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!