GAS - Enviro V2 ControllerOverview The GAS Enviro Grow Light Controller helps growers operate AC and EC fans. You can control on and off periods for any type of grow room equipment. With data collected from the environment, you can control humidifiers, lights, heaters, and pumps. Set minimum and maximum day night fan speeds and determine humidity and temperature rates. The unit connects to EC Revolution Vector Fans, Hyperfans, Silenced EC Rev Vectors, and AC fans. General