Description: - Electronic governor: 12V, suitable for lights dimming, pump regulation, fans wind , heating , equipment power, motor rotate . - Durable: Using pure copper thick wire, more safe and stable, waterproof and durable. - Easy : With temperature control knob, 10% adjustable and closed. - Advntage: Silent work, energy saving, stable anti noise, and with of use. - Wide Application: Connect this device appliance , then rotate the knob for dimming, , voltage, temperature control.Specification: - Material: Copper - Operating voltage: 1014V - Control power: 25W - Adjustment range: 10% (can be shut off) - Size:approx. 42x21x16mm/1.65x0.83x0.63inchPackage Includes:1 Piece ControllerNote:Don' brushless type motors.