This system can work automatically with the temperature changes. When the air temperature changes, the thermostat will sense its changes and regulate the working status of the fan controller. The fan controller will regulate the operation of the electric fan accordingly. The air temperature regulation scope is 0-40degree centigrade.

Features:
1) 220V/50HZ
2) Max power: 1500W
3) Fan controller and thermostat can work together or separately
4) Ideal partner for hydroponics
5) Temperature difference is about 1degree centigrade more or less