I'm crossing my fingers for you on this one.. Not to cloud your day or anything, I bought a very similar product off of ebay over a year back. They were working great until about 3 months in when they started shortening out and flickering. By then I had purchased 10 of 'em at a cost of 30 a piece and of course it was pass return policy.
well, since you got a 3 year warranty on these.. I hope those chinese manufacturers respect it if anything were to happen.. keep us updated!
Does the bulbs have a heatsink and do you plan to Par test it?...