400 Watt Square Explosion Proof LED Light | 56000 Lumens | Class 1 Div 2 | 5000K | 100V-277V or 277V-480V
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
ATEX Marking
- II 2 G Ex eb mb IIC T5…T6 Gb
- II 2 D Ex tb IIIC T80°C…T100°C Db
IECEx Marking
- Ex eb mb IIC T5…T6 Gb
- Ex tb IIIC T80°C…T100°C Db
Key Features
| Brand | LED Lighting Supply |
| Watts | 400 |
| Lumens | 56000 |
| 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 |
| IK Rating | IK10 |
| Surge Protection | 10kV |
| Operating Temperature | -40°F to 122°F |
| Certifications | ETL | Rebate Eligible |
| Warranty | 5 years |
Measurements
| Dimensions (in) | 16.6 X 11.8 X 8.3 |
| Weight (lbs) | 36 |
Product SKU Variations
- SKU: MLLG-E-LED-EXPLA-400-50-C1D2
- SKU: MLLG-E-LED-EXPLA-400-50-HV-C1D2
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 400-watt square explosion proof LED light delivers 56,000 lumens at 5000K for hazardous location lighting where high output and classified protection are required. It is configured for Class I, II, and III hazardous locations and uses a tempered glass lens.
The fixture is used for hazardous location lighting, explosion proof lighting, paint booth lighting, and chemical processing facility lighting. Its 400-watt output is also listed as a replacement for 1000-watt metal halide fixtures.
Core Performance and Output
The fixture produces 56,000 lumens at 140 lumens per watt with a 70+ CRI and 5000K color temperature. It operates on 100V-277V or 277V-480V input at 50-60Hz, with power factor above 0.95 and THD below 10%.
A 120 degree beam angle is standard. Optional 40 degree, 60 degree, and 90 degree beam angles allow the distribution to match the layout. The 56,000-lumen output can be excessive where mounting height is low or the lighted area is limited.
Adjustability and Control Options
1-10V dimming is available for installations using compatible dimming controls. Dimming can be used where the required light level varies by operating condition.
Optical selection is available through 40 degree, 60 degree, 90 degree, and standard 120 degree beam angles. The beam angle should be established before installation because it affects distribution and fixture layout.
Longevity and Reliability
This fixture is rated for 50,000 L70 hours and includes 10kV surge protection. The operating temperature range is -40 degrees F to 122 degrees F.
The rated service life and surge protection support long-term operation in demanding classified environments. Maintenance access should account for the 36-pound fixture weight and selected mounting arrangement.
Build Quality and Physical Characteristics
The housing is copper-free aluminum with a gray finish. The tempered glass lens protects the optical assembly, and the fixture is rated IP66 and IK10.
Fixture dimensions are 16.6 by 11.8 by 8.3 inches. Mounting is available with a yoke or 3/4 inch NPT pendant connection.
Where This Product Fits Best
This fixture fits classified locations requiring high-output illumination, wet-location suitability, and durable construction. Its available hazardous-location markings support installations with gases, vapors, dusts, and fibers covered by the listed classifications.
- hazardous location lighting
- explosion proof lighting
- chemical processing facility lighting
- paint booth lighting
- oil and gas facility lighting
- refinery lighting
- marine environment lighting
IP66, IK10, UL 1598 wet-location suitability, and UL 1598A Marine Outside Type support demanding environmental conditions. The final location must match the fixture’s listed Class, Division, Group, ATEX, or IECEx marking as applicable.
Installation and Long-Term Use
The fixture can be installed using the yoke mount or 3/4 inch NPT pendant mount. The mounting structure and connection method must support the 36-pound fixture.
Input voltage must match the selected 100V-277V or 277V-480V configuration. Long-term service planning should retain access to the lens, mounting connection, and electrical components.
How This Fixture Is Commonly Used
In hazardous location lighting and explosion proof lighting layouts, mounting height is established from the site conditions, required light levels, selected optic, and classified-area requirements. Yoke mounting supports directional positioning, while pendant mounting places the fixture below the mounting structure.
Paint booth lighting and chemical processing facility lighting layouts use the available beam angles to control distribution across the required area. A narrower optic can concentrate output, while the 120 degree optic distributes light across a wider area.
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. ATEX. IECEx. ETL. Rebate Eligible.
The fixture includes a 5-year warranty.
Frequently Asked Questions
Q: What is the output of this explosion proof LED light?
A: The fixture uses 400 watts and produces 56,000 lumens at 5000K.
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 options are available?
A: The fixture is available with yoke mounting or 3/4 inch NPT pendant mounting.
Q: What should be reviewed when planning the fixture layout?
A: Mounting height, required light levels, selected beam angle, and the classified-area requirements affect the layout. The supplied product data does not establish a specific spacing value or fixture quantity.
Application Questions and Clarification
Q: Is this fixture suitable for paint booth lighting?
A: Paint booth lighting is a listed primary application. The installation must match the applicable hazardous-location classification and fixture marking.
Q: Can this fixture be used for marine environment lighting?
A: Marine environment lighting is a listed secondary application. The fixture is UL 1598A Marine Outside Type, IP66, and has a copper-free aluminum housing.
Q: What voltage information is needed before installation?
A: The available voltage configurations are 100V-277V and 277V-480V. The site voltage must match the selected fixture configuration.
Web ID: 1835
