LDPI</strong></p> <p>LDPI has been designing and manufacturing high performance industrial and commercial lighting solutions for demanding applications for over 30 years. Our products are used in Industrial and Commercial locations for task and inspection, general and security lighting. We manufacture specialized and standard fixtures for use in wet, harsh, hazardous, and demanding applications. For more information, visit <a href="http://www.ldpi-inc.com">www.ldpi-inc.com</a></p> <p>###</p> <p>For information contact:</p> <p><a href="mailto:Sales@LDPI-INC.com">Sales@LDPI-INC.com</a></p> http://www.ldpi-inc.com/about/press-releases/NEW-LEVP-LED-Wet-Damp-fixture LED Hazardous duty fixtures now Linear http://www.ldpi-inc.com/about/press-releases/LED-Hazardous-duty-fixtures-now-Linear Wed, 13 May 2015 00:00:00 -0500 <p><span>LDPI, Inc., a leading manufacturer of LED hazardous location fixtures, announces the development and planned product introduction later this year of its new</span><strong>LE451</strong><span>hazardous location linear fixture. The</span><strong>LE451</strong><span>will be Class I and II, Division 2 listed and ready for wet, dusty, and unforgiving environments where explosive conditions may exist. It delivers a minimum of 100 lumens per watt and is designed to efficiently illuminate any classified area in industrial and warehouse settings. The fixture comes in 2 or 4 foot lengths and can be mounted in several configurations. It features an easy access hinged-door driver compartment that makes wiring and installation a breeze. Zhaga compliant LED modules and easy access driver will allow for upgrades as technology improves. The</span><strong>LE451</strong><span>will set the new standard for LED hazardous duty fixtures for years to come, and is the logical replacement for aging HID and Fluorescent fixture designs. The</span><strong>LE451</strong><span>will resolve your illumination and energy saving concerns. Call 800-854-0021 or visit our website at</span><a href="http://www.ldpi-inc.com/">www.ldpi-inc.com</a></p> http://www.ldpi-inc.com/about/press-releases/LED-Hazardous-duty-fixtures-now-Linear LE300 LED Lighting http://www.ldpi-inc.com/about/press-releases/LE300-LED-Lighting Wed, 28 Aug 2013 00:00:00 -0500 <p>Eau Claire, Wis. &ndash; (August 19, 2013) &ndash; LDPI, Inc. introduces its high-performance LED lighting solution &ndash; LE300. This fixture is available in three wattages, and is UL listed for wet locations and marine outdoor locations, IP66 and NEMA 4X rated, as well as Dark Sky Compliant. The 110 watt version is tested at 40 C ambient temperature, while the 80W and 50W are tested at 50 C ambient temperature. Available in pendant, ceiling, stanchion as well as yoke mounting, this versatile unit is designed for multipurpose use in many exterior applications.<br />For additional information on LDPI&rsquo;s lighting, contact an LDPI representative or the company at 4404 Anderson Drive, Eau Claire, WI 54703; or call 800-854-0021. Emails can be sent to sales@ldpi-inc.com. The company&rsquo;s website is www.ldpi-inc.com</p> <p>Product Information: <a href="http://www.ldpi-inc.com/products/le300-series-led">http://www.ldpi-inc.com/products/le300-series-led</a></p> http://www.ldpi-inc.com/about/press-releases/LE300-LED-Lighting Frequently Asked Questions About Lighting http://www.ldpi-inc.com/Frequently-Asked-Questions-About-Lighting Sun, 22 Dec 2002 00:00:00 -0600 <p><strong>Why is a lamp's CRI or CCT important?</strong><br />The Color Rendering Index (CRI) is the reason that the shirt and pants you thought matched so well at home seem to clash in the restroom at work. The closer the CRI of a lamp is to 100, the more "true" it renders colors in the environment. For individuals, such as graphic artists who perform tasks that require color precision or discrimination, lamps with a high CRI are recommended. Full-spectrum lamps are available that offer a CRI of over 90.<br /><br />Warm and inviting are some of the words used to describe environments that contain lamps with a Correlated Color Temperature (CCT) of 3000K. Coffee shops, restaurants, and hotel lobbies are a few applications in which cozy lighting environments are desirable. Hospitals, cafeterias, classrooms, and conference rooms are areas where an image of neatness is important. Lamps that appear cool - measuring a CCT of 4100K - are most appropriate for these types of applications. By comparison, daylight measures 5000K, and neutral lamps have a CCT of 3500K.