I use led start to finish. I started using cfl on clones, then just used MH or led as it was a ball ache keep swapping bulbs. I can't recommend switching to led enough. Lots of pitfalls, don't buy chinese and don''t buy blurple. I'd check out invisible sun, migro or vividled if you're in the uk. If US budget led, tighter buds, lower heat less electric, more bang for your buck. Just do some research before jumping in. Find something specific you may want and ask someone in the know 'Is this light good or shit' lol, good luck mate