I installed 4 of these lights in a ski apartment in some dark and secluded areas with glass style ceiling lights that only allow you to have a 60 watt bulb so you don't burn the house down. As can be. Take out the old bulb and cap and screw on this bracket. Reattach the springs to the can. Slide it into place. Turn on the light and stand there in fear. There are things you haven't seen in years. For simplicity and functionality, you can't beat this great LED replacement light.