[leifthebunny]

What type of plants are you going to do? Low light plants will work with the standard bulbs.

 

[leifthebunny]

Ok, those are moderate light plants, so you'll need spectrum bulbs. You might want to check with your LFS on bulbs. To be honest with you, I'm not sure if you would be better off just buying a new fixture or just replacing the internals (my electrical engineering is lacking).