I've been using CFLs and they already seem to be diminishing production with age (and it hasn't been THAT long, like 7 or 8 months) so I'm thinking about going with LEDs instead, maybe a combo of LEDs and CFLs. I'm thinking about putting LEDs in my flowering space, it's only 4 square feet. I'm looking to spend under $300. What would you guys recommend? Also how long do LEDs last?