Go to 1000bulbs.com and look up 4-pin CFLs. The fulham ballasts will run multiple lamps. Look in the CFL Ballasts section. For the sockets you'll have to phone in your order as they don't have them listed on their website. (Why, I have NO Idea) It's ite# SOCK-EG36070 They don't carry the 2700 Very Warm White bulbs so I went with the 3000K ones. I'll be running 4 55w lamps off of one fulham workhorse 8 ballast. (Everything including the sockets was less than $110 shipped) Sure wish I'd found this post back when it was posted. I've been looking for this information for a LONG time LOL! Thanks!