The big thing is the 23 Year warranty (I have no idea why they came up with that number)
http://www.kchilites.com/store/warranty.aspx
They sent me a complete 150watt daylighter because the filament burned out in my old one, without question.
Looking at that auction, it may be a good deal, however, you can get those same lights for $25 in chrome at Advance, and the 150W bulbs really aren't much better than 55W. The light is gained in the reflectors and glass. Thats why PIAA and other expensive lights run 55ish watt bulbs and are still Hella brighter than the cheap ones with 150Watt bulbs.
I have the 150Watt KC Daylighters, and they have very good reflectors. Also, the filament is roughly 5 times larger in diameter than a standard H3 bulb filament. They put off a ton of light because they have a large light source and a decent reflector along with good glass.
I would say you are better off to spend $200 on 4 KC's because:
-I would bet 4 KC's are brighter than 8 offbrands
-8 lights looks goofy on any vehicle
-23 year warranty
