300 / 400 / 500 Watt Adjustable UFO High Bay | 44900 to 79100 Lumens | 4000K / 5000K | 100-277V

Product Overview

This is a high-output, wattage and color adjustable UFO LED high bay designed for large-scale commercial and industrial interiors. The fixture delivers selectable output at 300, 400, or 500 watts, supporting a range of mounting heights and lighting requirements. Typical installations include replacing 1500W or 2000W metal halide fixtures in high ceiling environments such as manufacturing plants, warehouses, and sports facilities.

The fixture is engineered for demanding applications where high lumen output and robust construction are required. It is suitable for use in environments with elevated ceilings, frequent activity, and exposure to dust or moisture. Eye-hook mounting is standard, supporting rapid installation and straightforward maintenance access.

Core Performance and Output

This UFO high bay provides selectable output levels of 44,900, 62,000, or 79,100 lumens, with a maximum efficacy of 155 lumens per watt. The 90-degree beam angle delivers focused, high-intensity illumination suitable for open floor layouts and large activity zones. Color temperature is field adjustable between 4000K and 5000K to match task or visual comfort requirements.

Electrical performance includes 0-10V dimming, a power factor of 0.95, and operation on 100-277V circuits. The fixture is designed for mounting heights typically ranging from 30 to 60 feet. Excessive output may create glare or over-lighting at lower mounting heights. Uniformity may decrease if spacing exceeds recommended guidelines for the selected wattage.

Adjustability and Control Options

Both wattage and color temperature are adjustable via onboard controls, allowing adaptation to changing facility needs or energy targets. The fixture supports 0-10V dimming for integration with lighting control systems or occupancy sensors. This enables further tuning of light levels and energy consumption based on occupancy or scheduling.

Adjustability features are accessible during installation or maintenance, allowing field configuration without fixture replacement. No advanced networked controls are included as standard; compatibility with external controls depends on system design.

Longevity and Reliability

The fixture is rated for 170,000 hours (L70) of operation, supporting long-term deployment in high-use environments. The aluminum alloy housing and polycarbonate lens provide resistance to impact and environmental exposure. Surge protection is rated at 6kV, supporting operation in facilities with variable power quality.

IP65 and IK08 ratings confirm suitability for dusty or damp locations and moderate impact resistance. The fixture is designed for continuous operation in ambient temperatures from -22F to 122F. Routine cleaning and inspection are recommended to maintain optical performance in dusty or high-activity environments.

Build Quality and Physical Characteristics

The fixture uses a black aluminum alloy housing with a polycarbonate lens. The overall dimensions are 17.7 inches in diameter by 10.6 inches in height, with a total weight of 14.5 pounds. The eye-hook mounting system supports secure suspension from structural ceiling points or trusses.

All components are sealed to IP65 for dust and water ingress protection. The fixture is ETL certified and meets rebate eligibility requirements. IK08 impact rating supports use in environments with occasional contact or vibration.

Where This Product Fits Best

This UFO high bay is designed for large, high-ceiling indoor environments requiring high lumen output and robust construction. It is commonly installed in:

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

Environmental characteristics include tolerance for dust, humidity, and moderate impact. The fixture is suitable for both general area and task lighting in large open spaces. Not intended for low ceiling or confined environments due to high output and beam distribution.

Installation and Long-Term Use

Eye-hook mounting supports rapid installation on structural ceiling points, trusses, or unistrut. The fixture is compatible with standard 100-277V circuits and integrates with 0-10V dimming systems. Field adjustability for wattage and color temperature allows adaptation to changing requirements without fixture replacement.

Routine maintenance is limited to periodic cleaning of the lens and inspection of mounting hardware. The sealed housing minimizes dust ingress and supports use in environments with airborne particulates. Weight and size require secure mounting and may require two-person handling during installation at height.

How This Fixture Is Commonly Used

Typical mounting heights range from 30 to 60 feet, depending on the selected wattage and required light levels. Fixtures are spaced to achieve uniform coverage, with spacing patterns varying based on output and facility layout. In sports and convention settings, fixtures are often arranged in grid or perimeter patterns to minimize shadows and maximize uniformity.

Higher output settings reduce the total fixture count but may increase glare if not properly shielded or spaced. Adjustability allows tuning after installation to balance energy use and visual comfort. Layout planning should consider both vertical and horizontal illumination requirements for the intended activity.

Safety, Certifications, and Warranty

This fixture is ETL certified and meets IP65 and IK08 ratings. Surge protection is rated at 6kV. The product is eligible for utility rebates where applicable. Operating temperature range is -22F to 122F. A 5-year warranty covers manufacturing defects and performance.

All safety and certification markings are present on the fixture label. Installation must comply with local electrical codes and mounting requirements for overhead fixtures.

Frequently Asked Questions

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

A: Recommended mounting height is 30 to 60 feet, depending on wattage and required light levels.

Q: Can the fixture be adjusted after installation?

A: Yes, both wattage and color temperature can be field adjusted using onboard controls.

Q: Is this fixture suitable for damp or dusty environments?

A: Yes, the fixture is rated IP65 for dust and water ingress protection.

Q: What is the beam angle of this fixture?

A: The standard beam angle is 90 degrees, providing focused illumination for large open areas.

Q: How many fixtures are needed for a typical basketball court?

A: Fixture count depends on mounting height, output setting, and desired light levels. Layout planning is required for each project.

Application Questions and Clarification

Q: Is this fixture appropriate for use in aircraft hangars?

A: Yes, the high output and robust construction support use in aircraft hangar lighting applications.

Q: Can this fixture be used in natatoriums or swimming pool areas?

A: The fixture is IP65 rated, but site-specific humidity and chemical exposure should be reviewed before use in natatoriums.

Q: Is this fixture suitable for horse arena lighting?

A: Yes, it is commonly used in indoor horse arenas where high output and durability are required.

Q: Does this fixture support integration with occupancy sensors?

A: Yes, the 0-10V dimming interface allows integration with compatible occupancy or daylight sensors.