Beautiful looking plants......these LED units definitely seem to be worth the (enormous) pricetag.
How much/little heat does a big unit like that give off? - compared to a HID?
^ yup. I was thinking today that even if you buy a light today, tomorrow it'll be outdated. Like a computer, buy the top of the line one today, and in a year, the next joints smash the one you just got!! The advancements will be rapid in the coming years.