Features 1、Grooves Design: The controller housing is made of high quality metal with grooves design to protect the internal circuitry from thermal overload due to good heat dissipation. 2、Diverse Features: Brushless motor controller provides steady speed, responsive braking and directional change control. 3、Good Performance: High performance cable and interface, durable, ensuring long term use of low failure rate. 4、Simple Operation: Brushless motor controller is easy to install and use, with wiring identification instructions, usually suitable for 750W brushless motor. 5、Manufacturing Material: Made of high quality aluminum alloy material, it is strong and durable, which undoubtedly extends its service life. Item Type: 750W Electric Bicycle Controller Weight: Approx.409g / 14.4oz Material: Aluminum Alloy Controller Box Size: Approx.125 x 66 x 39mm / 4.9 x 2.6 x 1.5in Controller Type: Sine Wave Controller Connector Type: Common Connector Maximum Current: 25±1A Rated Voltage: DC 36V/48V Speed Setting: 1-4.2V Rated Current: 12A Brake Input: Low Level Low Voltage Protection: DC 30/40±0.5V Controller Line Color Definition: 1. Long Black Cable: Motor Cable 2. Red And Black Single Large Cable: Power Cable 3. Red, Blue, Black, Green And Yellow Five Cables Port: Meter Cable 4. Red And Black Cables (2pcs): Light Cables 5. Red And Blue Cable (2pcs): Power Off Brake Handle Cable 6. Red And White Cable: Throttle Dial Cable 7. Brown, Black And Yellow Cable: PAS Assist Sensor Cable Package List 1 x Controller 1 x Manual