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ATEX and IEC Ex Flame-proof Explosion Proof Lighting & Equipment
Explosion Proof Lights
Explosion Proof Motors - Motors for Hazardous Locations
Industrial and Vaporproof Emergency Failsafe Lighting
Industrial Cord Reels and Tool Taps
Industrial Work Area Heaters
Machine Vision Lights
Megatower™
QC Series Industrial Portable Lighting - Quick Change Mount
Rig Lights
Stadium lights
String Lights and Temporary Light Stringers
Tank Cleaning Lights
Three Phase Motor Soft Starters
Vapor Proof LED Lights
Variable Frequency Drives (VFDs)
Vehicle Mounting Plates
Workboat Light Fixtures & Lighting Equipment
Yacht Engine Room Lights
Color Changing LED RGB Lighting
Explosion Proof Cord Reels
GOLIGHT Spotlights
Larson FUTURE - Lease Lighting
Remote Area Lighting and Scene Lights
Utility Bucket Mount, Receiver Hitch & Trailer Mount Lighting
Aevum Control Lighting and Equipment - IIoT
Butane and Solvent Extraction Room Lighting and Equipment
DC to DC Transformers and Power Supplies
Explosion Proof Fans & Blowers
Explosion Proof Paint Spray Booth Approved Lights
Explosion Proof String Lights
Explosion Proof Switchgear & Controls
Fleet Service Lights and Lighting Equipment
Industrial Equipment Trailers
Industrial Handlamps & Droplights
ISO 14644/FS-209E Clean Room Lighting
LED Blasting Lights
Night Time Fishing Lights
Portable AC Power Supply Units
Portable Power Distribution Panels
Power Distribution Panels with KVA Transformers
Self-Contained Lighting
Service Pit Lighting
Solar Generators & Solar Powered Lighting
Agricultural Farm Equipment Lighting & Beacons
Explosion Proof Cameras & Surveillance Systems
Explosion Proof Emergency Lights
Explosion Proof Heaters
Garage & Gas Station Canopy Lights
LED Grow Lights
LED Lights
NDT Ultraviolet Lights
Portable Hazardous Location Lighting
Radio Communication Towers and Equipment
Salt Water Processing Equipment
Shelter & Tent Lighting
Thermal Monitoring Cameras and Systems
48V LED Equipment Lights
ATEX Rated Explosion Proof Lights
Automotive Lighting
Class Rated Signals, Alarms, and Systems
Hazardous Location Area Lights and Portable Lighting
HID Equipment Lights
Hot Work Permit Lighting and Equipment
Hunting Lights
Industrial lasers
Industrial Transformers
Light Towers
Outdoor Lighting
Remote Security and Surveillance Systems
Temporary Construction Lights
Vehicle Mounted Spotlights
Equipment & Heavy Machinery LED Light Package Fitouts
Phase Converters - Single to Three Phase
Marine Shore Power Cords and Equipment
24 Volt Military Lights
Disaster Relief / First Responders / Search & Rescue Lighting
Plastic Handcuff Key
110/120 Volt Flood Lights
Post Mount Spotlights
Magnetic Work Lights
Crank-up Light Masts
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Intrinsically Safe Lights
Military Flashlights
LED Waterproof Lanterns
Work Area Lights
12 Volt Flood Lights
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Boat Spotlights
New Boat Lights
HID Boat Lights
Boat Dock Lights
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Remote Control Lights
Control Lights
Tow Lights
Magnetic Control Lights
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NEW Lights and New Products
Evaporative Coolers
Police Equipment
AC/DC Transformers
Power Supplies
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Military Spotlights 24V
Infrared Filters, Covert Covers, and Blackout IR Lenses
Military Equipment
Ultralife Batteries
Remote Control Pan Tilt Base
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Larson Electronics Spotlights
Larson Electronics Parts
Replacement Lamps
Cords - Brackets
Portable Wheeled Generators
Non-Hazardous Location Extension Cords / Plugs / Outlets
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HID Work Lights
HID Dive Lights
HID Off Road Lights
Acro Lights HID Lights
Halogen Lights
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Acro Light Flashlight
Xenon HID Flashlights
Powerlight Flashlight
HID Flashlights
Xenon Flashlights
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LED Status Lights
Forklift Lights
Tractor Lights
HID Post Mount Lights
Roof Mount Lights
Post Mount Light parts
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Flashlight Holder
Magnet Spotlight Base
Tripods-Magnetic Base
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Recharging Spotlights
Fire Rescue Lights
LED Street Lights
Utility Lights
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Hazard Lights
Strobe Lights - Battery Operated
Strobes & Beacons
Strobe Light Bars
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Headlights - Headlamps - Hard Hat Lights
Flashlights
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Suction Mount Lights
Magnetic Spotlights
12/24 Volt Spotlights
Gifts For Men
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New 12 / 24 Volt Lights
Explosion Proof Accessories and Replacement Parts
Explosion Proof Lighting
Explosion Proof Hand Lamps (Drop Lights)
Explosion Proof Lights - Stand/Dolly
Explosion Proof Tank Lights
Explosion Proof Phones and Intercoms
Explosion Proof Extension Cords
Black Friday & Cyber Monday Specials
Crane Lights
Explosion Proof Light Rentals
General Light Rentals
Light Tower and Light Plant Rentals
Power Distribution Rentals
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Power Plant Lighting
Refinery lights
Environmental Services Lights
Aerospace Lights
Chemical Plant Lights
Food Grade Safe Lights
Film and Entertainment Lights
Handheld Meters and Devices
Waste Water Treatment Lights
Mining Lights
Ship Yard Lights
Work Site Lighting
         

