color temperature

OK so I thought its all about the color temp on the kelvin scale when it comes to lighting? Ive been going back and forth about using MH/CFL/T5 for my new grow space that im building. Ive just found out that 400 MH color temp only shows 4000 on the kelvin scale, but lumens are 36,000. 23w CFL...

Hey all. I have a small but growing collection of tubes and CFLs that I'm using in a small tent. My original plan was to stick with 5000k+ for veg, then switch to all 2900-3500k for flowering. However, having been reading a bit about fluoros, it sounds like lots of people actually use a...