Features1Manufacturing Material: The controller housing is made of high quality metal with grooves designed to protect the internal circuitry from thermal overload due to good heat dissipation. 2Brushless Motor Controller: Electric bike brushless motor controller provides steady speed, sensitive braking and directional change control. 3High Performance Wire and Durable Interface: The high performance wire and durable interface ensure low failure rate for long term use. Suitable for 36V, 48V 250W, 350W motors. 4Easy Maintenance: For mountain bike lithium battery modification, easy maintenance, electric bike and moped modification conversion, greatly improve the fun of riding, suitable for cyclists like challenges. 5Simple Operation: Simple to operate, easy to use, easy to install and disassemble. Without any difficult requirements even though you use it for the first time.SpecificationItem Type:ElectricBicycleBrushlessSquareWaveControllerWeight: Approx.213g / 7.5ozMaterial: Aluminum AlloyVoltage: 36V, 48VCurrent: 15APackage List1 x Controller1 x Manual