400 Watt Round 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 3 G Ex ec IIC T6…T3 Gc
- II 2 D Ex tb IIIC T85°C…T103°C Db
IECEx Marking
- Ex ec IIC T6…T3 Gc
- Ex tb IIIC T85°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 |
| 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-400-50-C1D2
- SKU: MLLG-E-LED-EXPLB-400-50-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 400W round explosion proof LED light delivers 56,000 lumens at 5000K for hazardous location lighting. Its Class I, II, and III ratings support installation where the applicable classification matches the fixture listing.
The fixture is configured for yoke mounting or 3/4 in NPT pendant mounting. It is a 1000W metal halide replacement option for higher-output hazardous location layouts.
Core Performance and Output
The fixture operates at 400W and produces 56,000 lumens at 140 lumens per watt. Standard distribution is 120 degrees, with 40, 60, and 90 degree optics available for more controlled layouts.
Input voltage is available in 100V-277V or 277V-480V configurations. Power factor exceeds 0.95, THD is below 10%, and operating frequency is 50-60Hz.
The 120 degree distribution can create excessive overlap where mounting heights are low. Narrower optics provide greater directional control but require layout review to maintain uniform coverage.
Adjustability and Control Options
This fixture supports 1-10V dimming. Dimming wiring and controls must match the selected voltage configuration and project control system.
Optic selection includes 40, 60, 90, and 120 degree distributions. The yoke mount allows directional aiming, while the 3/4 in NPT pendant mount supports a fixed downward installation.
Longevity and Reliability
Rated life is 50,000 hours L70. The fixture includes 10kV surge protection for electrical transient protection.
Operating temperature range is -40F to 140F. Long-term performance depends on maintaining the rated enclosure, mounting method, wiring entries, and applicable hazardous-location installation requirements.
Build Quality and Physical Characteristics
The housing is copper free aluminum with a gray finish. A tempered glass lens protects the optical assembly.
The fixture is IP66 rated. Overall dimensions are 18.9 by 15.5 inches, and fixture weight is 37.5 pounds.
Where This Product Fits Best
This fixture fits classified industrial and process environments requiring high output, sealed construction, and hazardous-location ratings. It also fits wet and marine-related installations where the project classification and installation conditions align with the fixture markings.
- hazardous location lighting
- paint booth lighting
- chemical processing facility lighting
- oil and gas facility lighting
- refinery lighting
- marine environment lighting
- wastewater treatment lighting
IP66 protection, copper free aluminum construction, tempered glass, and operation from -40F to 140F support demanding environmental conditions. The applicable Class, Division, Group, ATEX, or IECEx marking must match the classified area.
Installation and Long-Term Use
Install the fixture with either the yoke or 3/4 in NPT pendant mounting method. The 37.5-pound fixture weight requires a mounting structure and hardware capable of supporting the installed assembly.
Verify the selected voltage configuration before connection. Maintain approved wiring methods, enclosure integrity, and the applicable hazardous-location requirements throughout installation and service.
For long-term use, inspect the lens, mounting hardware, cable entries, and fixture condition during scheduled maintenance. Replacement or service work should preserve the fixture’s rated installation configuration.
How This Fixture Is Commonly Used
In hazardous location lighting, paint booth lighting, chemical processing facility lighting, and refinery lighting, the fixture is mounted at a height that supports the required distribution and maintained light levels. Pendant mounting is commonly used for downward layouts, while yoke mounting supports aimed coverage.
Layouts use the 120 degree distribution for broad coverage or narrower optics where directional control is needed. Spacing and mounting height vary with the selected optic, target light levels, and physical layout.
Higher output can reduce fixture count in a layout, but it can also increase glare or overlap when mounting height and optic selection are not coordinated.
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. Rebate eligible.
ATEX: II 3 G Ex ec IIC T6…T3 Gc; II 2 D Ex tb IIIC T85C…T103C Db. IECEx: Ex ec IIC T6…T3 Gc; Ex tb IIIC T85C…T100C Db.
Warranty is 5 years.
Frequently Asked Questions
Q: What is the light output of this explosion proof fixture?
A: The fixture produces 56,000 lumens at 400W, with an efficacy of 140 lumens per watt.
Q: What voltage configurations are available?
A: The fixture is available in 100V-277V or 277V-480V configurations.
Q: Can this fixture be dimmed?
A: Yes. It supports 1-10V dimming.
Q: Which mounting methods are available?
A: The fixture is available with yoke mounting or 3/4 in NPT pendant mounting.
Q: What information affects optic selection for a lighting layout?
A: The fixture has 40, 60, 90, and 120 degree beam angle options. Mounting height, target light levels, and layout requirements affect optic selection.
Application Questions and Clarification
Q: Can this fixture be used for paint booth lighting?
A: Paint booth lighting is a valid application. The applicable area classification must match the fixture’s listed Class, Division, Group, ATEX, or IECEx marking.
Q: What should be reviewed for marine environment lighting?
A: Marine environment lighting is a valid application. The fixture is UL 1598A Marine Outside Type, ABS, and IP66 rated.
Q: What should be confirmed before using this fixture in hazardous location lighting?
A: Confirm the area classification, voltage configuration, mounting method, optic, mounting height, and layout requirements. The supplied product data does not establish a specific spacing or mounting height.
Web ID: 1837
