I did the bulb replacement on a couple in my fiver and was not happy with the amount of light output. I found a complete fixture on Amazon and ordered a couple to see how much light output they had. I was totally surprised with the light output and replaced all my interior fixtures. Here is the description to search for on Amazon - 2 of Thin-Lite (DIST-LED312-1) Bright White Double Surface Mount LED Dome Light. I am totally satisfied with each one of them.