I was thinking about buying those new-fangled white LED grow lights, hopefully that will save on the electric bill. They're a lot more expensive than the sci-fi purple grow lights, though.
The full spectrum lights are also more effective. It's been uncovered relatively recently that most plants do need a small amount of the green chunk of the spectrum, even if only because including it helps fill out the full spectrum.
These bulbs, available off the shelf at any Home Depot, are cheap, durable, and provide much better light than you might think.
Most grow lights you find like to look good by listing their max PAR/PPFD, coming up with numbers often in the hundreds. That's the highest reading at the sweet spot. Feit Electric and a couple other brands prefer to list the average measured over an area. This is a much more useful number for me as I'm using just a fistful of lights as supplemental lighting to a large North facing window. Using the app on my phone I find measurements well over 100 PAR/PPFD.
So I guess that's my personal product evaluation: 3.5 stars for a high cost/quality ratio(though, admittedly, that's not saying much), and being a known quantity at every purchase.
My point is; don't over think it, and don't buy the box.