Features: Can support AC and DC input. Non-existent power supply polarity problems. Ultra-high voltage scope, support 15-160V DC Input. support 12-110VAC input. It can driver the Dc motor which voltage is 12V/24V/48V/110V, current < 5A, resistance > 2Ω, power < 400W Large heat sink, and equipped with mounting holes. Ultra-high-power control. Max 5A current. Except the board inside a PWM speed control, can also support an external PWM signal input speed control, external PWM input requirements: level 3.5-12V VPP, the frequency of 1K-5KHZ, in particular apply in MCH3 spindle speed control. Equipped with a fuse protection and better performance. With power indicator, and more convenient to use. Adopts of high quality voltage limiting resistance to reduce module heating and improve working stability. Application: Dc pumps, fans, engraving machine spindle and other equipment dc motor speed for accurate speed control. Specifications: Model:DM-1105S-L Voltage input: 15-160VDC ,12-110VAC Max current: 5A Weight: 149g Package includes: 1 x Motor Speed Controller Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1、Can support AC and DC input. Non?existent power supply polarity problems. 2、Ultra?high voltage scope, support 15?160V DC Input. support 12?110VAC input. 3、It can driver the Dc motor which voltage is 12V/24V/48V/110V, current 2Ω, power &lt; 400W 4、Large heat sink, and equipped with mounting holes. 5、Ultra?high?power control. Max 5A current.