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

Product Overview

This adjustable UFO high bay delivers 16,000 to 30,000 lumens across four wattage settings: 80, 100, 120, and 150 watts. Output selection is made on the fixture itself, allowing a single unit to serve applications with different light level requirements. At 200 lumens per watt, this fixture operates as a direct replacement for 400-watt metal halide systems.

The fixture ships with a 120-degree beam angle as standard. Optional 60-degree and 90-degree optics are available for applications requiring narrower distribution patterns. Color temperature is fixed at 5000K with a CRI of 80+, producing a cool white output suited to task-intensive environments.

Construction consists of die-cast aluminum housing with a polycarbonate lens. The fixture measures 14.7 by 7.32 inches and weighs 12 pounds. A 5-foot power cord and 8-inch dimming cord are included.

Where This Product Fits Best

This high bay is built for indoor and protected outdoor locations where dust, moisture, and physical contact are concerns. The IP65 rating allows installation in spaces exposed to water spray and airborne particulates. The IK08 rating provides resistance to moderate mechanical impacts common in active work environments.

Operating temperature range spans -22°F to 122°F, supporting use in cold storage entryways, unconditioned warehouses, and facilities with seasonal temperature extremes. The 100-277V input handles standard commercial and industrial electrical systems without requiring external transformers.

The adjustable wattage output makes this fixture appropriate when light level requirements vary across zones or when future adjustments may be needed without replacing hardware.

Performance and Functional Considerations

The four-position wattage switch provides output flexibility at 80, 100, 120, or 150 watts. Each setting delivers a corresponding lumen output of 16,000, 20,000, 24,000, or 30,000 lumens. Efficiency remains constant at 200 lumens per watt regardless of the selected output level.

Dimming is supported via 1-10V protocol. Power factor is rated at 0.90 with total harmonic distortion held to 20% maximum. The fixture includes 4kV surge protection, addressing voltage transients common in industrial electrical environments.

Rated lifespan is 134,000 hours at L70, representing the point at which output degrades to 70% of initial lumens. The fixture operates on both 50Hz and 60Hz power systems.

Installation and Long-Term Use

Mounting uses an integrated eye-hook. The 5-foot power cord allows positioning flexibility relative to junction box locations. The 8-inch dimming cord connects to compatible 1-10V control systems when dimming functionality is required.

At 12 pounds, the fixture requires appropriate support hardware rated for the load. The die-cast aluminum housing dissipates heat effectively without active cooling components, reducing long-term maintenance requirements.

A motion sensor is available as an accessory for this fixture. Configuration of motion sensor settings requires a separate remote control, with one remote typically serving an entire project.

How This Fixture Is Commonly Used

Facilities use the wattage adjustment to set initial output based on ceiling height and task requirements, then leave the fixture at that setting for ongoing operation. The switch is accessed at the fixture, so adjustments after installation require lift access.

The 1-10V dimming input allows integration with building automation or manual dimmer controls. In spaces where full output is not always needed, operators use dimming to reduce light levels during off-peak periods or low-activity shifts.

Beam angle selection occurs before installation. The standard 120-degree optic spreads light broadly for general area illumination. Narrower 60-degree or 90-degree options concentrate output for higher mounting heights or aisles where tighter distribution improves uniformity between fixtures.

Safety, Certifications, and Warranty

This fixture is ETL listed and DLC Premium qualified. The IP65 rating protects against dust ingress and water projected from nozzles. The IK08 rating protects against impacts equivalent to routine contact in active work areas.

Surge protection is rated at 4kV. Operating temperature range is -22°F to 122°F.

We provide a 5-year warranty on this fixture.

Frequently Asked Questions

What voltage does this fixture require?
The fixture operates on 100-277V input at 50Hz or 60Hz, compatible with standard commercial and industrial electrical systems.

Can the wattage be changed after installation?
Yes. The fixture includes a wattage selector switch with four positions: 80, 100, 120, and 150 watts. Changing the setting requires physical access to the fixture.

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

What beam angles are available?
The fixture ships with a 120-degree beam angle as standard. Optional 60-degree and 90-degree optics are available.

What is the warranty period?
This fixture carries a 5-year warranty.

Can this fixture be used outdoors?
The IP65 rating supports use in protected outdoor locations exposed to dust and water spray. Operating temperature range is -22°F to 122°F.

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.