usually, those are just 'hobby' type lights, so Mom can keep her African Violet alive on the kitchen counter, no good for real growing ... heat, low light output, at the wrong spectrums, and expensive ... better to use CFLs, or tube fluorescents ... we have a 'LIGHTING' section here in the Forum, go sift thru the previous posts, use the SEARCH feature, it's all here already ... good growing ! :smokin: