i wonder how these compare to expensive led's- i'd luv to move from 315 cmh's to led's mostly for the lesser heat, but they are so much $$$ - at least double (plus) compared to these mars led's - but are we comparing apples to apples... mars tout their ts3000 works for a 4x4ft area in flower... for 439bucks, thats a steal... or is it?? thats the question