I am considering a partial switch to LED, but cannot go full LED as I would have to run some heat and controllers and there I get to the point of LED cost really isn't going to be able to be absorbed until the light units themselves last for a decade. Yeah 50.000 or 200000 hrs per led emitters but I have yet to see an indoor household LED bulb or indoor grow LED or industrial outdoor lighting LED unit last longer than a magnetic (or recent digital lol) driver for an HID unit. Driver circuitry failure is rampant. I seem to come to a consensus of 10W hid power, requires 8W LED equivalent nowadays. Not much of a hydro savings 20% IMO. I had a couple budget leds over the last few years but, they get disposed of when they break. I'm used to changing a bulb when things don't light up, not re-ordering a whole complete, soon-to-be-obsolete 2 bucks a watt junk. Too much crap to go along with LED to get buds worth smoking?????? IMO. Shipping to Canada sucks AT too. Seems like we have to be HVAC, computer, organic chemistry experts to get the best out of quality LED's or it isn't really worth the switch, especially with ROLS grow style????