300 / 400 / 500 Watt Adjustable UFO High Bay | 44900 to 79100 Lumens | 4000K / 5000K | 100-277V
This adjustable 300/400/500W UFO high bay lets buyers match output from 44,900 to 79,100 lumens and select 4000K or 5000K for changing facility needs. Its 90 degree beam, 0-10V dimming, eye-hook mounting, and 100-277V operation suit gymnasiums and manufacturing facilities. IP65 and IK08 ratings, aluminum housing, 6kV surge protection, and operation from -22F to 122F support demanding indoor or covered industrial environments.
Dwayne Kula | President, CTO and Founder
136 in stock
Product Specifications
Key Features
| Brand | LED Lighting Supply |
| Watts | 300 | 400 | 500 |
| Lumens | 44900 | 62000 | 79100 |
| Lumens Per Watt | 155 |
| Replaces | 1500 or 2000 Watt Metal Halide |
| Voltage | 100V-277V |
| Color Temperature | 4000K or 5000K |
| CRI | 80+ |
| Dimming | 0-10V |
| Beam Angles (Std) | 90° |
| Optics | Polycarbonate Lens |
| Lifespan | 170,000 (L70) hours |
| Mounting | Hook |
| Fixture Color | Black |
| Frequency (Hz) | 50/60 |
| Power Factor | .95 |
| THD | 20% |
Durable Construction
| Housing | Aluminum Alloy |
| IP Rating | IP65 |
| IK Rating | IK08 |
| Surge Protection | 6kV |
| Operating Temperature | -22°F to 122°F |
| Certifications | ETL | Rebate Eligible |
| Warranty | 5 years |
Measurements
| Dimensions (in) | 17.7 W X 10.6 H |
| Weight (lbs) | 14.5 |
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 UFO LED high bay provides adjustable 300W, 400W, or 500W operation with selectable 4000K or 5000K color temperature. It delivers 44,900 to 79,100 lumens for high-output indoor lighting installations and can replace 1500W or 2000W metal halide fixtures.
The round fixture uses a hook mounting configuration and a 90-degree beam angle for broad downward illumination from elevated mounting locations.
Core Performance and Output
At 155 lumens per watt, this high bay delivers 44,900 lumens at 300W, 62,000 lumens at 400W, and 79,100 lumens at 500W. The selectable wattage and color temperature options allow the fixture configuration to match project lighting requirements.
The fixture operates on 100-277V, 50/60 Hz power and supports 0-10V dimming. It has an 80+ CRI, 0.95 power factor, and 20% THD.
Longevity and Reliability
This UFO high bay is rated for 170,000 L70 hours and operates in ambient temperatures from -22 degrees F to 122 degrees F. It includes 6kV surge protection for electrical transient resistance.
The aluminum alloy housing carries IP65 and IK08 ratings. A polycarbonate lens protects the optical system.
Build Quality and Physical Characteristics
The black aluminum alloy fixture measures 17.7 inches wide by 10.6 inches high and weighs 14.5 pounds. Its compact round form supports hook-mounted high-bay installations.
Where This Product Fits Best
This adjustable UFO high bay is suited to high-ceiling spaces requiring substantial light output, hook mounting, and selectable wattage and color temperature.
- warehouse lighting
- manufacturing facility lighting
- distribution center lighting
- gymnasium lighting
- aircraft hangar lighting
- indoor sports facility lighting
- basketball court lighting
- convention center lighting
Safety, Certifications, and Warranty
This fixture is ETL listed and rebate eligible. It is backed by a 5-year warranty.
Frequently Asked Questions
Q: What mounting method does this UFO high bay use?
A: This UFO high bay uses a hook mounting configuration.
Q: What are the dimensions and weight of this high bay?
A: This UFO high bay measures 17.7 inches wide by 10.6 inches high and weighs 14.5 pounds.
Web ID: 2663