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250 / 375 / 500 Watt Adjustable UFO High Bay | 38700 to 76800 Lumens | 4000K / 5000K | 277-480V
This UFO high bay fixture is a strong choice for large commercial and industrial spaces needing high-output, efficient lighting, such as warehouses, manufacturing plants, and distribution centers. Its selectable wattage (250/375/500W) and color temperature (4000K/5000K) allow adaptation to varied tasks and layouts, while the 90-degree beam angle and up to 76,800 lumens ensure broad, uniform coverage in high-ceiling areas. The IP65 and IK08 ratings support use in dusty, wet, or moderately demanding environments, and 10kV surge protection adds electrical reliability. Due to its size and weight, careful planning is needed for overhead mounting or retrofits.
Dwayne Kula | President, CTO and Founder
62 in stock
Product Specifications
Key Features
| Brand | LED Lighting Supply |
| Watts | 250 | 375 | 500 |
| Lumens | 38700 | 58000 | 76800 |
| Lumens Per Watt | 155 |
| Replaces | 1500 or 2000 Watt Metal Halide |
| Voltage | 277V-480V |
| Color Temperature | 4000K or 5000K |
| CRI | 80+ |
| Dimming | 0-10V |
| Beam Angles (Std) | 90° |
| Optics | Polycarbonate Lens |
| Lifespan | 150,000 (L70) hours |
| Mounting | Eye-Hook or Yoke |
| 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 | 10kV |
| Operating Temperature | -22°F to 122°F |
| Certifications | ETL | Rebate Eligible |
| Warranty | 5 years |
Measurements
| Dimensions (in) | 19 W X 17 H |
| Weight (lbs) | 28 |
Features/Accessories
- Color Adjustable
- Wattage Adjustable
IES Files
Product Description
Key Features
- Brand: LED Lighting Supply
- Watts: 250 | 375 | 500
- Lumens: 38700 | 58000 | 76800
- Lumens Per Watt: 155
- Replaces: 1500 or 2000 Watt Metal Halide
- Voltage: 277V-480V
- Color Temperature: 4000K or 5000K
- CRI: 80+
- Dimming: 0-10V
- Beam Angles (Std): 90°
- Optics: Polycarbonate Lens
- Lifespan: 150,000 (L70) hours
- Mounting: Eye-Hook or Yoke
- 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: 10kV
- Operating Temperature: -22°F to 122°F
- Certifications: ETL | Rebate Eligible
- Warranty: 5 years
Measurements
- Dimensions (in): 19 W X 17 H
- Weight (lbs): 28
Features/Accessories
- Color Adjustable
- Wattage Adjustable
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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 light use factor to generate a preliminary lighting layout.
Project Inputs
Estimated Results
Estimated average foot-candles are preliminary and should be verified with a lighting plan for project-critical applications.
Room Light Use Factor: Suggested starting points: open warehouse 0.85–0.90, clean light-colored space 0.75–0.85, typical warehouse 0.65–0.75, racked or obstructed space 0.50–0.65, dark or complex space 0.40–0.55.
Photometry / Simulation Note: When usable IES photometry is available for the selected fixture, this estimator uses the fixture’s IES candela data to improve the visual floor-level light distribution. When IES photometry is not available, the estimator uses a simulated beam model based on lumens, mounting height, room light use factor, light loss factor, and beam angle.
Preliminary Estimate Only: This estimator is intended for simple square or rectangular spaces. Actual light levels may vary based on fixture optics, mounting conditions, ceiling height, surface reflectance, obstructions, controls, voltage, installation conditions, and site-specific requirements.
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
The 250 / 375 / 500 Watt Adjustable UFO High Bay is designed for high-performance lighting in large indoor spaces. This fixture offers adjustable wattage and color temperature, making it versatile for various lighting needs. It is suitable for replacing 1500 to 2000 Watt metal halide fixtures, providing a modern LED solution with significant energy savings. The fixture is ideal for environments with mounting heights ranging from 15 to 40 feet, commonly found in warehouses and manufacturing facilities.Core Performance and Output
This UFO High Bay delivers between 38,700 and 76,800 lumens, achieving an efficiency of 155 lumens per watt. It operates on a voltage range of 277-480V and offers a 90-degree beam angle for broad coverage. The fixture's output is adjustable, allowing for tailored lighting levels to suit specific applications. While it performs well at standard mounting heights, excessive output may occur at lower heights, potentially leading to increased glare.Adjustability and Control Options
The fixture features both wattage and color temperature adjustability, allowing users to select between 250, 375, and 500 watts and color temperatures of 4000K or 5000K. It supports 0-10V dimming for further control over light levels, enabling integration with advanced lighting control systems. These options provide flexibility in achieving desired lighting conditions across different applications.Longevity and Reliability
With a lifespan of 150,000 hours (L70), this high bay fixture offers long-term reliability, reducing maintenance needs and associated costs. The fixture is equipped with a 10kV surge protection, ensuring durability against electrical disturbances. Its robust design is suitable for continuous operation in demanding environments.Build Quality and Physical Characteristics
Constructed from aluminum alloy, the fixture is both lightweight and durable. It is IP65 rated for protection against dust and water ingress, and IK08 rated for impact resistance. The fixture's black finish and polycarbonate lens contribute to its sleek appearance and functional design. Operating temperatures range from -22°F to 122°F, making it suitable for various indoor environments.Where This Product Fits Best
This UFO High Bay is well-suited for large indoor spaces requiring high lumen output and energy efficiency. It is commonly used in environments such as:- warehouse lighting
- manufacturing facility lighting
- distribution center lighting
- gymnasium lighting
Installation and Long-Term Use
Installation options include eye-hook or yoke mounting, providing flexibility in fixture placement. The fixture's adjustable wattage and color temperature allow for customization to meet specific lighting needs. Over time, the fixture's robust construction and long lifespan contribute to reduced maintenance and operational costs.How This Fixture Is Commonly Used
Typically mounted at heights between 15 and 40 feet, this fixture is ideal for large open spaces. Spacing and layout patterns can vary based on the desired light levels and specific application requirements. Higher output settings can reduce the number of fixtures needed but may increase glare if not properly managed.Safety, Certifications, and Warranty
The fixture is ETL listed and rebate eligible, ensuring compliance with safety standards. It carries an IP65 rating for dust and water protection and an IK08 rating for impact resistance. A 5-year warranty provides assurance of the fixture's quality and reliability.Frequently Asked Questions
Q: What is the beam angle of this fixture?
A: The fixture has a standard beam angle of 90 degrees.
Q: Can this fixture be used in damp environments?
A: Yes, it is IP65 rated, making it suitable for damp environments.
Q: What are the mounting options available?
A: The fixture can be mounted using either an eye-hook or a yoke.
Q: How does the wattage adjustability work?
A: The fixture allows for wattage adjustment between 250, 375, and 500 watts.
Q: What is the expected lifespan of this fixture?
A: The fixture has a lifespan of 150,000 hours (L70).
Application Questions and Clarification
Q: Is this fixture suitable for gymnasium lighting?
A: Yes, it is commonly used in gymnasium lighting due to its high lumen output and efficiency.
Q: Can this fixture be used in a distribution center?
A: Yes, it is well-suited for distribution center lighting, providing ample illumination for large spaces.
Q: What is the recommended mounting height for this fixture?
A: The fixture is typically mounted at heights between 15 and 40 feet.
Q: Is this fixture appropriate for indoor sports facility lighting?
A: Yes, it is suitable for indoor sports facilities, including basketball and pickleball courts.
