Check the listing for details. DC 36V 500W Speed Controller Electic Brush Motor Controls for Scooter E-Bike ATV. Condition: New. Listed at 22.77 USD. Features:1.The controller shell is made of aluminium alloy, which can protect the inner circuit and good for heat dissipation to avoid thermal overloading. 2.This item is a brushed motor controller, it can provide steady speed and sensitive control of braking and direction changes. 3.The wires and interfaces are durable, and ensure low malfunction of long time use. 4.The interfaces have instruction labels on them for your easy installation. 5.Suitable for electric bicycles and scooter.Specifications:Suitable Voltage: 36VMathed Motor Power: 500WCurrent Limit: 27A+-1AShort Voltege Protection: 31.5V+-0.5V Wires Interface Definition:1.Red & Black (large cable): Battery connections2.Yellow & Blue: Motor connections3.Red & Blue: Key Switch(power lock)(If there is no power door locks,red connection to blue)4.Yellow & black: brake5.Red & Yellow: Brake light6.Red&Black(small cable): indicator light7.Red, Black & Blue: Speed Regulator 1-4 V(Throttle)(Red:+5v,Black:-,Blue:Signal Wire)8.Red & Black (small cable): Charger Package Included:1 x 36V 500W Brushed Speed Controller