What do you think about CMH lights?

I love my 315 cmh. I've used it with a 600 watt hps and am now trying a run with led and liking the results so far.

Cmh is not cheaper to run than hps or led watt for watt. 315 watts would cost you the same with any light you use.

Also the bulbs are more expensive than hps or mh but also last a lot longer.