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Dear gardner comrads... I have heard, that its possible to drive 2 x 315w cmh bulb with normal 600w hps ballast. And 3 x 315w cmh bulbs with 1000w hps ballast. Just splitting ballast power for bulbs. This is rumoured to be a dark secret of the cmh light industry. Is here someone, who knows...

Here is schematic diagram of Gib thermostat hygrostat. What I want to do, is connect fan ventilate my grow room when temperature raise over 25C/77F and connect my ultra sonic humidifier on when humidity drops under 50%. Unlucky for me, I dont understand this schematic. Wich line goes where...

Here is schematic diagram of Gib thermostat hygrostat. What I want to do, is connect fan ventilate my grow room when temperature raise over 25C/77F and connect my ultra sonic humidifier on when humidity drops under 50%. Unlucky for me, I dont understand this schematic. Wich line goes where...

Hello there. I want to show you my new grow space. It's 2,4 x 2,4 m ( 7 x 7 ) tent with 2 x 600w hps with cooltubes. Plants are grown vertically in 8 pileable grow modules.