240 / 270 / 310 Watt Adjustable LED UFO High Bay | 34800 to 45000 Lumens | 4000K / 5000K Adjustable | 100-277V

Product Overview

This 240/270/310 watt adjustable LED UFO high bay delivers 34,800 to 45,000 lumens at 145 lumens per watt. The fixture replaces 400 to 1000 watt metal halide systems and operates on 100-277V input at 50/60 Hz. Output is field-adjustable across three wattage settings, and color temperature switches between 4000K and 5000K.

The die-cast aluminum housing measures 14 x 11 inches and weighs 11 pounds. A polycarbonate lens distributes light at a 110-degree beam angle. The fixture includes a 5-foot power cord and an 8-inch dimming cord for 0-10V integration. CRI is 80+, power factor is 0.90, and THD is 20% maximum.

Where This Product Fits Best

This fixture is built for industrial and commercial spaces with ceiling heights that previously supported 400 to 1000 watt metal halide high bays. Warehouses, manufacturing floors, distribution centers, and large retail backrooms are typical environments. The IP65 rating allows installation in areas exposed to dust, airborne particulates, and water spray from cleaning or condensation.

The IK10 impact rating makes this fixture appropriate for environments with overhead equipment movement, forklift traffic, or locations where accidental contact is possible. Operating temperature range of -40°F to 113°F supports use in cold storage transitions, loading docks, and unconditioned spaces.

Performance and Functional Considerations

Field-adjustable wattage allows output to be set at 240, 270, or 310 watts after installation, producing 34,800, 39,150, or 45,000 lumens respectively. This adjustment is made at the fixture, allowing light levels to be matched to actual ceiling height or task requirements without changing hardware. Color temperature is also field-selectable between 4000K and 5000K.

The 110-degree beam angle from the polycarbonate lens produces broad coverage suited to open floor plans. The 0-10V dimming cord supports integration with compatible building controls or manual dimmers. Rated lifespan is 50,000 hours at L70, and 4kV surge protection is built in.

Installation and Long-Term Use

Mounting options include hook, pendant, or surface configurations. The 5-foot cord provides flexibility for various ceiling structures and junction box positions. At 11 pounds, the fixture is manageable for single-person installation in most conditions.

The die-cast aluminum housing and IP65 rating support hose-down cleaning and exposure to industrial dust without compromising the enclosure. IK10-rated construction withstands direct physical impact in active work environments. A motion sensor option is available for occupancy-based control.

How This Fixture Is Commonly Used

Once installed, wattage and color temperature are typically set during commissioning based on observed conditions. Facilities with mixed-use zones sometimes set different output levels across fixtures in the same space to balance light levels against ceiling height variation or task intensity.

The 0-10V dimming input is commonly connected to building automation systems or standalone dimmers for shift-based scheduling or daylight harvesting. In spaces where lights stay on continuously, the 50,000-hour lifespan reduces lamp change frequency compared to legacy metal halide systems.

Safety, Certifications, and Warranty

This fixture is UL listed and DLC Premium qualified. Surge protection is rated at 4kV. We back this product with a 5-year warranty.

Frequently Asked Questions

What wattage and lumen options are available?
The fixture adjusts between 240, 270, and 310 watts, producing 34,800, 39,150, or 45,000 lumens respectively.

What voltage does this fixture require?
It operates on 100-277V input at 50/60 Hz.

Is this fixture rated for wet or dusty environments?
The IP65 rating allows use in areas with dust exposure and water spray. The IK10 rating provides impact resistance.

What mounting methods are supported?
Hook, pendant, and surface mounting are supported.

Is this fixture eligible for utility rebates?
This fixture is DLC Premium qualified.

What is the warranty coverage?
We provide a 5-year warranty on this fixture.

Application Questions and Clarification

This product description reflects the provided specifications, ratings, and configuration options. For questions related to site-specific conditions, electrical compatibility, control integration, or application requirements not addressed in the provided data, our team is available to provide clarification.