Features This speed controller has a delicate and practical body that is waterproof so you can use it outdoors Comes with screw terminals and a power and motor electrode label for convenient wiring The input of the DC motor controller is connected to DC power, cannot be connected to AC power, otherwise it will burn out Make sure the positive and negative polarity is connected correctly, otherwise the controller will be damaged Suitable for 12V motors less than 120W, 24V motors less than 240W, etc Description: This is a simple and easy-to-use DC motor speed controller with small size, elegant appearance and stable performance. It is made of high quality circuit board which ensures longer service life. The input voltage can be 10V to 60V DC and the output voltage is 0-100% of the input voltage. This speed controller is very easy to adjust. Features: This speed controller has a delicate and practical body that is waterproof so you can use it outdoors. Comes with screw terminals and a power and motor electrode label for convenient wiring. The input of the DC motor controller is connected to DC power, cannot be connected to AC power, otherwise it will burn out. Make sure the positive and negative polarity is connected correctly, otherwise the controller will be damaged. Suitable for 12V motors with power less than 120W, 24V motors with power less than 240W etc. Specifications: Potentiometer resistance: B100K Input voltage range: DC 10V-60V Output voltage: 0-100% of input voltage Control power: 12V*10A=120W,24V*10A=240W...... Rated current: 10A Maximum current: 20 A Speed range: 5%-100% PWM frequency: 25 kHz Size: 88 x 59 x 40mm/3.46 x 2.32 x 1.57 inches Tap hole size: 8mm/0.31 inch Package includes: 1 x Speed Controller Package List