The multi-function fan speed controller allows you to set your fan motor speed accordingly. It can adjust your fan to full speed in summer and to low or medium speed in winter to ventilate your grow room according different need. If used with fan and filter for ventilation, the suitable and adjustable fan speed is good for utilizing your carbon filter more efficiently. Voltage: AC120V, 60Hz 15A. Max. Power: 1800W. Fuse: 15A. Dimension: 5-1/2"L x 2-2/5"W x 2-2/5" H. Power Cord: 31-1/2"
One control switch for 3 settings: Variable Speed, OFF, and Full Speed
Speed control dial to control variable speed: Low, Medium or High speed
Built-in a metal clamp at the back of the speed controller; Built-in grounded control outlet
Come with 31-1/2" Grounded Power Cord with US standard plug