We used them to update some of the old light fixtures in our basement. We installed them in a grid pattern in a drop down ceiling tile. They weigh next to nothing and literally took about 5 minutes to come to light. We are fortunate that they fit into the existing cut out for the old fixtures we replaced. The light is perfect and shines well. We bought more than we needed so when the bulbs finally stopped working we could just turn on the new light.