<br /><br /><strong>What are the differentiating characteristics of incandescent, fluorescent, and high-intensity discharge (HID) lamps?</strong><br /><em>Incandescent lamps:</em></p> <ul> <li>Appear "warm" in color and have excellent color rendering.</li> <li>Are the least efficient of general lamp types due to the amount of energy consumed heating the filament in order for the lamp to turn incandescent.</li> <li>Have a short lamp life of between 500 and 3,000 hours.</li> <li>Are easy to install because no ballast is required.</li> </ul> <p><br /><em>Fluorescent lamps:</em></p> <ul> <li>Are available in a complete range of color combinations.</li> <li>Produce low heat.</li> <li>Require a more extensive installation because ballasts are a necessary part of the fixture.</li> <li>Have an extremely long life of up to 24,000 hours.</li> <li>Due to smaller sizes and screw base features, fluorescents can replace incandescent lamps.</li> </ul> <p><br /><em>High-intensity discharge (HID) lamps:</em></p> <ul> <li>Are ideal for large stores, warehouses, auditoriums, outdoor parking areas, and applications where efficiency is a priority.</li> <li>Have a warm-up period, which results in slower start-up.</li> <li>Deliver a large amount of light over a wide area.</li> <li>Have a long life of between 5,000 and 24,000 hours.</li> <li>Require ballasts.</li> </ul> <p><br /><strong>How do T12, T10, T8, and T5 fluorescent lamps differ?</strong><br />These four lamps vary in diameter (ranging from 1.5 inches to 0.625 or five-eighths of an inch in diameter). Efficacy is another area that distinguishes one from another. T8 lamps offer a 5-percent increase in efficacy over 34-watt T12 lamps, and have become the most popular choice for new installations.<br /><br /><em>Choosing Light Sources for General Lighting</em>, published in 1998 by the Illuminating Engineering Society of North America (IESNA), New York City, states that although they are available in lengths similar to the T12, T8s require a different ballast. For retrofit, the T10 is compatible with T12 ballasts. The T10 also uses a higher-efficiency phosphor and has a greater efficacy than the T12.<br /><br />T5s are straight tube lamps with a high efficacy. Due to their unique sizes (available only in "metric" lengths) and special ballast requirements, the T5 is a favorable choice for retrofits for VHO fixtures.<br /><br /></p> <h3>GLOSSARY OF LIGHTING TERMS</h3> <blockquote> <p><strong>Color rendering index (CRI)</strong> - a method for describing the effect of a light source on the color appearance of objects being illuminated, with a CRI of 100 representing the reference condition (and the maximum CRI possible). In general, a lower CRI indicates that some colors may appear unnatural when illuminated by a lamp.<br /><br /><strong>Color temperature</strong> - see correlated color temperature.<br /><br /><strong>Constant-wattage autotransformer (CWA)</strong> - the most common type of ballast used for HID lamps, it maintains a constant power (wattage) supply to the lamp when system input voltage fluctuates.<br /><br /><strong>Correlated color temperature (CCT)</strong> - a description of the color appearance of a light source in terms of warmth or coolness, as measured on the Kelvin scale (K). As the temperature rises, the color appearance shifts from yellow to blue. Thus, lamps with a low CCT (3000K or less) have a yellow-white color appearance and are described as "warm"; lamps with a high CCT (4000K and higher) have a blue-white color appearance and are described as "cool".<br /><br /><strong>Ballast factor (BF)</strong> - the ratio of light output of a lamp operated by a given ballast to the light output of the same lamp when operated by a reference ballast. Lamps operated by a ballast with BF of 0.90 will provide 90 percent of their rated light output (lumens). BFs between 0.85 and 1.0 are the most common.