   
08/18/12 Basics of Selecting Effective Paint Booth Lighting

Article- August 2012 By Larson Electronics.com

Low Profile Explosion Proof Paint Booth Light with Emergency Backup

Larson Electronics Low Profile Explosion Proof Paint Booth Light with Emergency Backup


Paint spray booth lighting is without any doubt the most critical part of any paint booths design features. There are few items that can affect the productive capability as well as the quality of product coming out of a paint booth as drastically as lighting. The type of lighting used, the quality of the lamps themselves, the color temperature of the bulbs, and how the lights are positioned within the booth can significantly affect your perception of prepped surfaces and the finished color of paints once they are applied. Additionally, lighting equipment plays a large role in paint booth safety as well since the solvents, paints, and chemicals used with the booth are usually flammable and give off vapors and gases that can be ignited when exposed to an ignition source such as a spark or a hot bulb.


The lighting of choice for most paint booths is standard four foot long fluorescent bulbs, usually arranged in fixtures containing either two or four bulbs grouped together. Fluorescents are popular because they produce a very wide spread of light output, which helps to evenly and uniformly illuminate the irregular surfaces of vehicles and thus better reveal imperfections in the surface to be coated. Fluorescent lamps are also popular because they can be had in a variety of color temperatures, which allows paint booth operators to choose lamps according to how well they mimic the natural color of daylight, or how accurately they render the color of the paints being used.


For most paint booth lighting applications, operators prefer a fluorescent lamp with a high color temperature and high color rendering index. The color temperature rating of a lamp denotes where in the light spectrum it radiates the majority of its light output. An incandescent lamp for example has a color temperature of around 2700 Kelvin, which is close to the red end of the light spectrum, hence the yellow or orangish color of the light they produce. A natural white fluorescent on the other hand has a color temperature of around 5500-6000 Kelvin, thus putting its light output closer to the middle of the light spectrum.  When we view objects under these different lamps, their colors will appear different due to the spectral properties of the light the lamps produce.


An incandescent lamp with its output heavily skewed into the red end of the light spectrum will tend to reproduce red, orange, and yellow colors well, but do poorly when it comes to rendering blues, greens and whites. The natural white fluorescent on the other hand produces light near the middle of the light spectrum and thus will generally reproduce all colors fairly well, with some exceptions. Because of how a bulb produces light, how much of the light spectrum it actually radiates can vary greatly. Although a fluorescent lamp may radiate in the 6000k end of the light spectrum, this does not automatically mean it radiates all the colors of the light spectrum. A fluorescent lamp may be rated at 6500K, but it can also be red deficient, resulting in a lamp that produces somewhat bluish light that poorly renders the true red coloring of an object. In these cases, it is best to choose a lamp that is “full spectrum” with a middle of the range color temperature, meaning it produces the widest possible range of color wavelengths across the light spectrum.


As a result, it is also necessary to consider the color rendering index of a lamp as well.  The color rendering index tells us how well a lamp renders the colors of its spectrum. Incandescent lamps have a CRI of 100 despite having poor light quality because they reproduce the colors of their spectrum very well. Thus, if we choose a fluorescent paint booth light with both a mid range color temperature and a high CRI, we can be reasonably assured of good quality light output that will reproduce colors accurately. Generally speaking , for paint booth light it is best to look for lamps with a color rendering index of at least 80 and a color temperature in the 5500-6000K range.


Positioning of lamps within the paint booth also plays a critical role in how effectively the work space will be illuminated. Since fluorescent lamps are typical long and thin, arranging them around the booth vertically can make it difficult to illuminate the work space effectively. With the lamps arranged vertically, it is easy for the paint booth operators’ body to block most of the output of a lamp when he moves in front of it. Fluorescent paint booth lights are best positioned horizontally, which allows more of their light to radiate onto the work surface even when an object is in front of the fixture. Another good practice is to mount overhead lighting across the upper corners of the booth rather than flat on the ceiling, thus providing the maximum amount of coverage with less potential for shadowing or obstruction.


Above all else, a lighting that will be installed within the confines of the booth must be approved for use in hazardous locations. The nature of the materials used and the type of work performed gives paint booths a Class 1 Division 1 rating, meaning lighting approved for regular exposure to flammable or explosive gases and vapors must be used. While it is also popular to install lighting outside of the booth in panels in order to avoid the expense of explosion proof compliant lighting, there are some special considerations that must be considered. For instance, some areas, door openings and exhaust vents for example, pose the potential to allow flammable gases and vapors to escape. As a result, when the spraying system cannot operate unless the ventilation system is switched on, then any lighting within 5 feet horizontally and 3 feet vertically of the opening must be Class 1 Division 2 approved.


For safety purposes, paint booth operators would be best served to consult with the NEC guidelines, particularly articles 500 through 516 in order to be certain their booth is compliant with all current regulations as well as safe for operation.





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Low Profile, Explosion Proof Light - 4Ft, 2 Lamp - Class 1 Div. 2 - Paint Spray Booth Rated - T8
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Low Profile Hazardous Area Fluorescent Light - Lay-In Mount -Front Load Troffer - Class 1, Div. 2
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