The service life and adjustment range of the fan speed controller are determined by the equipment used. Compact size, high accuracy, the fan speed controller is easy to operate and convenient to carry. With 350W maximum input power and 3Amp maximum input current. The working speed, -w rate and brightness of the fan speed controller are controlled by electronic control. 120V electronic stepless speed controller, the fan speed controller is suitable for lights, fans, power tools, massagers, and pumps. Specification: Condition: Item Type: Fan Speed Controller Shell Material: Plastic Color: black Model: H-R-3A Voltage: 120V/60Hz Maximum Input Power: 350W Maximum Input Current: 3Amp Display Mode: Pointer Type 2m/6.6ft UL certified US plug cord (NOT Included) Note: The product does not include a power cord. Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. Voltage: AC100-240V Package Contents: 1 x Fan Speed Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.