The AIR-1 from C.A.P. allows you to control the temperature and humidity within your growing environment. Connect your ventilation equipment (air conditioner, fan, etc.) to the exhaust outlet. Then set your temperature and humidity to the level that you wish to maintain. If either level is exceeded, the exhaust outlets are activated to reduce heat and humidity. The AIR-1 is rated for 15 amps @ 120 volts. 3 year no hassle warranty.