250 Watt Explosion Proof Round LED Light | 35000 Lumens | Class 1 Div 2 | 5000K | 100V-277V or 277-480V
This 250 watt explosion proof round LED fixture is a strong choice for hazardous and industrial environments requiring reliable, high-output lighting. Delivering 35,000 lumens at 5000K, it efficiently replaces 1000 watt metal halide systems, reducing energy and maintenance demands. Its UL 844 hazardous location certifications, IP66 rating, and UL 1598A marine suitability ensure safe operation in areas exposed to flammable gases, dust, water, or harsh cleaning. The robust copper free aluminum housing and tempered glass lens withstand demanding conditions, while flexible mounting and beam angle options support varied layouts.
Dwayne Kula | President, CTO and Founder
Product Specifications
UL Specs
- UL 844 Hazardous Locations
- Class I, Division 2, Groups A, B, C, D
- Class II, Division 1, Groups E, F, G
- Class II, Division 2, Groups F, G
- Class III
- UL 1598 Suitable for Wet Locations
- UL 1598A Marine Outside Type
- ABS
Key Features
| Brand | LED Lighting Supply |
| Watts | 250 |
| Lumens | 35000 |
| Lumens Per Watt | 140 |
| Replaces | 1000 Watt Metal Halide |
| Voltage | 100V-277V or 277V-480V |
| Color Temperature | 5000K |
| CRI | 70+ |
| Dimming | 1-10V |
| Beam Angles (Std) | 120° |
| Beam Angles (Opt) | 40° or 60° or 90° |
| Optics | Tempered Glass Lens |
| Lifespan | 50,000 (L70) hours |
| Mounting | Yoke or 3/4 in NPT Pendant |
| Fixture Color | Gray |
| Frequency (Hz) | 50-60Hz |
| Power Factor | >.95 |
| THD | < 10% |
Durable Construction
| Housing | Copper Free Aluminum |
| IP Rating | IP66 |
| Surge Protection | 10kV |
| Operating Temperature | -40°F to 140°F |
| Certifications | ETL | Rebate Eligible |
| Warranty | 5 years |
Measurements
| Dimensions (in) | 18.9 X 15.5 |
| Weight (lbs) | 37.5 |
Product SKU Variations
- SKU: MLLG-E-LED-EXPLB-250-50-C1D2
- SKU: MLLG-E-LED-EXPLB-250-50-HV-C1D2
Download IES Files
Product Lighting Layout Estimator
Use this estimator to calculate approximate fixture count, spacing, and average foot-candles for a simple rectangular space using the selected LED fixture. Enter your room dimensions, mounting height, target foot-candles, light loss factor, and room/layout condition to generate a preliminary lighting layout. When IES photometry is available, workplane height and room reflectance controls are shown.
Project Inputs
Estimated Results
Estimated average foot-candles are preliminary and should be verified with a lighting plan for project-critical applications.
Room / Layout Condition: This field is used only when usable IES photometry is not available. In fallback mode, it acts as a simplified room utilization factor for reflectance, fixture distribution, racking, obstructions, and how much fixture light reaches the work area. Open / light-colored spaces use 0.90, typical warehouses or shops use 0.75, racked or obstructed spaces use 0.60, and dark or complex spaces use 0.45. When IES photometry is active, this field is hidden and the estimator uses the selected workplane height, LLF, and simplified reflectance adjustment instead.
Photometry / Simulation Note: When usable IES photometry is available for the selected fixture, this estimator uses the fixture’s IES candela data, selected workplane height, light loss factor, and simplified reflectance adjustment to estimate fixture count, average foot-candles, and visual light distribution. The reflectance adjustment is a conservative approximation and is not a full zonal-cavity, radiosity, or professional photometric room calculation. When IES photometry is not available, the estimator uses a simulated beam model based on lumens, mounting height, room/layout condition, light loss factor, and beam angle.
Preliminary Estimate Only: This estimator is intended for simple square or rectangular spaces and should be used as a planning aid, not a final photometric lighting plan. Actual light levels may vary based on fixture optics, selected IES file, mounting conditions, workplane height, ceiling height, surface reflectance, obstructions, controls, voltage, installation conditions, and site-specific requirements. Project-critical applications should be verified with a formal lighting plan.
This estimate is a starting point. Warehouses, industrial facilities, hazardous locations, sports areas, schools, healthcare spaces, public areas, and code-sensitive projects may require a reviewed lighting layout before purchase or installation.
Product Overview
This 250-watt round LED explosion proof light is designed for hazardous location lighting where a high-output fixture and classified-location construction are required. It produces 35,000 lumens at 5000K and is available in 100-277V or 277-480V configurations.
