How Do You Know if Retrofit Recessed Lighting Will Fit Your Existing Housing? Choosing new ceiling lights is not only about picking the right size. Retrofit recessed lighting must also match the existing housing, connection, space, and lighting needs. Checking these details first can prevent a fixture from being too large, too deep, or incompatible with the current setup. Start by looking at the recessed light already in the ceiling. Check its size, shape, and the space above it. Also look at the socket or connector. Read The Post: https://www.shineled.us/blogs/news/how-do-you-know-if-retrofit-recessed-lighting-will-fit-your-existing-housing