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I always thought hydroton worked great for both E&F and DWC. Straight from the aero cloner into hydroton. Never used the rockwool though. Rapid rooters on occasion. DWC veg growth rates really can be a problem if you run longer than expected in flower lol.

I'd say it depends on things like how much space you are lighting and what you pay for power and how much having less heat factors into your situation and to a lesser extent bulb replacement. If you are replacing a lot of bulbs though it's going to cost you that much more to switch to LED. I...

You could get a water chiller, position it outside the conditioned space and try going radiant (thinking radiator and fan). I would think canopy temp swing of 10-20+ degrees? and root zone swing between 5-10 degrees. 1 chiller, 1 rez, 2pumps, a timer, possibly a thermostat, a fan, plumbing and a...

I was thinking the main benefit to me of the current gen Citizen's was similar performance to the Crees for less cost? Going by the 60% efficiency example in this thread https://www.rollitup.org/t/why-are-cobs-better-and-whats-so-great-about-the-3590.920480/page-3 the 1212's running at 20-30...

I wouldn't say that it's a bad idea to list some basic kits if they could do it without risking any liability. No ones really inspecting our assembly for example. If anyone's doing a mixed spectrum with these which 2 did you use? Looking at the 1212 80 cri spectrum chart, 4k and 3k looks like...

Really liking these less expensive Citizen cobs. I've just been reading, watching and waiting up to this point. 0 experience with cobs. Leaning toward the 1212's @ 20~40 watts each. Probably <30 watts ea most of the time. I'm undecided on CRI and temp/spectrum. I was thinking mixed spectrum...

Wanted to say thanks for all the help and the diy's, RS, Supra, GG, and others. Just starting to learn about the LED/COB's. Seems impressive to me. Thinking the trolls are probably just shills at this point. You should send the best hater your smashed mars2 so they can do a side by side...