EBAY METAL HALIDE BULB

[Reefpins10]

I have seen a reef tank that is running a MH SE 400W 14K Artemis brand bought from ebay for $20. It has a beautiful white with a sligtly blue tint on the tank, not like the XM 20K or 15k. All his corals color are excellent. I really want to buy the same one, but no where has it. The owner of this light bulb couldn't find it either. Does anyone else know where to buy this brand bulb ? If not, do you have any good or bad experience with 400W bulbs sold from ebay sellers ? I am thinking of saving money for a new tank if I can spend less on the bulbs instead.