Features1Good 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. 2LCD3 Display: The LCD3 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. 3Data Dispaly: Battery display, backlight display, headlight display, brake display, ambient temperature, motor temperature, one way time, total travel time, current speed, maximum speed, etc. 4Applicable Model: This electric bicycle brushless motor controller is easy to install and use, suitable for 36V/48V 500W brushless motor electric bicycle lithium battery conversion. 5Package List: The electric bicycle lithium battery conversion kit includes a 17A ordinary square wave controller + LCD3 display + 130X thumb throttle + 8C power assist sensor combination kit.SpecificationItem Type: Electric Bicycle Controller Display KitMaterial: Aluminum Alloy + PlasticProduct Size: Controller Box: Approx. 125x66x38mm/4.9x2.6x1.5, Dispaly: Approx. 96x65mm/3.8x2.6inController Connector Type: Ordinary Connector (Except the Motor Line Is Waterproof Connector)Controller Type:SquareWaveControllerController Rated Voltage: DC 36V/48VController Rated Current: 11AController Maximum Current: 221AController Speed Setting: 1-4.2VController Brake Input: Low LevelController Low Voltage Protection: DC 30/400.5VApplicable Motor Power: 500WDisplay Function Description: up button, switch button, down button, battery capacity indicator, backlight and headlights, brake display, one way time, total travel time, power display, motor Celsius temperature, motor Fahrenheit temperature, environment Celsius temperature , environment Fahrenheit temperature, 6km/h thrust assist, riding speed (metric), riding speed (imperial), maximum speed, average speed, distance (metric), distance (imperial), riding distance, total distance, battery voltage, power assist sensor sign,cruisefunction.Package List1 x Controller1 x LCD3 Dispaly1 xDispalyMounting Frame4 xDispalyMounting Bracket Gasket2 x Dispaly Mounting Frame Screw1 xDispalyManual1 xThumb Throttle1 x 8C Power Assist Sensor1 x Controller Wiring Manual