<br /><br /><strong>Disability glare</strong> - light that is relatively bright compared to the background, making vision measurably worse. The inability to see clearly as a result of the brightness of headlights from an oncoming car at night is an example.<br /><br /><strong>Discomfort glare</strong> - the type of glare that is uncomfortable and distracting, yet less obvious than disability glare. A bright light source in an individual's peripheral vision is an example.<br /><br /><strong>Efficacy</strong> - the ratio of light output (lumens) to input power (watts) expressed in lumens per watt (LPW).<br /><br /><strong>High pressure sodium (HPS)</strong> - a high-intensity discharge lamp type that uses sodium under high pressure as the primary light-producing element.<br /><br /><strong>Illuminance</strong> - The amount of light that reaches a surface. Illuminance is measured in footcandles (lumens/square foot) or lux (lumens/square meter). One footcandle equals 10.76 lux, although for convenience the IESNA uses 10 lux as the equivalent.<br /><br /><strong>Instant-start</strong> - a method of starting fluorescent lamps. The voltage, which is applied across the electrodes to strike the electric arc, is up to twice as high as it is with other starting methods. The higher voltage is necessary because the electrodes are not heated prior to starting.<br /><br /><strong>Lamp life</strong> - the median life span of a very large number of lamps. Half of the lamps in a sample are likely to fail before the rated lamp life, and half are likely to survive beyond the rated lamp life.<br /><br /><strong>Lamp lumen depreciation (LLD)</strong> - the reduction in lamp light output that progressively occurs during lamp life.<br /><br /><strong>Lumen (lm)</strong> - a unit of measurement of the rate at which a lamp produces light. A lamp's light output rating expresses the total amount of light emitted in all directions per unit time. Ratings of initial light output provided by manufacturers express the total light output after 100 hours of operation.<br /><br /><strong>Luminance</strong> - the photometric quantity most closely associated with the perception of brightness, measured in units of luminous intensity (candelas) per unit area (feet squared or meters squared).<br /><br /><strong>Luminaire efficiency</strong> - the ratio of the light emitted by luminaire to the light emitted by the lamp or lamps within it. Components of a luminaire, such as reflectors and diffusers, absorb some of the light from the lamps(s). A highly efficient luminaire emits most of the light that the lamp(s) emits.<br /><br /><strong>Mercury vapor (MV)</strong> - a high-intensity discharge lamp type that uses mercury and several halide additives as light-producing elements.<br /><br /><strong>Metal halide (MH)</strong> - a high-intensity discharge lamp type that uses mercury and several halide additives as light-producing elements.<br /><br /><strong>Open-circuit voltage</strong> - the voltage applied across the output terminals of a ballast when no load is connected. This is the voltage applied across a lamp circuit to start a lamp. After starting, the voltage rapidly decreases and stabilizes at the operating voltage.<br /><br /><strong>Preheat</strong> - a method of starting fluorescent lamps in which the electrodes are heated before a switch opens to allow a starting voltage to be applied across the lamp. With preheat starting, the lamp flashes on and off for a few seconds before staying lit.<br /><br /><strong>Power factor</strong> - a measure of how effectively a ballast converts current and voltage into usable power to operate the lamps. A power factor of 0.9 or greater indicates a high power-factor ballast.<br /><br /><strong>Prismatic lens</strong> - an optical component of a luminaire that is used to distribute the emitted light. It is usually a sheet of plastic with a pattern of pyramid-shaped refracting prisms on one side. Most ceiling mounted luminaries in commercial buildings use prismatic lenses.<br /><br /><strong>Rapid-start</strong> - a method of starting fluorescent lamps in which the ballast supplies voltage to heat the lamp electrodes for one to two seconds prior to starting and, in most cases, during lamp operation. A rapid-start system starts smoothly, without flashing.