David, one last question, did they say whether those lights came with a capacitor wired in? According to the website, they don't but... one fellow ordered a bunch a while back and they did in fact come with capacitors installed.I had the econlight HPS and didn't care for them because the housings were so thin and fragile but a friend of mine bought these HD HPSlights andfelt the housingsweremuch stronger and over allthe light better made. I'll be very interested to hear how you like them, please give us a product review when you have them up running.