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400 Watt LED High Temperature Light | 52000 Lumens | 5000K | 100V-277V or 347V-480V | Rated to 194F

SKU: MLLG-LS-LED-HB-400-[Color]-HT-[V] Web ID: 1327
Starting at: $4,016.05
100V-277V:Built to Order 8 Weeks
347V-480V:Built to Order 8 Weeks
This 400W high-temperature high bay suits demanding industrial installations, delivering 52,000 lumens at 130 lm/W while replacing 1000W metal halide fixtures. Its -40F to 194F operating range, IP66 aluminum alloy construction, ETL listing, and 70,000-hour lifespan support use in power plants, nuclear facilities, and other hot, dusty, or wet industrial areas. Multiple beam angles and eye-hook or pendant mounting help match light distribution and installation needs.

Cory Peterson | VP of Marketing and Sales Operations

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Product Specifications

ETL Listed - Certified for Product Safety Compliance to North American StandardsHigh Temperature Rated - Reliable Operation in Elevated Heat Conditions5 Year Unlimited Usage Warranty

Key Features

BrandLED Lighting Supply
Watts400
Lumens52000
Lumens Per Watt130
Replaces1000 Watt Metal Halide
Voltage100V-277V or 347V-480V
Color Temperature4000K or 5000K
CRI80+
DimmingNo
Beam Angles (Opt)10° or 25° or 40° or 90° or 120°
OpticsPolycarbonate Lens
Lifespan70,000 hours
MountingEye-Hook or Pendant
Fixture ColorGray
Frequency (Hz)50/60
Power Factor> .95
THD< 15%

Durable Construction

HousingAluminum Alloy
IP RatingIP66
Operating Temperature-40°F to 194°F
CertificationsETL
Warranty5 years

Measurements

Dimensions (in)22 X 20.86 X 8.65
Weight (lbs)45.8

Product SKU Variations

  • SKU: MLLG-LS-LED-HB-400-50-60-HT
  • SKU: MLLG-LS-LED-HB-400-50-60-HT-HV

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

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Estimated Results

Fixtures --
Layout --
Estimated Avg FC --
Approx. Spacing --
Fixture Offset --
Calculation Method: --
Top-Down Fixture Layout Fixture positions and estimated floor light levels
Lower estimated FC Near target Higher estimated FC

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.

Need Verified Light Levels?

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.

Estimator Version 2.9.21

Product Overview

This 400W LED high temperature light delivers 52,000 lumens for facilities with elevated ambient temperatures. It is available in 4000K or 5000K and operates on either 100-277V or 347-480V electrical systems.

Rated for ambient operating temperatures from -40F to 194F, this fixture is suited to high temperature facility lighting where standard high bays may not be appropriate. It replaces 1000W metal halide fixtures.

Core Performance and Output

The fixture produces 130 lumens per watt with an 80+ CRI. Available beam angle options include 10, 25, 40, 90, and 120 degrees, allowing the optical distribution to be selected for the lighting layout.

A polycarbonate lens protects the optics. The fixture operates at 50/60 Hz with a power factor greater than .95 and THD below 15%.

Adjustability and Control Options

This high temperature light is not dimmable. Select the required voltage, color temperature, and beam angle during fixture selection.

Longevity and Reliability

The LED system is rated for 70,000 hours of life. Its aluminum alloy housing, IP66 rating, and -40F to 194F operating range support use in demanding high-temperature environments.

Build Quality and Physical Characteristics

The gray aluminum alloy fixture measures 22 x 20.86 x 8.65 inches and weighs 45.8 lb. Eye-hook and pendant mounting options are available.

Where This Product Fits Best

This fixture is intended for industrial and energy-related spaces where high ambient temperatures are a primary equipment consideration.

  • high temperature facility lighting
  • industrial furnace area lighting
  • steel mill lighting
  • foundry lighting
  • power plant and energy site lighting
  • nuclear facility lighting
  • kiln lighting
  • boiler room lighting

Safety, Certifications, and Warranty

This fixture is ETL certified and carries a 5-year warranty.

Frequently Asked Questions

Q: What voltage options are available for this 400W high temperature light?

A: This 400W high temperature light is available in 100-277V or 347-480V versions.

Q: Is this high temperature LED light dimmable?

A: No, this high temperature LED light is not dimmable.

Q: What beam angles are available?

A: This fixture is available with 10, 25, 40, 90, or 120 degree beam angle options.

Web ID: 1327

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