Input voltage: DC6-60V Output voltage: linear under load Output current: 0-30A Continuous current: 20A Speed regulation type: flow regulation Speed regulation mode: potentiometer (0-5V) Speed range: 0--100% Control frequency: 15KHZ Wiring Type: Barrier Terminal Blocks Knob length: 20CM Module size: length * width * height 78MM x 45MM x 28MM Motherboard installation size: length x width 72MM x 39MM Potentiometer according to the installation opening: 7MM Colour:Photo Color Material:PC+metal Package Contents: 1 x Frequency converter 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.