1. The product is in good condition and meets certain quality standards. 2. It is equipped with a forward and backward two - way toggle switch. 3. The motor speed controller can control the speed and rotation direction of the motor. 4. Speed type: Flow control. 5. Input voltage: DC 10 - 55V. 6. Characteristics: - Power (maximum): 3000W. - Continuous current: 60A. - Maximum current: 100A. - Control range: 0 - 100%. - Frequency: 15kHz. 7. Color: Silver. 8. Material: Metal. 9. Dimensions: 13x9.8x4 cm/5.12x3.86x1.57 inches. 10. Package contents: - 1 motor speed controller. - Only the above - mentioned package contents are included, and no other products are included. 11. Notes: Light and different monitors may cause the color of the items in the picture to be slightly different from the actual object. A measurement error of +/- 1 - 3 cm is allowed.