I've been struggling to get started on a commercial system for about 5 years.

I have a bunch of four-bulb standard T5 fixtures, so switching to LED is going to be a long process (cost-wise) but I'm going to order a couple of these to test with the PAR meter just in case by some freak chance they're awesome: http://www.homedepot.com/p/Commercia...3161/205331022