i am looking into getting a hamilton 150w hqi 10k bulb and want to know what everybody else thinks about them. i found one on sale for $54. i know you usually get what you pay for, so i am sceptical. are they german, us, or chinese??
i ordered a 10k and got it yesterday. the box does not say where it is made. we'll see how it turns out. has to be better than the coralife 20k it is replacing.