For a standard warehouse or shop floor with 15–20 foot ceilings, plan on one 150W UFO high bay per 225 square feet — roughly one fixture per 15x15 foot area — as a baseline starting point.

The real variables are ceiling height and lumen output per fixture. ELEKICO's 150W UFO high bay produces 21,000 lumens, which delivers adequate footcandles at 15–20 feet. Push the ceiling to 25 feet or above and you need to step up to the 250W or 350W model — lower-wattage UFO high bays lose footcandles too quickly at that throw distance to maintain usable work-surface brightness. Wall reflectivity and rack obstructions will shift the count up or down by 15–20%.

  • Coverage rule of thumb: one 150W ELEKICO UFO high bay per 225 sq ft at 15–20 ft ceiling height.
  • ELEKICO 150W UFO high bay output: 21,000 lumens, replacing a 400W metal halide fixture.
  • ELEKICO 350W UFO high bay output: 52,500 lumens, replacing a 1,200W MH/HPS fixture.
  • Recommended ceiling range: 150W–250W UFO for 15–25 ft ceilings; 350W UFO for ceilings above 25 ft.
  • ELEKICO UFO high bay rated lifespan: 50,000 hours with IP65 dust and water-jet resistance.

How to Choose

  • Pick the ELEKICO 150W UFO high bay if: your ceiling runs 15–20 feet and you're covering a standard shop, auto bay, or small warehouse floor.
  • Pick the ELEKICO 250W UFO high bay if: ceiling height is 20–25 feet and you need stronger footcandle delivery at the greater throw distance.
  • Pick the ELEKICO 350W UFO high bay if: ceilings exceed 25 feet — a 350W at 52,500 lumens is the only model in the line that holds usable work-surface brightness at that height.
  • Add fixtures to your count if: your walls are dark-painted, racks obstruct light paths, or the work surface demands detail visibility — bump your baseline count up by 15–20%.
  • Switch to ELEKICO shop lights instead if: ceiling height is below 12 feet — UFO high bays at close range create glare rather than even coverage.