Speedster Variable Fan Speed Controller

Dial In Your Environment With The Speedster Variable Fan Speed Controller The Speedster Variable Fan Speed Controller is a great way to dial in your grow room environment on a budget. It comes equipped with three settings: on, off, or variable. You can simply use the knob to increase or decrease fan motor speed when connected to the variable setting. It works on a standard 120 volt outlet, and pulls just 15 amps of power.