Input voltage: DC10-60V Output voltage: linear under load Output limit current: 20A (use 10A for a long time, within 450W, pay attention to keep the module unobstructed and heat dissipation conditions) Limit power: 1200W Speed regulation type: flow regulation Speed regulation mode: potentiometer (linear) Duty range of speed regulation: 0--100% Control frequency: 25KHZ Wiring Type: Terminal Blocks Module size: length * width * height 77MM x 45MM x 28MM Make that the positive and negative connections are correct powering on, and the wiring should not touch the heat sink Colour:green Material:ABS Package Contents: 1 x DC Motor Speed Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.