300 Watt UFO High Bay | 45000 Lumens | 5000K | 100-277V or 277-480V or 127-300VDC

Product Overview

This 300 Watt UFO High Bay delivers 45,000 lumens at 5000K, designed for high ceiling environments requiring robust, uniform illumination. The fixture operates on 100-277V, 277-480V, or 127-300VDC, supporting a range of commercial and industrial power systems. The die-cast aluminum housing, tempered glass lens, and IP65/IK08 ratings provide durability for demanding indoor applications. Dimming is supported via 1-10V controls, and the fixture is UL and DLC Premium listed.

The 16-inch diameter and 8-inch height allow for compact installation in spaces with limited overhead clearance. The fixture replaces 1000W metal halide units, offering significant energy and maintenance savings over legacy HID systems. Standard mounting is via eye-hook, with optional pendant or surface mount kits available for alternate installation requirements.

Where This Product Fits Best

This UFO high bay is intended for large, open indoor environments with mounting heights typically ranging from 20 to 40 feet. It is suited for facilities that require high-output, wide-distribution lighting to support safe operations, visibility, and productivity. The fixture?s construction and ratings make it appropriate for locations exposed to dust, humidity, and moderate impact risk.

• manufacturing facility lighting
• warehouse lighting
• distribution center lighting
• aircraft hangar lighting
• basketball court lighting
• indoor sports facility lighting
• metal building lighting
• convention center lighting

The fixture is suitable for environments with ambient temperatures from -22°F to 122°F. The IP65 rating protects against dust and water ingress, while IK08 impact resistance supports use in areas with occasional contact or vibration. The black finish and dome design provide a neutral appearance for a range of industrial and commercial interiors.

Performance and Functional Considerations

This fixture produces 150 lumens per watt, providing high efficiency for large-scale lighting projects. The 120° beam angle delivers broad, even coverage, minimizing shadowing and dark spots in open floor plans. The 70+ CRI supports accurate color rendering for general tasks and safety-critical operations.

The 1-10V dimming capability allows for integration with lighting controls, occupancy sensors, or daylight harvesting systems. The fixture?s power factor of 0.90 and THD below 20% meet typical requirements for commercial electrical systems. The 164,000-hour L70 lifespan reduces the frequency of relamping and associated maintenance.

Multiple voltage options (100-277V, 277-480V, 127-300VDC) accommodate a range of facility power infrastructures, including industrial DC systems. The tempered glass lens resists yellowing and maintains optical clarity over time.

Installation and Long-Term Use

Standard installation uses the included eye-hook for suspension from ceiling structure or unistrut. Optional pendant and surface mount kits are available for alternate mounting scenarios. The fixture weighs 21 lbs and measures 16 inches wide by 8 inches high, requiring appropriate support hardware for overhead installation.

A 5-foot power cord is provided for connection to junction boxes or conduit drops. The 8-inch dimming cord supports integration with control wiring. The fixture is designed for minimal maintenance, with no lamp or ballast replacements required during its rated life.

Routine cleaning of the lens and housing is recommended to maintain light output and thermal performance. The die-cast aluminum body provides effective heat dissipation, supporting long-term reliability in continuous operation environments.

How This Fixture Is Commonly Used

This 300W UFO high bay is typically installed in manufacturing plants, warehouses, and distribution centers with high ceilings and open layouts. It is also used in aircraft hangars and large metal buildings where wide-area illumination is required.

Facilities with indoor sports courts, such as basketball or multi-purpose gymnasiums, use this fixture to achieve uniform, glare-controlled lighting. Convention centers and event venues specify this model for exhibition halls and large assembly spaces.

The fixture is selected for projects where legacy 1000W metal halide or similar HID fixtures are being replaced to improve efficiency and reduce maintenance demands.

Safety, Certifications, and Warranty

This fixture is UL listed and DLC Premium qualified. It carries an IP65 ingress protection rating and an IK08 impact rating. The housing is constructed from die-cast aluminum with a tempered glass lens.

Operating temperature range is -22°F to 122°F. The fixture is covered by a 5-year warranty from the date of installation.

Frequently Asked Questions

What is the recommended mounting height for this fixture?
Typical mounting heights range from 20 to 40 feet, depending on required light levels and spacing.

Can this fixture be used with lighting controls?
Yes, 1-10V dimming is supported for use with compatible controls, sensors, or building automation systems.

Is this fixture suitable for damp or dusty environments?
The IP65 rating protects against dust and water jets, making it suitable for most industrial interiors.

What is the expected maintenance interval?
With an L70 life of 164,000 hours, routine cleaning is the primary maintenance required.

Application Questions and Clarification

For clarification on application fit, confirm ceiling height, spacing, and required light levels for your facility. Assess compatibility with existing power infrastructure and mounting conditions. If the installation environment includes corrosive agents or extreme temperatures outside the specified range, review alternative fixture options.

If integrating with advanced controls or networked lighting systems, verify compatibility with 1-10V dimming protocols. For specialized sports, event, or aviation applications, confirm that the fixture?s output and distribution meet project requirements.