The fixture is rated for Class I, Division 2; Class II, Divisions 1 and 2; and Class III locations. It is commonly evaluated as a replacement for 1000-watt metal halide fixtures in hazardous location lighting and paint booth lighting.
Core Performance and Output
This fixture delivers 35,000 lumens at 140 lumens per watt. The standard 120-degree beam supports broad-area distribution, while 40-degree, 60-degree, and 90-degree optics are available where a more controlled pattern is required.
It operates on 50-60Hz power with a power factor above 0.95 and THD below 10%. The 250-watt output can be excessive at lower mounting heights where a narrower optic or lower output level is needed to control glare.
At greater mounting heights, optical selection and fixture layout affect uniformity across the illuminated area. The 5000K color temperature and 70+ CRI provide a cool white light output.
Adjustability and Control Options
1-10V dimming is provided for installations using compatible dimming controls. Dimming can be used where the lighting design requires output adjustment after commissioning.
The fixture is available with 100-277V or 277-480V input voltage. Voltage must match the electrical system serving the installation location.
Longevity and Reliability
The LED system is rated for 50,000 L70 hours. This rating identifies the point at which light output is expected to reach 70 percent of initial output.
10kV surge protection is integrated into the fixture. The operating temperature range is -40 degrees F to 140 degrees F.
Build Quality and Physical Characteristics
The housing is copper-free aluminum with a gray finish. A tempered glass lens protects the optical assembly.
This fixture measures 18.9 by 15.5 inches and weighs 37.5 pounds. Yoke mounting and 3/4-inch NPT pendant mounting are available.
Where This Product Fits Best
This fixture fits classified and hazardous operating areas requiring a high-output round fixture with wet-location and IP66 protection. Its hazardous-location classifications support use in the listed environments when the site classification matches the fixture rating.
- hazardous location lighting
- paint booth lighting
- chemical processing facility lighting
- explosion proof lighting
- oil and gas facility lighting
- refinery lighting
IP66 protection, copper-free aluminum construction, and the -40 degrees F to 140 degrees F operating range support demanding environmental conditions. UL 1598A Marine Outside Type and ABS ratings also apply.
Installation and Long-Term Use
Installers can use the yoke mount where fixture aiming is required or the 3/4-inch NPT pendant mount where the mounting arrangement uses threaded conduit. The mounting structure must support the 37.5-pound fixture weight.
Confirm the voltage configuration before installation. The fixture uses a tempered glass lens and requires access for inspection, cleaning, and long-term maintenance.
How This Fixture Is Commonly Used
In hazardous location lighting, paint booth lighting, and chemical processing facility lighting, mounting height is established by the lighting layout, target light levels, and the selected optic. The standard 120-degree distribution is used for wider coverage patterns, while optional optics provide more concentrated distribution.
Layouts typically position fixtures to maintain light distribution across the required work area without creating excessive overlap. Higher output can reduce fixture count, but spacing and optic selection still control glare and uniformity.
Safety, Certifications, and Warranty
UL 844 Hazardous Locations. Class I, Division 2, Groups A, B, C, D. Class II, Division 1, Groups E, F, G. Class II, Division 2, Groups F, G. Class III.
UL 1598 Suitable for Wet Locations. UL 1598A Marine Outside Type. ABS. ETL. IP66. The fixture includes a 5-year warranty.
Frequently Asked Questions
Q: What is the light output of this explosion proof fixture?
A: The fixture produces 35,000 lumens while operating at 250 watts.
Q: What beam angles are available?
A: The standard beam angle is 120 degrees. Optional 40-degree, 60-degree, and 90-degree beam angles are available.
Q: Can this fixture be dimmed?
A: Yes. The fixture supports 1-10V dimming.
Q: What mounting methods are available?
A: The fixture is available with yoke mounting or 3/4-inch NPT pendant mounting.
Q: What hazardous location classifications apply to this fixture?
A: The fixture is rated for Class I, Division 2, Groups A, B, C, D; Class II, Division 1, Groups E, F, G; Class II, Division 2, Groups F, G; and Class III.
Application Questions and Clarification
Q: Is this fixture applicable for paint booth lighting?
A: Paint booth lighting is a primary application for this explosion proof fixture. Final application fit depends on whether the site classification matches the fixture ratings.
Q: What should be reviewed when selecting an optic for hazardous location lighting?
A: Review the mounting height, lighting layout, target light levels, and required distribution pattern. The fixture is available with 40-degree, 60-degree, 90-degree, and 120-degree beam angles.
Q: Can this fixture be used for marine environment lighting?
A: Marine environment lighting is a valid secondary application. The fixture is rated UL 1598A Marine Outside Type, ABS, and IP66.
Web ID: 1961
