NOTE: The amp draw given for the 50w is a typo, it probably should be .42!
But I think he meant it. I just looked at the specs closer, and this is just a populated 12V led harness with no power supply. Ryan was recommending a computer ATX to power the unit. Doesn't say whether any kind of current control is integral in this offering, or whether you have to figger that out fer yerself, or what. :wtf:

Anyway, if you power it with 4.2 amps at 12 volts, that comes out to 50.4W. Pretty sure that's what he meant.

I've got 4.7A powering 4 x 15W reds @ 10.6V. (calculates) = 49.82 watts. In the ball park, anyway....

But, again, it's a moot point. Ya can't get this item, and I would expect his next offering, if there is one, to use higher powered leds. And if it's a DIY kit, some kinda current control. If you hafta figure that out for yourself you don't need no stinkin' kit!