<br /><br /><strong>Reflected glare</strong> - often called veiling reflections, glare that results from light shining off polished or glossy surfaces.<br /><br /><strong>Restrike time</strong> - the time required for a lamp to restrike, or start, after the lamp is extinguished. Normally, HID lamps need to cool before they can be restarted.<br /><br /><strong>Visual comfort probability (VCP)</strong> - a system for estimating discomfort glare that predicts the percentage of people who are likely to find the lighting comfortable, against the percentage that find it uncomfortable.</p> </blockquote> http://www.ldpi-inc.com/Frequently-Asked-Questions-About-Lighting NEMA Plug and Receptable Configurations http://www.ldpi-inc.com/NEMA-Plug-and-Receptable-Configurations Mon, 03 Jun 2002 00:00:00 -0500 <p><span style="font-family: Arial,Helvetica,sans-serif;"><span class="style8">Configurations for:</span></span></p> <p>&bull; <span style="font-family: Arial,Helvetica,sans-serif;"><span class="style8">Straight blade plugs and receptacles</span></span><br />&bull; <span style="font-family: Arial,Helvetica,sans-serif;"><span class="style8">Locking plugs and receptacles</span></span><br />&bull; <span style="font-family: Arial,Helvetica,sans-serif;"><span class="style8">20A / 30A - 3, 4, and 5 wire locking plugs and receptacles</span></span></p> <ul> </ul> http://www.ldpi-inc.com/NEMA-Plug-and-Receptable-Configurations Area Classifications - Flammable Gases, Vapors and Liquids http://www.ldpi-inc.com/Area-Classifications-Flammable-Gases-Vapors-and-Liquids Thu, 03 Jan 2002 00:00:00 -0600 <h4>CEC/NEC (North American) Area Classifications</h4> <p><strong>Flammable gases, vapors or liquids</strong></p> <p><strong>IMPORTANT NOTICE REGARDING THESE DOCUMENTS</strong></p> <p>LDPI disclaims liability for any personal injury, property or other damages of any nature whatsoever, whether special, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or reliance on this document. LDPI also makes no guaranty or warranty as to the accuracy or completeness of any information published herein.</p> <p>In issuing and making this document available, LDPI is not undertaking to render professional or other services for or on behalf of any person or entity, nor undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstance.</p> <p>This document is intended as a simplified guide through hazardous and extreme conditions as found in many industrial applications. For actual installations, use the NEC/CEC code book and IEC/CECELEC approvals and wiring codes as final authority on any installation. All design should be performed by licensed professional engineers and installation should be performed by competent licensed electrical contractors.</p> <p>Class I</p> <p>Class I (Gas and Vapors) Hazardous Substances</p> <p>Class II</p> <p>Class II (Explosive Dusts) Hazardous Substances</p> <p>Class III</p> <p>Euro: IEC/CENELEC Area Classifications</p> http://www.ldpi-inc.com/Area-Classifications-Flammable-Gases-Vapors-and-Liquids Group Relamping & Maintenence vs. Spot Relamping http://www.ldpi-inc.com/Group-Relamping-Maintenence-vs-Spot-Relamping Sat, 22 Dec 2001 00:00:00 -0600 <p>Group relamping is one of the most important aspects of lighting maintenance. Based on careful planning, scheduled group relamping involves calculating the average rated life and the average output of the lamps in your fixtures.<br /><br />While spot relamping (one-by-one, as lamps burn out) is an alternative approach, it can be up to five times more expensive than relamping on a regular basis and, it does not offer the efficient utilization of maintenance labor that is standard with group relamping.<br /><br />With group relamping, all the lamps in a given area are replaced at a scheduled time. This method is actually the most effective and least cost-intensive approach. This procedure often includes the repairing or replacement of defective parts in the fixtures such as sockets and ballasts. It also includes washing and cleaning the reflective surfaces and lenses.<br /><br />When performed during off-peak hours, group relamping creates less inconvenience and disruption. Your lighting maintenance is a budgeted, controlled and most importantly, predicted expense. And by taking advantage of large quantity lamp discounts, you can save on the unit price of the lamps. And, group relamping ensures that you get the most footcandles for your energy dollar and that your lighting costs always meet your lighting specifications.