Features ​Output - Suitable for DC motors up to 70A. SAFE TO USE - Made of high-quality delicate metal casing, no rust. Reliable - High-quality circuit boards ensure consistent and durable performance. Easy - Easily control voltage and speed with adjustable knobs. The adjustable voltage range can truly achieve smooth adjustment from 12V to 60V.​ This is a simple and easy-to-use DC motor speed controller with mini size, elegant appearance and stable performance. It is made with high quality circuit board which ensures a longer service life. The input voltage can be DC 12V to 60V and output voltage is 0-100% of the input voltage. This speed controller is quite convenient to use. Features: Output - Suitable for DC motors up to 70A. SAFE TO USE - Made of high-quality delicate metal casing, no rust. Reliable - High-quality circuit boards ensure consistent and durable performance. Easy - Easily control voltage and speed with adjustable knobs. The adjustable voltage range can truly achieve smooth adjustment from 12V to 60V. Specifications: Model: PWM 70A-220S Color: Silver Material: Metal Input Voltage: DC 12-60V Output Current: 0-70A Power: 4000W Rated Current: 70A Speed Adjustment Type: Current Adjust Adjustable Speed Range: 0-100% Speed Adjustment Way: Potentiometer (linear) Output Voltage: Linear under load Over current Protection: 80A Red Wire: "+" Black Wire: "-" Panel Cutout Diameter: 10mm / 0.4inch Size: Approx. 150*85*45mm/5.9*3.3*1.8inch Weight: Approx. 586g / 20.7oz Package List: 1 x Speed Controller Package List