Why are you considering LED? If it's to reduce electricity costs and/or reduce heat in the summer, LED is a good choice but you'll pay $3 per watt. It will take awhile to pay for themselves.
thanks for the info, ill check into it. i was thinking i may go 4x4 tent with a 600w HID to get more watt per sq/f.
the reason i was considering LED, wasnt really because of reduced electricity costs. but more about the heat, not in the sense of temperate control for the room, but rather because i would be paranoid that my place would burn down while im either sleeping or away lol. and the other reason is so i dont have to use a ballast, im worried about RF interference and bothering the neighbors cable or wi-fi (or my own), and having a random cable company come by knocking on my door because of all the interference. i been arrested more then once, twice, and three time (and more then that lol) soooo its more about having better security and peace of mind then the electricity bill. but the electricity bill cost is only an added bonus.. but sadly as the way LED prices stand right now thats just to darn much!! if they end up going down within one year to double the cost of a HIP-set (for good brand) ill get them.
do you have any recommendations for good ballast that wont heat up to much and not give off any Radio Frequency Interference?
EDIT:
You should really be ssking this in the indoor growing section under led lighting............. Good luck and cya in the led forums
and i do apologies for this being in the wrong forum section, didnt check out indoor growing, thought a setup about picking lights was more towards the grow room section at first glance :/ now i know , thanks for letting me see that
EDIT x2: also just a headsup (maybe a forum admin needs to know this), but when you hover your mouse over the forum topics, specifically "indoor growing", it says "growing under HID". even though this isnt the case.