Feature 1 Variable fan speed controller can be perfect for controlling speed of high speed inline fan and mini blower. 2 Lightweight speed regulator is practical and environmental friendly, easy to use. 3 Motor speed controller is equipped with built-in grounded control outlet and metal clamp at the back. 4 And motor governor's high practicality helps be widely used adjusting for the speed of fans, routers, etc. 5 Entitled with high practical adoptability, variable fan speed controller quality is guaranteed, you can use it with confidence.Item Type: Variable fan speed controllerCable Size:(Approx. 1-meter/ 3.3ft) / (Approx. 2-meter / 6.6ft)(optional)Material: Engineering plasticPurpose: Adjust the speed of fans, routers, etc.Output Voltage: AC120VMaximum Current: 15APower: 1800WLeakage Line Length: 1.85M Package List1 x Governor 1 x User Manual