^^^ the sunshine systems panel consumes twice as much power as that cheapy ebay lamp
the sunshine systems panel also has half as many leds
the leds are far brighter on the sunshine systems panel, they can actually grow a plant with just the panel by itself...the cheapo ebay panel on the other hand will be a very slow slow process of growing, the plant will grow, but man it's going to be slow motion
the build construction on the sunshine systems panel is much better as well, 2 rows of led on my ebay panel stopped working, i often have to bang the ebay panel to get the leds to come on all the way or else they are incredibly dim and almost look off, the ebay one is just crap imho
i have one of those cheap ebay panels, it's a piece of crap, honestly i would've been better of spending the money on cfls i feel...it is incredibly low power which can be handy though, i have ran the cheap one off of a battery backup in my car while driving some clones up 2 hours away, it was enough light for them to not be finicky getting stressed, currently i am using the ebay panel to keep a couple male plants alive along with some incandescent lights and 1 t8 PURple "grow light"
here's a small pic of my old cheap ebay panel at work when i first got it in april of this year: