This item is a brushed motor controller, it can provide steady speed and sensitive control of braking and direction changes.The wires and interfaces are durable, and low malfunction of long time use.The interfaces have instruction labels on them for your easy installation.Suitable for electric bicycles, scooter, etc.Rated Voltage: 24VUnder-Voltage Protection: 20 +/- 0.5V, 31.5 +/- 0.5V, 42 +/- 0.5VMatch Motor: 500 W motorSuitable for: Electric bicycle, scooter, etcColour: black + whiteMaterial: metalSize: 8.3 * 6.5 * 3.7cmPackage Contents:1 * brushed controller1 * controller long wire handlebarOnly the above package content, other products are not included.Note:Light 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.