UFO high bay light looks like a UFO round shape features a flat integrated aluminum housing to use in high ceiling area, UFO high bay is suitable for ceilings ranging from 20 feet to approximately 45 feet. UFO low bay lights, on the other hand, are used for ceilings 20 feet and under. SUREALL IHB-E series is an economic lighting solution for your vast space and areas with durable and stable features.