1、Good Heat Dissipation: The controller shell is made of high quality metal with groove design. Due to its good heat dissipation function, it can protect the internal circuit and avoid thermal overload. 2、LCD4 Display: The LCD4 display has a variety of functions, making it easier for you to view the data on the panel. When riding a bicycle, the product will display many useful data on your bicycle. 3、Data Dispaly: Power display, battery voltage, backlight display, headlight display, brake display, riding speed, maximum speed, total and one way distance, power assisted sensor sign, etc. 4、Applicable Model: This electric bicycle brushless motor controller is easy to install and use, suitable for 36V/48V 250W brushless motor electric bicycle lithium battery conversion. 5、The electric bicycle lithium battery modification kit includes 15A full waterproof controller + LCD4 meter + 130X thumb throttle+ 8C power assist sensor + brake lever left and right pair + one to four cable combination kit. Item Type: Electric Bicycle Controller Display Kit Material: Aluminum Alloy + Plastic Product Size: Controller Box: Approx. 81x52x31mm / 3.2x2.0x1.2in Controller Connector Type: 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 Function Description of Display Instrument: Switch button, up button, down button, battery level indicator, throttle sign, 6km/h thrust assist, brake sign, cruise sign, travel distance, total distance, backlight and headlights, power assisted sensor sign, maximum speed, riding speed (metric system), battery voltage, distance (metric system). 1 x Controller 1 x LCD4 Dispaly 1 x Dispaly Manual 1 x Thumb Throttle 1 x 8C Power Assisted Sensor 2 x Brake Lever 1 x 1 to 4 Cable 1 x Controller Wiring Manual