Description: : model name: EM50/4 72300 Voltage: 48v to 72v universal Current: Maximum release current 80A, phase line current 300A Adaptive motor: 400 watts to 2000 watts The default function for controller: Hall Plug, Reverse, Low Brake 0V, Throttle (0-5V), High Brake 12V, Ignition, One-line/Hall Meter Wire, Program Port, Three Speed, Sport Model, Parking, Anti-Theft, Regen Charge, Flux Weaken Current. The appearance may be slightly different due to different factory batches, but it will not affect the use Color: Black Material: Plastic Package Contents: 1*Programmable Controller 1*Cable 1*Programmable Cable 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.