petruske said:I've read on some sites that the grow lights don't fit (or work??) on the shop light fixtures. I don't recall which site it was. I'll try asking at our local stores (Fleet Farm and Menards). Hopefully they have some knowledge on the subject. 
As Ken indicated, that is simply not true.
One thing I do is look at the options available. If they sell 3 types of "shop" lights, I buy the middle priced one. If 2 types, I buy the better of the two.
In the past I have bought "grow" lights, and I used to use 1 bulb of warm and 1 bulb cool in the same fixture. Experimentation and research showed me that "natural" (aka full spectrum) bulbs work well for my needs.
For a simple hobbyist application, I see no need to spend a ton of money on a fancy fixture.
I start from 500 - 1,500 or more seeds in my basement each winter.
