1、Metal Housing: The controller housing is made of metal with grooved design, which can protect the internal circuit due to its good heat dissipation function, thus avoiding thermal overload 2、ABS Meter: The meter adopts ABS material, which is light and durable, has good toughness and waterproof performance, and provides better protection for the internal circuit 3、Data display: LCD5 display meter makes it easier to view the data on the panel, such as battery display, light display, brake display, temperature, time, speed, distance function, etc 4、Package Contents: The electric bicycle modification kit includes controller, LCD5 instrument, shifter, servo actuator, 1 to 2 cable 5、Scope of Application: Suitable for 250W, 350W brushless motors, mainly used for DIY electric bicycles, electric vehicles, electric scooters, folding cars, etc Item Type: Electric Bicycle Modification Kit Material: Aluminum Alloy, ABS Plastic Controller Box: Approx. 82 x 53 x 31mm / 3.2 x 2.1 x 1.2in (manual measurement allowable error) Controller Rated Current: 7A Controller Maximum Current: 15±1A Controller Speed Setting: 1-4.2V Controller Brake Input: Low Level Applicable Brushless Motor Power: 250W, 350W Connector Type: Full Waterproof Connector 1 to 2 Line Description: One End is Connected to the Controller, the Other End is Connected to the Meter and Dial Controller Line Definition: 1. Red, Black Single Wire: Power Wire 2. Black Single Large Wire (9pin): Motor Wire 3. Black Single Wire (9pin): 1 to 2 Wires 4. Black Single Wire (3pin): PAS Power Sensor Wire 1 x Controller 1 x Meter 1 x Instrument Manual 1 x Throttle Controller 1 x Servo Actuator Sensor 1 x Controller Wiring User Manual 1 x 1 to 2 Connecting Line