I think CMH are great lights. But with the new Samsung 301h and 301b chips, the new LED’s are amazing! Also Lots of LED’s are being built with the added UV chips. However I do know they are pricey, but will pay off in long run. Great write up!

Have you seen the new ceramic HPS bulbs? I would say this is a way better option then CMH for HID growers, since all you need is to buy a bulb, vs getting a new ballast as well.