</p> <p></p> <h3 class="center"><strong>Typical Fluorescent Lamp Mortality</strong></h3> <p class="center"><em>Typical Life Expectancy or Mortality Curve for Fluorescent Lamps<br /></em><img src="../../../../%7Eldpiinc/images/graphics/lamp-mortality.gif" alt="Lamp Mortality Graph" align="middle" /></p> <p class="center"></p> <h3>GROUP RELAMP COST</h3> <blockquote> <p class="bodytext">Labor cost to group relamp 800 lamps (every 4 years or 2 times over the 8 years). Group replacement time of 5 minutes per lamp (significant gains in efficiency due to replacing all lamps in each fixture in an area at the same time). Utilizing in-house loaded labor rate of $14.00/hour. Labor cost over 8 years will total (includes 4% inflation):</p> <h5>$1,985.00</h5> <p><br />Labor cost for spot replacements after a group relamp 80 lamps over 8 years at the 20 minutes per lamp will cost (includes 4% inflation):</p> <h5>$420.00</h5> <p><br />Lamp cost to group relamp (2 times) and spot replacements over 8 years 1680 lamps. Total cost (includes 4% inflation):</p> <h5>$2,255.00</h5> <p><br />Supervision, ordering, inventory, etc. approximately 5% of total labor and material cost (again, efficiencies obtained and lower day-to-day activities and inventories):</p> <h5>$230.00</h5> <p><br /><strong>TOTAL COST OVER 8 YEARS</strong></p> <h5>$4,890.00 (or $610.00/year average)</h5> <p></p> </blockquote> <h3>SPOT RELAMP COST</h3> <blockquote> <p class="bodytext">Labor cost to individually spot replace 800 lamps (over 8-year period). Replacement time of 20 minutes per lamp (includes time to get ladder and lamp materials from stock room). Utilizing an in-house loaded labor rate of $14.00/hr. Labor cost over 8 years will total (includes 4% inflation):</p> <h5>$4,300.00</h5> <p><br />Lamp cost to individually spot replace 800 lamps at $1.30 each. Total cost over the 8 year period (includes 4% inflation):</p> <h5>$1,195.00</h5> <p><br />Supervision, ordering materials, inventory cost, etc. approximately 10% of labor and material cost (stated above):</p> <h5>$550.00</h5> <p><br /><strong>TOTAL COST OVER 8 YEARS</strong></p> <h5>$6,045.00 (or $755.00/year average)</h5> </blockquote> <p></p> <h3>Summary</h3> <p>Group Replacement Cost (Over 8-Year Period) $4,890.00<br /> Spot Replacement Cost (Over 8-Year Period) $6,045.00<br /> <strong>NET SAVINGS (Over 8-Year Period, 20%) $1,155.00</strong></p> <p><sub>For analysis purposes. The previous comparison is based on a typical medium size retail location as follows;<br />Typical location: Number of Lamps - 800 ea. F40/CW/SS<br />Annual operating hours: 5040 hours (14 hr/day x 360 days/year - includes 1 hour before and 1 hour after open.</sub></p> http://www.ldpi-inc.com/Group-Relamping-Maintenence-vs-Spot-Relamping Fundamentals of Paint Spray Booth Lighting http://www.ldpi-inc.com/Fundamentals-of-Paint-Spray-Booth-Lighting Sat, 01 May 1999 00:00:00 -0500 <p>Written by Mike Singer, as seen in <strong>Metal Finishing</strong>, May 1999</p> <p>Selecting the proper lighting For spray booth applications is critical to help optimize quality of workmanship and productivity. The type and size of the booth also has a direct bearing on the number, type, and size of the light fixtures needed to achieve proper lighting conditions. In general, the larger the size of the booth, the increased number of fixtures needed.<br /><br />The most common type of lighting used in paint spray booths are panel mounted fluorescent lighting fixtures. The fixtures are actually mounted and recessed in the booth panels. These fixtures are commonly Class I, Division 2 or Class I, Division 1 rated fixtures and are third party listed for hazardous locations. Class I, Division 2 locations are those where volatile flammable liquids or gases are handled, processed, or used. Normally, they will be confined within closed systems from which they can escape only in the case of rupture or deterioration of the systems.