Thanks. Yeah I talked to another guy who uses RBI RHPs and he told em they come with screws also that he used on his T-10s that don't go all the way through. I use Pro Product RHPs which use 1/8" nut and bolts which require you to drill a hole in the roof and then bolt them in place. Think i'll give the RBI ones a try. Did you just run the power cord along the inside roof of the cage with cable clamps and drill a small hole out the back?