Need help choosing the right Product?
Get expert recommendations and a custom lighting plan within 1 day! Get Product Recommendations ➜
You may also like...
-
200 Watt LED High Temperature Light | 26000 Lumens | 5000K | 100V-277V or 277V-480V | Rated to 176F
100V-277V:58 In StockShips 2-3 Days277V-480V:Built to Order 6 WeeksRetail Price: $870.24 -
300 Watt LED High Temperature Light | 39000 Lumens | 5000K | 100V-277V or 277V-480V | Rated to 176F
100V-277V:Built to Order 6 Weeks277V-480V:Built to Order 6 WeeksRetail Price: $1,305.20 -
450 Watt LED High Temperature Light | 58500 Lumens | 5000K | 100V-277V or 277V-480V | Rated to 176F
100V-277V:Built to Order 8 Weeks277V-480V:Built to Order 8 WeeksRetail Price: $1,816.62 -
300 Watt LED High Temperature Light | 45000 Lumens | 5000K | 100-277V | Rated to 212F
Built to Order 8 WeeksRetail Price: $3,108.65
400 Watt LED High Temperature Light | 52000 Lumens | 5000K | 100V-277V or 347V-480V | Rated to 194F
Product Description
The 400 watt high temperature LED Fixture work operates in temperatures . The fixture is designed with a large heat sink. The fixture is designed for both extreme hot and cold temperatures.
Key Features
- Watts: 400
- Lumens: 52000
- Lumens Per Watt: 130
- Replaces: 1000 Watt Metal Halide
- Voltage: 100V-277V or 347V-480V
- Color Temperature: 4000K or 5000K
- CRI: 80+
- Dimming: No
- Beam Angles (Opt): 10° or 25° or 40° or 90° or 120°
- Optics: Polycarbonate Lens
- Lifespan: 70,000 hours
- Mounting: Eye-Hook or Pendant
- Fixture Color: Gray
- Frequency: 50/60 hz
- Power Factor: > .95
- THD: < 15%
Durable Construction
- Housing: Aluminum Alloy
- IP Rating: IP66
- Operating Temperature: -40°F to 194°F
- Certifications: ETL
- Warranty: 5 years
Measurements
- Dimensions: 22 X 20.86 X 8.65 in
- Weight: 45.8 lbs
Product SKU Variations
- SKU: MLLG-LS-LED-HB-400-50-60-HT
- Voltage: 100V-277V
- SKU: MLLG-LS-LED-HB-400-50-60-HT-HV
- Voltage: 347V-480V
Request IES Files
Web ID: 1327
Product Overview
This 400 watt LED high temperature fixture delivers 52,000 lumens at 130 lumens per watt and serves as a direct replacement for 1000 watt metal halide systems. The aluminum alloy housing incorporates a large heat sink designed to manage thermal loads across an extended operating temperature range from -40°F to 194°F.
The fixture is available in two voltage configurations: 100V-277V or 347V-480V. Color temperature options include 4000K or 5000K, with a CRI of 80+ across both options. Five beam angle options are available: 10°, 25°, 40°, 90°, and 120°, using polycarbonate lens optics.
Mounting options include eye-hook or pendant configurations. The fixture measures 22 x 20.86 x 8.65 inches and weighs 45.8 lbs. Housing color is gray.
Where This Product Fits Best
This fixture is built for environments where ambient temperatures reach extremes that would compromise standard LED high bays. The 194°F upper rating makes it suitable for foundries, steel mills, glass manufacturing, forging operations, and industrial processes where radiant heat from machinery or materials creates sustained high-temperature conditions near ceiling level.
The -40°F lower rating supports cold storage, freezer warehouses, and outdoor covered installations in extreme climates. The IP66 rating allows use in locations exposed to high-pressure water cleaning, dust, and airborne particulates common in heavy industrial and food processing environments.
The 1000 watt metal halide replacement class positions this fixture for facilities upgrading legacy HID systems in high-output applications where maintaining light levels is critical.
Performance and Functional Considerations
At 52,000 lumens from 400 watts, this fixture produces substantial output for large-area or high-ceiling applications. The 130 lumens per watt efficacy reflects the thermal management tradeoffs required to operate reliably at elevated temperatures.
The five beam angle options?10°, 25°, 40°, 90°, and 120°?allow the fixture to be configured for narrow-beam spot applications or wide-area general illumination depending on mounting height and coverage requirements. The polycarbonate lens provides impact resistance appropriate for industrial environments.
This fixture does not support dimming. Power factor exceeds 0.95 and total harmonic distortion is below 15%, supporting stable operation on facility electrical systems. Operating frequency is 50/60 Hz.
Installation and Long-Term Use
Mounting is accomplished via eye-hook or pendant, both suited to chain or rigid stem suspension common in industrial ceiling structures. At 45.8 lbs, the fixture requires adequate structural support and typically a two-person installation.
The aluminum alloy housing and integrated heat sink are designed to dissipate heat continuously across the full operating temperature range. The 70,000-hour rated lifespan provides long service intervals in applications where fixture access for maintenance is difficult or costly.
The IP66 rating allows direct exposure to high-pressure water jets and heavy dust without enclosure degradation. Electrical connections must be made in accordance with the specified voltage range for the installed unit.
How This Fixture Is Commonly Used
Facilities replacing aging metal halide systems in high-heat environments use this fixture to maintain output levels while reducing energy consumption and eliminating restrike delays. The beam angle selected at time of installation determines whether the fixture serves as a narrow spot for task-specific illumination or a wide flood for general area coverage.
In cold storage applications, the fixture operates continuously without warm-up limitations that affect some lighting technologies in sub-zero conditions. The sealed IP66 construction allows washdown cleaning without disconnecting or protecting the fixture.
Safety, Certifications, and Warranty
This fixture is ETL listed. The IP66 rating allows exposure to powerful water jets and complete protection against dust ingress.
LED Lighting Supply provides a 5-year warranty on this fixture.
Frequently Asked Questions
What voltage options are available?
This fixture is available in 100V-277V or 347V-480V configurations.
What does this fixture replace?
It serves as a replacement for 1000 watt metal halide systems.
What is the maximum operating temperature?
The fixture is rated to operate at ambient temperatures up to 194°F and as low as -40°F.
Is this fixture dimmable?
No, this fixture does not support dimming.
What beam angles are available?
Five options are available: 10°, 25°, 40°, 90°, and 120°.
What is the warranty period?
This fixture carries a 5-year warranty.
Application Questions and Clarification
This product description reflects the provided specifications, ratings, and configuration options. For questions related to site-specific conditions, electrical compatibility, control integration, or application requirements not addressed in the provided data, our team is available to provide clarification.