<br /><br />Panel mounted design provides a simple and efficient means of installation. These fixtures are typically constructed of either 18 or 20 gauge steel construction. Coupled with a white baked enamel finish, a durable and highly reflective fixture finish is created. A clear, tempered safety glass lens is sealed and gasketed to ensure a durable, long lasting seal against vapor, dust, and moisture. Commonly used fixtures of this type used in paint spray booths are 4 lamp, 4-foot fixtures with 32, 40, or 60-watt HO lamps, with 40-watt lamps being the most commonly used. The fixtures will normally have an inside, rear, or dual inside/rear access hinged door panel for the purpose of servicing the lamps and ballasts.</p> <p><br />In fixtures with an inside access, an interlock switch is provided and is to be wired in such a way as to disable paint spray equipment when the inside access panel is opened. This enables the fixture to be mounted in spray booth panels without the previously required second lens. In instances where a non-hazardous rated fixture is used, these must be mounted behind a sealed stationary mounted lens. These fixtures can only be serviced from the outside of the booth.<br /><br />Hazardous rated fixtures must, by code, be used in areas that extend from the edges of any opening of the booth in accordance with the following:<br /><br /></p> <ul> <li>If the exhaust ventilation system is interlocked with the spray application equipment, then the Division 2 location shall extend 5 feet horizontally and 3 feet vertically from the open face or open front of the booth.</li> <li>If the exhaust ventilation system is not interlocked with the spray application equipment, then the Division 2 location shall extend 10 feet horizontally and 3 feet vertically from the open face or open front of the booth. The term interlocked means that the spray application equipment cannot be operated unless the exhaust ventilation system is operating and functioning properly and spray application is automatically stopped if the exhaust ventilation system fails.</li> </ul> <p><br />If fluorescent light fixtures are actually mounted inside a paint spray booth and are not recessed panel mounted, then Class I, Division 1 explosion proof fixtures must be used. These fixtures are typically available with 2, 3, or 4 lamps in 2 foot or 4 foot length fixtures. A Class I, Division 1 location is defined as where hazardous atmosphere may be present during normal operations. It may be present continuously, intermittently, periodically, or during normal repair or maintenance operations, or those areas where a breakdown in processing equipment releases hazardous vapors with the simultaneous failure of electrical equipment.<br /><br />When actually selecting light fixtures for a paint spray booth, it is important to think about what you want to achieve and to get an even distribution of lighting in the booth. There are many factors that can influence lighting levels in a spray booth application. In order to help select the right fixtures, the following information is important to know:<br /><br /><strong>Booth Information</strong></p> <ul> <li>Is the application retrofit or new?</li> <li>What are the inside dimensions of the booth? (To include width, length, and depth.)</li> <li>What is the specific booth design?</li> <li>If a retrofit situation, what are the type and number of existing lights in the booth?</li> <li>For servicing, do you want the lights to be inside access, outside access, or both?</li> <li>Does the existing booth have a hipped ceiling? If yes, what is the hip size and degree? Are there lights in the hip, and is it possible to add lights to the hip?</li> <li>Does an existing booth have corner chambers, and what are the sizes?</li> <li>What construction is the booth floor?</li> <li>What materials are used for booth construction in the floor, walls, and ceiling, and what are the specific colors?</li> <li>Are there man-doors in the booth walls? If so, where?</li> <li>Are there any windows or translucent panels? If so, where?</li> <li>Are the filters located in the floor, ceiling, or booth walls?</li> </ul> <p><br /><strong>Objects</strong></p> <ul> <li>What types of products are normally painted?</li> <li>What are the shapes of the products (square, round, rectangular, etc.)?</li> <li>What is the largest object in terms of width, height, and depth?