Quote Originally Posted by EXP13
Fluorescent lights are all the same...

With almost any light, the only way to effectively "direct" the light is to have a non-spongey reflective surface OPPOSITE the side you want the light to affect and EVERYWHERE you want the light NOT to go...
Of course fluoros are not all the same, but yes they in general use the same technology. There are hundreds of types of fluoros, and many of them are mostly useless for growing.

What a cool way of describing how a reflector should be designed. I never heard it put quite like that, and what a surprise, it makes perfect sense. Have a little rep.