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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
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
Intrinsically Safe Lights
Military Flashlights
LED Waterproof Lanterns
Work Area Lights
12 Volt Flood Lights
Boat Spotlights
New Boat Lights
HID Boat Lights
Boat Dock Lights
Remote Control Lights
Control Lights
Tow Lights
Magnetic Control Lights
NEW Lights and New Products
Evaporative Coolers
Police Equipment
AC/DC Transformers
Power Supplies
Military Spotlights 24V
Infrared Filters, Covert Covers, and Blackout IR Lenses
Military Equipment
Ultralife Batteries
Remote Control Pan Tilt Base
Larson Electronics Spotlights
Larson Electronics Parts
Replacement Lamps
Cords - Brackets
Portable Wheeled Generators
Non-Hazardous Location Extension Cords / Plugs / Outlets
HID Work Lights
HID Dive Lights
HID Off Road Lights
Acro Lights HID Lights
Halogen Lights
Acro Light Flashlight
Xenon HID Flashlights
Powerlight Flashlight
HID Flashlights
Xenon Flashlights
LED Status Lights
Forklift Lights
Tractor Lights
HID Post Mount Lights
Roof Mount Lights
Post Mount Light parts
Flashlight Holder
Magnet Spotlight Base
Tripods-Magnetic Base
Recharging Spotlights
Fire Rescue Lights
LED Street Lights
Utility Lights
Hazard Lights
Strobe Lights - Battery Operated
Strobes & Beacons
Strobe Light Bars
Headlights - Headlamps - Hard Hat Lights
Suction Mount Lights
Magnetic Spotlights
12/24 Volt Spotlights
Gifts For Men
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
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

06/02/10 Explosion Proof LEDs: Advanced Technology for Spray Booth Applications

One of the most critical aspects of a properly designed spray booth is the type of lighting to be used in its operation. For most applications, the number and size of the lights needed is determined by the size of the booth. The second most important consideration is the quality of the illumination provided by these lights. It is well known that different types of lamps produce light of differing intensity and color ranges, and it is these factors that have direct bearing on the ability to produce consistent quality spray work in the booth.


Most spray booths utilize fluorescent light fixtures that usually fall under Class-1 Division-2 or Class-1 Division-1 ratings and are approved for use in Hazardous locations where volatile gases and flammable liquids are handled or prepared. Fixtures intended for use inside the booth without the protection of panels or integral mounting recesses must be rated Class-1 Division-1 explosion proof while fixtures mounted inside of panels built into the booth with protective seals can be Class-1 Division-2.


Aside from ensuring that you have the properly rated lamps for your intended spray booth application, it is critically important that you select lights that will produce the most effective illumination for close work. Light quality and spectrum, even distribution, and reliability are important considerations and must be taken into account when choosing fixtures for use in the demanding environment of a spray booth. The ability to inspect and assess the quality and uniformity of spray applications is directly affected by the lamps used, and poor lighting can have serious detrimental effects on the quality of the finished products.


The best lighting will provide uniform illumination from all angles, and not create weak spots where light fails to disperse evenly. Good lighting will also render true colors and textures accurately and have a high CRI, or “Color Rendering Index”. This is extremely important in applications that require the finished product have high aesthetic appeal such as automotive painting. This CRI is based on a scale of 0 – 100, with a higher number representing a higher CRI, or ability to render colors accurately. Standard fluorescent bulbs are generally rated at an approximate CRI of 62. Higher ratings tend to require higher output, so efficiency tends to suffer as CRI increases, thus requiring a compromise between high CRI and output efficiency.


Most applications have relied on high performance 40 watt fluorescent bulbs that have improved efficiency and output ratings over plain fluorescents. While effective, they still consume significant amounts of electricity, and tend to have somewhat shorter life spans than standard fluorescents. In addition, their long tube designs are often cumbersome to handle when it is time to relamp with fresh tubes, and the seals and covers often employed in their construction are difficult to replace. It is because of these traits that advances in lighting technology have been rigorously pursued and applied in hazardous location lighting applications, resulting in significant improvements in both light quality and efficiency. One of the most promising areas of technological progress has been in the development of the light emitting diode, or, LED.


Although LEDs have been around for decades, it is only in the last ten years that advancements have allowed them to become competitive with more traditional types of lighting equipment. Modern LEDs now rival their traditional counterparts in lumens per watt, and far surpass the traditional incandescent in both luminosity and efficiency. Their design produces illumination through a process called electroluminescence, where electrical energy is passed through a semi conducting material rather than through a filament. This creates light without the usual high temperatures associated with filament based bulbs, making LEDs an excellent choice for inclusion in hazardous location applications.


In spray booth rated units, LEDs are arranged in rows and fitted within tubes resembling traditional fluorescent fixtures. They are then mounted in similar fixtures and are installed and operated in the same manner as regular fluorescent lamps. The difference however is in the amount of energy used, and the lifespan of the lamps. The highest quality fluorescent lamps produce very good light, but at the expense of higher energy consumption. The longest lived fluorescents are rated at approximately 50,000 hours, but also require special ballast to achieve this rating and are a great deal more expensive than normal fluorescent lamps.


LEDs in contrast have an average lifespan of 50,000+ hours. They require no special ballast, and are highly energy efficient. The Larson Electronics EPL-48-2L-LED Explosion Proof LED light with 4 foot LED bulbs is an excellent example of the advancements in LED technology available for use in modern hazardous location lighting applications. Explosion Proof and rated both Class-1 Division-1 and Class-1 Division-2, this light produces 90 lumens of light per watt. It draws only a 3rd of the electrical energy a normal 60 watt T5HO fluorescent uses, making it significantly less expensive to operate. It is impact resistant, and the Pyrex tubes add reliable protection to an already solid unit. The entire assembly is mounted in the same manner as a traditional fluorescent fixture, but requires less space as there is no ballast attached to the unit, resulting in a slimmer profile and lighter weight.


In standard form, the Larson Electronics EPL-48-2L-LED operates at a color temperature of 4500 k, putting it somewhat higher on the CRI scale than a standard fluorescent fixture. Optional versions can be had that operate at 5600k or 6500k, putting the lamp well within the realm of higher output fluorescent lamps. Relamping is straightforward, and the unit uses screw down caps to secure the lamps within the unit, doing away with the common and less secure tap and knock off method more commonly found in traditional fluorescent spray booth lamps. The need for relamping is also reduced by the unit’s long life expectancy of 50,000+ hours, resulting in a lamp that will operate for years before needing servicing. Considered as a whole, the benefits in efficiency, longevity, and reliability found in the EPL-48-2L-LED demonstrate the improvements in explosion proof lamp technology that LEDs now represent.


While it is critical that properly rated lamps be used in hazardous applications such as spray booths, it is also important that the lights perform to the standards necessary to maintain quality and productivity. LEDs are now more than capable of performing to these standards, and represent the next step in the evolution of explosion proof lighting technology.


Related Categories/Products
Category/Product (click on link below for more information)
Intrinsically Safe Lights
Explosion Proof LED Lights
Explosion Proof Paint Spray Booth Approved Lights
Intrinsically Safe Blower (Ventilator) 25 foot Static Conductive Duct Redirects Stale Work Area Air
Intrinsically Safe Flashlight - Rechargeable LED Flashlight with Spot and Flood Beams
Explosion Proof Pen Light - Class I Division 1 Groups A, B, C & D - 11 Lumens - 24 Hour Runtime
Explosion Proof LED Paint Spray Booth light - Class 1 Div 1 - Class 1 Div 2 - T6 - 7,000 Lumens
Intrinsically Safe LED Trouble Light - Convenient Hanging Hook and Belt Ring - Spot & Flood - Rechar
Intrinsically Safe LED Penlight - 50 Lumens - 13.75 Hr. Runtime - C1D1 & C2D1 - (3) AAAA Batteries
Explosion Proof Paint Spray Booth LED Lighting - 2 Foot, 2 Lamp Fixture - Class 1, Div. 1
Explosion Proof LED Lights for Paint Spray Booth - Class 1 & 2 Division 1 - 4 Foot 4 Lamp - T6 Temp
*RENTAL* Intrinsically Safe Blower (Fan) - Runs off Air Compressor - Class I, II, & III - 25' Duct
Replacement Battery for EXPRL-95 and EXPRL-96 series intrinsically safe lights
Replacement Charger for EXPRL-95 and EXPRL-96 series intrinsically safe lights
Replacement Battery Charger for the XPR-9863E model Intrinsically Safe Flashlights
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