I've been running my ipower 400w mh/hps since the beginning of the year. I've had no problems, they stay cool with their built in fans never ever hot to the touch. At least not mine. I did see mixed reviews but for 130 it was worth the risk. It works great for what I use it for. Plus it came with a warranty I didn't know that until the package arrived. You just have to register it. Like I said though for 130 you can't beat it. They bulbs they came with didn't do me to bad either. I vegged 2 nice bushes under it. I upgraded to a 600w air cooled flowering tent a couple months after I bought it.