I have a recently purchased home with a cement pool. There are two lights in the pool, neither are working. I have what appears to be two relay boxes next to the outdoor sealed switch which I assume means these are low voltage lights. Before I start my diagnostic routine I though I would pull both lights from their niche's and work my way back to see where the problem is. Here's my question. I just went into the pool Saturday to inspect the lights. Neither appear to have a retaining screw on the bezel for removal. Where there lights at one time that were just pushed into the niche? There's a lot of paint on these but I still don't see where there was a screw. I thought I would ask before I start prying.