Hi dude, I have 3X Lumatek digital ballasts, although I only use 1 at a time.. at the moment I am using a 400W DigiLux lamp (dual-spec) in a Digital Lumatek 400W Boostable ballast, Iam also running 2X 125W Blue-Spec CFL's and 2X 45W Blue Spec CFL's and a 20W UV-B so my total wattage is :- 730W...