300 Watt LED High Temperature Light | 39000 Lumens | 5000K | 100V-277V or 277V-480V | Rated to 176F
Dwayne Kula | President, CTO and Founder
Out of stock
Product Specifications
Key Features
| Brand | LED Lighting Supply |
| Watts | 300 |
| Lumens | 39000 |
| Lumens Per Watt | 130 |
| Replaces | 1000 Watt Metal Halide |
| Voltage | 100V-277V or 277V-480V |
| Color Temperature | 5000K |
| CRI | 70+ |
| Dimming | No or 1-10V |
| 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) | 26.9 X 14.4 X 9.6 |
| Weight (lbs) | 42.55 lbs |
Product SKU Variations
- SKU: MLLG-LED-HT80-300-50-90
- SKU: MLLG-LED-HT80-300-50-90-HV
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 300-watt LED high temperature light is built for industrial areas exposed to sustained heat. It produces 39,000 lumens at 5000K and operates in ambient temperatures from -40F to 176F.
The fixture is used for high temperature facility lighting, industrial furnace area lighting, steel mill lighting, foundry lighting, power plant and energy site lighting, and nuclear facility lighting. It can replace a 1000-watt metal halide fixture where the existing installation requires high output and heat-tolerant construction.
Core Performance and Output
This fixture delivers 39,000 lumens from 300 watts, producing 130 lumens per watt. It operates on 100V-277V or 277V-480V, with a 0.95 power factor, 50/60 Hz operation, and maximum THD of 20%.
A 90 degree beam angle is standard. Optional 30 degree, 110 degree, and 150 degree optics support different distribution requirements. The 30 degree optic concentrates output for longer throws, while wider optics spread light across broader work areas.
At lower mounting heights, 39,000 lumens can create excessive brightness if fixture placement is not controlled. Higher mounting locations require layout review to maintain uniformity at work and equipment levels.
Adjustability and Control Options
The fixture is available with no dimming or 1-10V dimming. The dimming configuration must match the control approach used in the installation.
Available beam angles allow the fixture to be configured around concentrated equipment areas or broader industrial spaces. Optical selection affects fixture placement, light distribution, and glare control.
Longevity and Reliability
The LED system is rated for 100,000 L70 hours. This rating supports long operating periods in high temperature environments where fixture access may be limited.
Integrated 12kV surge protection helps protect the fixture from electrical surge events. The operating temperature range extends to 176F for heat-intensive industrial locations.
Build Quality and Physical Characteristics
The housing is die-cast aluminum with a gray finish. A polycarbonate lens protects the optical system.
The fixture measures 26.9 x 14.4 x 9.6 inches and weighs 42.55 pounds. Eye-hook and trunnion mounting configurations are available, and the supporting structure must accommodate the fixture weight and mounting method.
Where This Product Fits Best
This fixture fits industrial environments where elevated ambient temperature, high output requirements, and durable enclosure construction are central operating conditions.
- power plant and energy site lighting
- steel mill lighting and foundry lighting
- industrial furnace area lighting
- high temperature facility lighting
- boiler room lighting
- heat treatment facility lighting
Its IP66 rating, IK10 rating, die-cast aluminum housing, and 176F maximum operating temperature support demanding high temperature locations. Final placement should account for actual ambient temperature at the fixture location.
Installation and Long-Term Use
Eye-hook mounting supports suspended installation, while trunnion mounting supports directional aiming. The selected mounting method affects fixture orientation, service access, and aiming adjustment.
Installers must confirm the available voltage matches the selected 100V-277V or 277V-480V configuration. Long-term maintenance should include inspection of mounting hardware, lens condition, and electrical connections.
How This Fixture Is Commonly Used
In power plant and energy site lighting, steel mill lighting, and foundry lighting, fixtures are positioned above heat-producing processes or equipment areas where conventional fixtures may not tolerate the ambient temperature. Mounting height is determined by the structure, heat conditions, target light levels, and beam angle selected.
Industrial furnace area lighting, boiler room lighting, and heat treatment facility lighting commonly use aimed or suspended fixture layouts to direct output around equipment and work zones. Wider optics can reduce fixture concentration, while narrower optics provide more focused distribution.
Safety, Certifications, and Warranty
This fixture is ETL listed. It is rated IP66 and IK10.
The fixture includes 12kV surge protection and a 5-year warranty. Operating temperature is rated from -40F to 176F.
Frequently Asked Questions
Q: What is the light output of this fixture?
A: This fixture produces 39,000 lumens at 300 watts, with an efficacy of 130 lumens per watt.
Q: What voltage options are available?
A: Available voltage configurations are 100V-277V and 277V-480V.
Q: What mounting options are available?
A: The fixture is available with eye-hook or trunnion mounting.
Q: What beam angles are available?
A: The standard beam angle is 90 degrees. Optional beam angles are 30 degrees, 110 degrees, and 150 degrees.
Q: What should be considered when planning fixture placement?
A: Mounting height, target light levels, beam angle, and layout requirements affect fixture placement. A specific spacing value is not established by the supplied product data.
Application Questions and Clarification
Q: Is this fixture intended for high temperature facility lighting?
A: Yes. The fixture is rated for operating temperatures from -40F to 176F and is identified for high temperature facility lighting.
Q: Can this fixture be used for industrial furnace area lighting?
A: Industrial furnace area lighting is a listed application. Actual ambient temperature at the fixture location must remain within the -40F to 176F operating range.
Q: What should be reviewed for power plant and energy site lighting?
A: Review the available voltage, mounting method, beam angle, mounting height, target light levels, and ambient temperature at the fixture location.
Web ID: 1321
