I have a 1,000 sq ft, 3 car garage with 9 ft ceilings that needed more light. Previously I had 3 - 100 watt incandescent bulbs lighting the garage. I replaced the 3 incandescent bulb fixtures with 4 of the TechBrite 48 inch 3 lamp fixtures with the 5000k bulbs. I now have a total of 27,000 lumens of bright white light which equates to approximately 27 lumens per square foot. Installation of the strip fixtures was easy and the Wago Luminaire quick clip terminals made wire connections a breeze without the hassle of wire nuts. If you're as serious about your garage as I am, buy these and upgrade your lighting. You'll wonder how you ever lived before in the dark.