Those are Gen 3, which are better (more efficient), so if you want to spend the few dollars extra, by all means, go with the 3s. I'm looking at Gen 2, to save a (very) few bucks. I'm just not too bothered with the efficiency bump for this application. Here are the Gen 2s, by the way:
Yeah, that's what I'm thinking right now. I might change my mind to a different configuration by the time I actually get around to it though! Whatever prices out most cheaply by the time I convince the wife to let me build another light, most likely!
So have you cloned under 5000k? The only reason I'm staying away from a higher kelvin is because peeps who've been there before me have recommended lower temps for the extra red. On the other hand, I've always had good success under my 6500k CFL - but I know I can't directly compare that to the strips.Those are 20Vdc strips, you should run not higher than 0.7a without heatsinks.
So figure 20v x 0.7a max = 14 watt per strip max. Id go with 20v x 0.5a = 10 watts per strip, use 4.
So a 20v 2amp 40watt dimming power supply for parallel wiring at 0.5a
https://www.digikey.com/mean-well-usa-inc/HLG-40H-20B/
The strip you posted is 3500k, which is not the best for cloning, you may want to look at the 5000k ones.
I actually was going to build one, but these cheesy panels work so well its shocking.
They can actually veg a full square foot, clone twice that area each.
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Keep in mind that I'm looking at the 1-footers, which may not be optimal for your build!
I used CFL for clones and noticed the ones near the LED panels were doing much better, as were the vegetable seeds under them.
Check Sager for the driver. They usually have pretty good stock, and though they don't advertise it, I've always received free shipping when I order from them.