</li> <li>What is the smallest object in terms of width, height, and depth?</li> <li>What colors are primarily painted?</li> </ul> <p><br />With this information, light fixture manufacturers can use computer programs to help determine the recommended number and placement of the fixtures.; As a rule of thumb, 100 foot-candles at a 3-foot height has been a general industry standard. If a different foot-candle level is desired to be maintained at a different height, this should be communicated to your lighting supplier. Light intensity measured on a plane, at a specific location, is referred to as illuminance. Illuminance is measured in foot-candles, which essentially are lumens per square foot. Other factors such as reflectance of surrounding surfaces, fixture efficiency, and lamp lumen output can influence the type and quantity of needed light fixtures. As mentioned earlier, the size of a paint booth also can influence the size of the fixtures. In larger booths, such as truck paint spray booths, 4 lamp, 8-foot length fixtures featuring 95 or 110-watt HO lamps are sometimes desired. The type of a booth can also influence the choice of fixtures. Slim light fixtures that feature a compact design, which are just 2 1/4-in. fixture depth, allow for mounting in an insulated panel.<br /><br />The ability to see colors properly is another aspect of lighting quality. Light sources vary widely in their ability to accurately reflect true colors of objects. The color rendering index (CRI) scale is used to compare the effect of a light source on the color appearance of its surroundings. A scale of 0 to 100 defines CRI. The higher the color rendering index, the less color shift or distortion that occurs. As an example, a standard cool white T12 (1.5' diameter) fluorescent lamp with a Kelvin temperature of approximately 4100oK has a CRI of 62, which is considered low. Where quality or color matching is important, a higher CRI rated lamp will normally be needed. As a general rule of thumb, the higher the CRI, the lower the efficiency of the lamp. It is important that a balanced approach be used when considering CRI, lamp lumen output, and efficiency of the lamp.<br /><br />For many years, the lighting standard has been F40T12 fluorescent lamps. These are 40 watt, 1.5' diameter lamps. Through technological advances, lamps have been developed that consume less energy, produce better quality and higher levels of light, such as T8 (1' diameter) lamps. The T5 (5/8' diameter) lamps, which are starting to be introduced to the U.S. market, show even more promising results concerning maintained lumen output over the life of the lamp, energy savings, and they operate more efficiently at higher ambient temperatures than T8 or T12 lamps.<br /><br />Once the light fixtures have been installed in the spray booth, care must be taken to prevent dirt accumulation and paint over-spray buildup on the fixture lenses. If not removed on a continual basis, this will degrade the overall lighting quality in a booth. A simple, effective light fixture lens covering is cling-on plastic film. This is a 3 mil plastic with a custom acrylic adhesive in 12" and 18" widths. It is easy and quick to install and remove. A total re-lamping program should also be considered as lamps reach the end of their life.<br /><br />In conclusion, lighting selection in a paint spray booth should not be taken for granted. Different applications can require different light properties. To correctly match the proper lamp, ballast, and fixture combination, you should consult and work closely with your lighting supplier before making your lighting selection. One such manufacturer of fluorescent lighting for paint spray booths and hazardous industrial locations is LDPI Lighting, 4404 Anderson Drive, Eau Claire, Wisconsin 54703. They specialize in this area and are an acknowledged industry leader in providing lighting solutions for paint booths and hazardous industrial locations. Their toll free telephone number is 800-854-0021, and their fax number is 715-839-8145. Their website is <a href="http://www.ldpi-inc.com/">www.ldpi-inc.com</a> and email address is <a href="mailto:sales@ldpi-inc.com">sales@ldpi-inc.com.</a></p> http://www.ldpi-inc.com/Fundamentals-of-Paint-Spray-Booth-Lighting