Item Type: Motor Speed Controller_x000D_ Material: ABS+Aluminium Alloy_x000D_ Color: As shown in the picture_x000D_ Product Size: Approx.96x61x34mm/3.78x2.4x1.34in(L x W x H)_x000D_ Panel Opening Hole Size: Approx.92x56mm/3.62x2.2in(L x W)_x000D_ Input Voltage: DC6-60V_x000D_ Output Voltage: Linear under load_x000D_ Output Current: 0-30A_x000D_ Continuous Current: 20A_x000D_ Working Temperature: -45~85_x000D_ Speed Regulation Type: Current regulation_x000D_ Speed Regulation Method: Potentiometer_x000D_ Speed Adjustment Range: 0-100%_x000D_ Control Frequency: 15KHz_x000D_ Wiring Type: Barrier terminal block_x000D_ Knob Cord Length: 18cm/7.1in_x000D_ Speed Digital Display: 0-100 percentage_x000D_ _x000D_ How To Use_x000D_ Get the product and connect the cable according to the correct connection method. If the wrong cable is connected, the screen will not display normally. After the normal installation, you can control the use.