125 / 225 / 300 Watt Adjustable Indirect High Bay Light | 19375 to 46500 Lumens | 5000K | 100-277V

Product Overview

This is an adjustable wattage LED UFO high bay fixture designed for indirect lighting in large indoor spaces. The fixture supports selectable output at 125, 225, or 300 watts, delivering up to 46,500 lumens at 5000K. Typical installations include mounting heights from 20 to 40 feet in warehouses, manufacturing facilities, and distribution centers. The fixture is suitable for both new construction and as a direct replacement for 400W metal halide high bays.

Chain-cable and yoke mounting options are available to accommodate different ceiling structures and installation preferences. The fixture is built for continuous operation in demanding environments where durability and consistent performance are required.

Core Performance and Output

This UFO high bay provides three selectable output levels: 19,375 lumens at 125W, 34,875 lumens at 225W, and 46,500 lumens at 300W. The fixture achieves 155 lumens per watt, supporting energy-efficient operation in high ceiling applications. The 45° beam angle and frosted tempered glass optics deliver controlled, indirect distribution suitable for open floor layouts and large volume spaces.

0-10V dimming is standard for integration with lighting controls. Excessive output may result in glare or over-lighting at mounting heights below 20 feet. At mounting heights above 40 feet, uniformity may decrease without careful layout and spacing.

Adjustability and Control Options

The fixture features field-adjustable wattage, allowing selection between 125W, 225W, and 300W to match required light levels or energy targets. 0-10V dimming is included for compatibility with standard dimming systems and occupancy or daylight sensors.

Adjustable output supports phased lighting upgrades or changes in facility use without fixture replacement. No onboard motion or daylight sensors are included; external controls must be specified separately.

Longevity and Reliability

The fixture is rated for 200,000 hours (L70), supporting long-term operation with minimal maintenance. The aluminum alloy housing and IK08 impact rating provide resistance to mechanical damage in active environments.

Integrated 6kV surge protection guards against electrical disturbances. The fixture operates reliably in ambient temperatures from -22°F to 122°F, suitable for most indoor industrial and commercial settings.

Build Quality and Physical Characteristics

The housing is constructed from aluminum alloy with a white finish. The fixture measures 19.25 inches long, 15.75 inches wide, and 5 inches high, with a total weight of 11 pounds. Frosted tempered glass optics are used for durability and glare control.

Chain-cable mounting is standard, with yoke mounting available as an option. The fixture is designed for secure installation on open truss, solid deck, or structural ceiling systems.

Where This Product Fits Best

This UFO high bay is designed for large, high-ceiling indoor environments requiring robust, high-output indirect lighting. It is suitable for both retrofit and new construction projects where energy efficiency and long service life are priorities.

• warehouse lighting
• manufacturing facility lighting
• distribution center lighting
• gymnasium lighting
• aircraft hangar lighting
• indoor sports facility lighting
• basketball court lighting
• pickleball court lighting

The fixture is appropriate for spaces with mounting heights from 20 to 40 feet, where high lumen output and controlled distribution are required. It is not intended for low ceiling or confined area use due to output intensity.

Installation and Long-Term Use

Chain-cable mounting is standard and supports installation on open truss or solid ceiling structures. Yoke mounting is available for applications requiring surface or angled installation. The fixture?s weight and dimensions allow for single-person handling, but secure attachment to structural members is required.

Routine cleaning of the frosted glass lens and periodic inspection of mounting hardware are recommended for long-term reliability. The fixture is designed for minimal maintenance over its rated life, with no lamp or ballast replacements required.

How This Fixture Is Commonly Used

Typical mounting heights range from 20 to 40 feet, with fixture spacing determined by output setting and target light levels. In open warehouse or manufacturing layouts, fixtures are spaced to achieve uniform coverage and minimize shadowing.

Higher output settings reduce the number of fixtures needed but may increase glare if not properly shielded or spaced. Layouts should consider both horizontal and vertical illumination requirements for the specific application.

Safety, Certifications, and Warranty

This fixture is UL listed and rated IK08 for impact resistance. It includes integrated 6kV surge protection. The operating temperature range is -22°F to 122°F. The product is covered by a 5-year warranty.

All components and construction meet requirements for commercial and industrial indoor lighting in North America.

Frequently Asked Questions

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

A: The fixture is designed for mounting heights between 20 and 40 feet.

Q: Can the wattage be adjusted after installation?

A: Yes, the wattage can be field-adjusted between 125W, 225W, and 300W as needed.

Q: Is this fixture compatible with 0-10V dimming controls?

A: Yes, 0-10V dimming is standard and supports integration with most commercial dimming systems.

Q: What mounting options are available?

A: Chain-cable mounting is standard; yoke mounting is available as an option.

Q: How should fixture spacing be determined?

A: Spacing depends on output setting and target light levels; higher output allows wider spacing but may increase glare if not properly managed.

Application Questions and Clarification

Q: Is this fixture suitable for use in gymnasiums and indoor sports facilities?

A: Yes, the fixture is commonly used in gymnasium lighting, basketball court lighting, and indoor sports facility lighting at appropriate mounting heights.

Q: Can this fixture be used in aircraft hangars or distribution centers?

A: Yes, it is suitable for aircraft hangar lighting and distribution center lighting where high output and durability are required.

Q: Is this fixture appropriate for natatorium or swimming pool environments?

A: This fixture is not rated for natatorium or high-humidity pool environments; use only in dry indoor spaces.

Q: Does the fixture support installation in agricultural or horse arena buildings?

A: The fixture can be used in agricultural buildings and horse arenas if installed in dry, non-corrosive indoor environments.