Quote Originally Posted by Backpacker420
Is the difference significant?

Which is 'easier'?
Yes. The difference is quite significant, but many people grow happily using CFL's.

Once they are set up, there is no difference in how easy or difficult they are. The timer turns them on, the timer turns them off. The difference is in how much heat they generate, and therefore how much temperature control you will need.
How much your bill goes up depends on a lot of things, and probably can't be accurately answered here without a lot more info.
psteve Reviewed by psteve on . CFL vs. HPS I'm currently planning my grow, which will be in an attic. It's not my house so I can't exactly start drilling holes everywhere, but I think regardless it's a little drafty so it may ventilate itself! Haha. There is a window which I could use though. But my question is: CFL bulbs REALLY are attractive because of how low their watt usage is - but can you really go the whole grow with CFL bulbs? I would like some tips on this, as well as the pros and cons. If an HPS is just simply better, then Rating: 5