Those may look ok, maybe. But they are not anything like the Sbar or even the XHO from Reef Bright. First of all the maker or type of LEDs isn't listed, only its wavelength 470. Second, 470nm is not the ideal spectrum for corals, even as a supplement only. ~450nm,~420nm, and~380nm are the prefered LEDs for corals.
The Sbars have, Cree 450nm XPE, the brightest Royal Blue diode on the market and Epistar 420nm Violet. These are THE best LEDs available right now in those spectrum and every single company that makes reef lights(Ecotech, AI, MAXSpec....) use these LEDs or a lower grade. Only Kessil actually makes their own LEDs. Also 450, and 420 are exactly the spectrums you want to hit for "pop" and coral health. Next, there seems to be almost no real heat sink on the ebay light. Heat kills and a thin sheet of aluminum isnt going to through off enough heat to prevent those LEDs from burning up, UNLESS they have turned way down the wattage/voltage so low that they barely illuminate. The aluminum on the back off the Sbar is hefty and will keep the LED chips cool.
Maybe you cant see much but the diffrences are huge. Please as a personnel favor to me dont buy those specific lights, please. Not saying that they wouldnt work but its not right. Also I am only speaking about the light in this thread, maybe other "low cost" light on ebay are not so bad.
Final thought:
SB Reef Lights was born because the owner didn't think you should have to mortgage your house to buy lights. He personally designed and created all his lights to, #1 grow and show off coral just as well if not better than the expensive lights with a well made light and most important, #2 not have to get a loan just to grow corals.
If you want to grow corals, have a awesome looking tank, but dont want to speand a whole lot of money the SB Reef Lights is your answer.
If you just need something to light the tank so you can see whats in it, shop ebay and 60$ well spent.