Features 1、Good Heat Dissipation Function: Shell is made of aluminum alloy with groove design, which can protect the internal circuit and avoid thermal overload. 2、Strong Compatibility: Suitable for bicycle lithium battery modification with 36V/48V 250W brushless motor. 3、Display Instrument Functions: For example, switch button, battery level indicator, gear 3 LED indicator, 6km/h thrust assist. 4、LED880 Display: Meter has a variety of functions, allowing you to more easily view the data on the panel. When riding bicycle, it will display a lot of useful data on your bicycle. 5、Electric Bicycle Controller Display Kit: Includes 15A ordinary square wave controller (motor waterproof head), LED880 display, 130X dial accelerator, 8C power assist sensor combination kit. Item Type: Electric Bicycle Controller Instrument Kit Material: Aluminum Alloy + Plastic Weight: Approx.493g/17.4oz Controller Box: Approx. 81x52x31mm/3.2x2.0x1.2in Controller Type: Square Wave Controller Controller Connector Type: Ordinary Connector (except Motor Waterproof Connector) Controller Rated Voltage: DC 36V/48V Controller Rated Current: 7A Controller Maximum Current: 15±1A Controller Speed Setting: 1-4.2V Controller Brake Input: Low Level Controller Low Voltage Protection: DC 30/40±0.5V Applicable Motor Power: 250W Instrument Function Description: Switch Button, Battery Level Indicator, Gear 3 LED Indicator, 6km/h Thrust Assist Package List 1 x Controller 1 x LED880 Display 1 x Instrument Manual 1 x Dial Accelerator 1 x 8C Power Assist Sensor Cable 1 x Controller Wiring Manual