uniquegoods CCMFC 12V 2A DC Motor Speed Controller Adjustable Variable Speed Switch PWM DC Voltage Switching Regulator control speed of a DC fan Package including:1 x dc motor speed controller;1 x button switch (a gift free) Input supply voltage: 12VDC ; Output voltage range: 0.8V-11.3V Item size:2.6*1.26*0.95 inches ; Net weight: 1.4 ounces The maximum output power: 24W The maximum continuous output current :2A; Suitable for the DC fan within 1A