The future-brite has axil fans in the ballast to keep it cool. The lumatek does'nt.The cooler a ballast stays the more efficient the output and the lamp life.It's just a matter of preference.I looked into other brands and found the future-brite to be the top of the line.I'm not saying the others are'nt fine! I just choose that brand.The fans inside,had alot to do with my choice.

Ga Grown!
GaGrown Reviewed by GaGrown on . The Twins! Just got my second 600 watt electronic ballast. You freakin' need sunglasses in that room!. Found me and old co2 tank at a yard sale. Got it for 10 bucks. The guy was a welder. Got the hoods on a mover.Man the lower branches are even beginning to fill out more with just that 1st 600. This will greatly increase my yeild.Not to mention quality! Ga Grown! Rating: 5