Menu
Search Icon

450 Watt LED High Temperature Light | 58500 Lumens | 5000K | 100V-277V or 277V-480V | Rated to 176F

SKU: MLLG-LED-HT80-450-50-90-[V] | Web ID: 1322
Starting at: $1,973.75
100V-277V:Built to Order 8 Weeks
277V-480V:Built to Order 8 Weeks

The HT80-450 High Temperature Fixture is a perfect combination of high quality, value, powerful LED lighting rated for temperatures up to 176F.

Dwayne Kula | President, CTO and Founder

Out of stock

Product Description

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

  • Watts: 450
  • Lumens: 58500
  • Lumens Per Watt: 130
  • Replaces: 1000 Watt Metal Halide
  • Voltage: 100V-277V or 277V-480V
  • Color Temperature: 5000K
  • CRI: 70+
  • Dimming: No
  • Beam Angles (Std): 90°
  • Beam Angles (Opt): 30° or 110° or 150°
  • Optics: Polycarbonate Lens
  • Lifespan: 100,000 (L70) hours
  • Mounting: Eye-Hook or Trunnion
  • Fixture Color: Gray
  • Frequency (Hz): 50 / 60 hz
  • Power Factor: .95
  • THD: 20% Max

Durable Construction

  • Housing: Die-Cast Aluminum
  • IP Rating: IP66
  • IK Rating: IK10
  • Surge Protection: 12kV
  • Operating Temperature: -40°F to 176°F
  • Certifications: ETL
  • Warranty: 5 years

Measurements

  • Dimensions (in): 38.0 X 14.4 X 9.6 in
  • Weight (lbs): 61.7 lbs


Product SKU Variations

  • SKU: MLLG-LED-HT80-450-50-90
    • Voltage: 100V-277V
  • SKU: MLLG-LED-HT80-450-50-90-HV
    • Voltage: 277V-480V


Download IES Files

Web ID: 1322

Product Overview

This 450 Watt LED High Temperature Light is engineered for continuous operation in environments where ambient temperatures reach up to 176°F (80°C). The fixture is designed for high bay mounting in industrial settings where heat, dust, and airborne contaminants are present. Typical installations include power generation facilities, steel mills, and nuclear plants where legacy 1000W metal halide fixtures are being replaced for improved reliability and reduced maintenance.

The fixture?s die-cast aluminum housing, IP66 and IK10 ratings, and 12kV surge protection support long-term use in harsh, high-temperature environments. Eye-hook and trunnion mounting options allow for flexible installation on overhead structures, catwalks, or equipment platforms.

Core Performance and Output

This fixture delivers 58,500 lumens at 450 watts, providing 130 lumens per watt efficiency. The 5000K color temperature supports high-contrast visibility in industrial process areas. Standard beam angle is 90°, with optional 30°, 110°, and 150° optics for tailored distribution based on mounting height and task requirements.

Electrical performance includes a power factor of 0.95 and maximum THD of 20%. The fixture is available in 100-277V or 277-480V models for compatibility with industrial power systems. Excessive output may require increased mounting height or wider spacing to control glare in confined areas. Uniformity may decrease at mounting heights above 40 feet without custom optics.

Adjustability and Control Options

This model is supplied as a fixed-output fixture with no onboard dimming. Beam angle can be specified at order to match application needs. The fixture supports both eye-hook and trunnion mounting, allowing for orientation adjustment during installation.

No integrated controls or sensors are included. External control systems must be specified separately if required for the application.

Longevity and Reliability

The fixture is rated for 100,000 hours (L70) at maximum ambient temperature. The die-cast aluminum housing and polycarbonate lens are designed to withstand thermal cycling, vibration, and impact in heavy industrial environments.

12kV surge protection is included to guard against voltage spikes common in power generation and heavy manufacturing facilities. The fixture maintains full output and reliability at continuous ambient temperatures up to 176°F (80°C).

Build Quality and Physical Characteristics

The housing is constructed from heavy-duty die-cast aluminum with a gray finish. The fixture measures 38.0 x 14.4 x 9.6 inches and weighs 61.7 lbs. The polycarbonate lens provides impact resistance and optical clarity.

Ingress protection is rated at IP66 for dust and water resistance. IK10 impact rating supports use in areas with mechanical hazards. All hardware is designed for long-term durability in high-temperature, corrosive, or dusty environments.

Where This Product Fits Best

This fixture is intended for continuous use in high-temperature industrial environments where standard LED or HID fixtures fail due to heat exposure. It is suitable for mounting in process areas, equipment bays, and overhead structures in facilities with elevated ambient temperatures.

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

The fixture is designed for environments with high ambient heat, airborne particulates, and exposure to vibration or electrical surges. Not suitable for low ceiling or temperature-controlled spaces.

Installation and Long-Term Use

Mounting options include eye-hook for suspension from overhead structure or trunnion for surface or wall mounting. The fixture?s weight and size require secure attachment to structural steel or concrete. All wiring must be rated for high ambient temperatures.

Routine maintenance is minimized due to the sealed housing and long LED lifespan. Periodic inspection of mounting hardware and electrical connections is recommended in high-vibration or corrosive environments. The fixture is designed for continuous operation without the need for frequent relamping or cleaning.

How This Fixture Is Commonly Used

Typical mounting heights range from 25 to 45 feet, depending on the required light levels and beam angle selection. Spacing is determined by output, ceiling height, and process area layout. In open bays, fixtures are often spaced 1.2 to 1.5 times the mounting height for uniform coverage.

Higher output allows for reduced fixture count, but may increase glare if installed below 25 feet or in confined spaces. Beam angle selection should be matched to the area geometry to avoid shadowing or excessive overlap.

Safety, Certifications, and Warranty

This fixture is ETL certified. It carries an IP66 ingress protection rating and IK10 impact rating. Surge protection is rated at 12kV. The fixture is covered by a 5-year warranty.

All components are specified for continuous operation in ambient temperatures up to 176°F (80°C). No additional safety interlocks or thermal cutouts are required for standard installation.

Frequently Asked Questions

Q: What is the maximum ambient temperature this fixture can operate in?

A: The fixture is rated for continuous operation in environments up to 176°F (80°C).

Q: What mounting options are available?

A: Eye-hook and trunnion mounting options are provided for suspension or surface mounting.

Q: Is this fixture dimmable?

A: No, this model does not include dimming capability.

Q: What is the recommended mounting height for this fixture?

A: Typical mounting heights are 25 to 45 feet, depending on light level requirements and beam angle selection.

Q: How does the fixture handle electrical surges?

A: Integrated 12kV surge protection is included to protect against voltage spikes.

Q: What is the expected lifespan at maximum temperature?

A: The fixture is rated for 100,000 hours (L70) at 176°F (80°C) ambient temperature.

Q: How should I plan fixture spacing in a high bay environment?

A: Spacing is typically 1.2 to 1.5 times the mounting height for uniform coverage, but should be adjusted based on output, beam angle, and area geometry.

Application Questions and Clarification

Q: Can this fixture be used in a steel mill with high ambient dust and vibration?

A: Yes, the IP66 and IK10 ratings, along with the die-cast aluminum housing, support use in steel mills with dust and vibration.

Q: Is this fixture suitable for kiln or glass manufacturing areas?

A: The fixture is designed for continuous operation in high-temperature environments such as kilns and glass manufacturing facilities.

Q: Does the fixture require special wiring for high temperature areas?

A: All wiring should be rated for the maximum ambient temperature of the installation environment.

Q: Can this fixture replace a 1000W metal halide in a power plant?

A: Yes, this fixture is designed to replace 1000W metal halide fixtures in high-temperature power plant environments.