Titan Controls 2-Burner Carbon Dioxide (CO2) Generator, Liquid Propane, 120V - Ares 2 CO2 is scientifically proven to improve the performance of plants Provide a clean & efficient way to enrich your grow area with CO2 Comes with everything you need to get your CO2 system started All you need to provide is a gas source 1.5 Amps/120 Volts/60 Hz