ebay LED knockoffs? 20k color

[playaslk]

Hey guys, ran across these and was wondering what the verdict was on these things? anyone try them? they seem much cheaper than AI but obviously its somewhat of a risk.

http://cgi.ebay.com/1pc-100W-Cool-W...894?pt=LH_DefaultDomain_0&hash=item19c50c8ab6

Let me know as i am considering diving into the LED world

 

[NyReefNoob]

they list it as white but say it is 20k plus you still need to buy the power supply and no dimming ability and imagine vert spot light like