I just bought 5 CFL lights from an industrial light distribution company. I'm trying to figure out what kind of ballasts and how many I would need to run these. Please educate me on the science behind the ballast if you have the time / knowledge, I would like to learn a bit about it. The 26W CFLs are 2PIN and the 42W are 4PIN. What would be the best light fixture to use? TY