LED UFO High Bay 240W – 480V Round Fixture, 36,000 Lumens, 5000K Daylight

It runs on 277-480V only, for buildings with 277V or 480V service. It won't work on 120V, 208V or 240V. For those voltages, choose our standard 240W UFO high bay (ALS-RHB8-240W-5K-120-D), which runs on 120-277V.

No. It's a dedicated 240W, 5000K fixture. To lower the light level, dim it with a 0-10V control. In 480V, this is the only wattage we offer.

Both plug into the sensor port at the center of the lens, with no extra wiring, and turn the light on when someone enters and off when the area is empty. • Microwave: very sensitive and covers a wide area, picking up even small movements. Best for large open spaces such as open warehouse floors, gyms and loading areas. It can pick up motion through thin partitions, so it may also respond to movement in a neighboring aisle. • PIR: detects body heat moving in its line of sight, so it won't trigger through racks, walls or doors. Best for aisles, storage zones and areas where you want each light to respond only to its own space.

The light itself works in cold and unheated spaces down to –40°F (the Emergency Backup only goes down to 41°F). The upper limit is 113°F, so in buildings where air near the roof gets hotter than that in summer, mount it lower or make sure the space is ventilated. It isn't meant for washdown areas: clean it only with a dry cloth, not water or caustic cleaners.

Either. It comes with a heavy-duty hook built in, so you can hang it from a chain, cable or ceiling hook; tighten the locking screw across the hook opening so the fixture can't slip off. To mount it directly to a ceiling, wall or beam, add the Mounting Bracket. It's a U-shaped bracket that bolts to both sides of the light and screws to the surface through the slots in its base. The pivots on each side let you tilt the light to aim it, for example at racks, a wall or a work area. With the Emergency Backup, the light mounts under the backup unit instead.

American Lighting Systems offers a 5-year warranty on all LED fixtures, ensuring coverage for defects in materials or workmanship during the warranty period .

Yes, free shipping is available for orders of $500 or more within the continental USA (excluding products over 4ft in length) .