UFO LED High Bay Light for Industrial & Commercial Spaces

Use this formula to determine how many 150-200W UFOs (high bay fixtures) you need: N= (Floor area in sq ft × target foot-candles) ÷ (Lumens per fixture × 0.65 × 0.85). The 0.65 is a standard coefficient of utilization for light-colored warehouse walls, and the 0.85 accounts for lumen depreciation over time. For example, a 10,000 sq ft warehouse that needs 30 fc will need about 34 fixtures if you use our 150W (22,500 lm) units, arranged in rows 16-18 ft apart; bump to 200 W units (30,000 lm) and that number drops to about 25 fixtures at wider spacing. Notice that the height makes a difference too; the 25 ft units cast the light over a wider radius than the same fixtures mounted at 15 ft, often at a lower wattage “price.” Give us your floor plan dimensions and ceiling height and we can run a free photometric layout for you.

Yes – all Guangqi UFO high bay fixtures come standard with 0-10V dimming. Run your dimming control wire (via any compatible BMS, daylight harvesting system, or occupancy sensor) to any fixture.

Shape determines where each type of fixture is most effective. Round UFO high bays are “round” with a beam spread of 120° – one doesn’t need to light the whole ceiling to flood the entire area, so they’re perfect for big open warehouse floors, gyms, and any productivity space with a relatively consistent view of the ceiling. Linear high bay fixtures shoot forward in a narrower band, so they fit best in aisle-type racking storage where you want focused downlighting, 3-4 ft wide, on each aisle between the racking rows. On the “truth in advertising” side, the UFO high bay weighs only 3-4 kg and can be ascended to a single mounting point in less than two minutes (much less time than it takes to line up the hooks). The linear fixtures run from 5-12 kg, need two-hook suspension, and take longer to align. All things considered, the “round” offering often costs less per fixture for similar lumen output than the “rectangular” linear.

50,000 hours at L70. At 12 hours per day that is 11.3 years before lumen depreciation rears it’s ugly head at 30%. Metal halide (MH) lamps have an average life span of 10,000-15,000 hours, though they need occasional restrike, so they last roughly one-quarter that period.

Yes – a 100W LED UFO will run circles around a 250-400W MH in the same application. Same with a 150W (400-500W MH) or a 200W (500-750W MH). Plus the LEDs have better color rendering (CRI ≥80 vs 65-70), no restrike delay, and instantly come on every single time. Most existing hook-mount locations accommodate the UFOs with no change needed. You simply remove the existing ballast and hook right into your AC supply.

UFO high bays are suspended using a hook bracket, chain, or pendant stem from the existing ceiling structure or beam flanges. Electrical connections are simple: hook up the Line, Neutral, and Ground to your AC100-277V power source. To accomplish 0-10 V dimming, run an additional 2-conductor cable from the fixture to your dimming controller. A licensed electrician can install 10-15 UFO fixtures per hour on a clear ceiling with existing junction boxes.

5000K (daylight white) is the recommended color temperature for warehouses and manufacturing facilities – it provides maximum visual acuity while reading labels, scanning barcodes, or inspecting components. 4000K (neutral white) is recommended in retail stores and showroom settings where a slightly warmer tone renders products more appealing. 3000K (warm white) is rarely suitable for industrial high bay applications but can be suitable in hospitality or restaurant spaces with exposed ceilings.