This is the model I own. It is rated at 250 watts and uses a metal halide bulb. I am not sure Chauvet makes it anymore, but they do sell a 400 watt cannon, that is actually cheaper.
I have had this light for about 3 or 4 years w/ no problems. It is very heavy and contains a cooling fan. I use it in my yard haunt and love it. It covers a large area and really makes UV colors pop. It was expensive, but I think it was worth the money.