I screwed the cfls into a plastic base which used to hold floodlights. I don't know where to get them as I have had this one in my basement for a while. Sorry I could not be more helpful. urgr8estfear Hey bud! Nice plants you got there! 1 small warning : smashing CFLs or any other fluro bulbs will release mercury (and tri-phosphates) into the environment. I sure hope you didnt smash em in your grow room. Mercury kills! (ask any golddigger) Thanks a lot for the information. I did not know that. I have since switched locations from where I was growing (the bulbs smashed inside the video cabinent I was using.) Thanks again.