ITEM NAME:DC 9V 12V 24V 48V 60V 20A Motor Speed Controller Regulator Driver PWM 25KHz L8Z8 DC 9V 12V 24V 48V 60V 20A Motor Speed Controller Regulator Driver PWM 25KHz L8Z8 100% brand new and high quality Operating Voltage: DC 9V-60V Output Current: 0 to 20A Output Power: 0-1200W PWM Frequency:25KHz Speed Range: 0-100% color:silver Speed Principle: Adjust the current Material: metal Size: 105mm*50mm*33mm Mounting holes center distance: 104mm Typical applications: DC 9V 12V 24V 48V 60V DC Motor Speed Controller Motor speed control and regulation in RC models, fans and more Small pump control, such as RS-360 motor Temperature control in devices such as soldering irons Brightness control of DC light bulbs Package includes: 1 x 9-60V 20A DC Motor Speed Controller Note: Light shooting 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..Output Current: 0 to 20A. PWM Frequency:25KHz. Speed Principle: Adjust the current. Speed Range: 0-100%.