Features1Manufacturing Material: The controller housing is made of high quality aluminum alloy and plastic materials, strong and durable, which undoubtedly extends its service life. 2Groove Design: The groove design can better protect the internal circuit and avoid thermal overload due to its good heat dissipation function. 3Multifunctional LCD4 Display Meter: The LCD4 display meter has a variety of functions that make it easier to view data on the panel. When riding , the product will display many useful data on your bike, such as power display, battery voltage, backlight display, headlight display, brake display, riding speed, maximum speed, total one way distance, PAS marking, 6km/h thrust assist, cruising function, etc. 4Electric Bicycle Lithium Modification Kit: Electric bicycle lithium modification kit contains 17A waterproof controller, LCD4 instrument, 130X dial accelerator, 8C power sensor, a pair of brake handle left and right and one drag four wiring combination kit, suitable for 36V, 48V 350W brushless electric bicycle lithium modification. 5Display Instrument Function Description: Switch button, up button, down button, battery level indicator, throttle marking, 6km/h thrust assist, brake marking, cruising function, travel distance, total distance, backlight and headlight, power sensor marking, maximum speed, riding speed (metric), battery voltage, distance (metric).SpecificationItem Type:350WElectricScooterControllerWeight: Approx.895g / 31.6ozMaterial: Aluminum Alloy + PlasticController Box Size: Approx.93 x 61 x 35mm / 3.7 x 2.4 x 1.4inController Connector Type: Waterproof ConnectorRated Current Of The Controller: 8AMaximum Current Of Controller: 171AController Speed Setting: 1-4.2VController Brake Input: Low LevelApplicable Motor Power: 350WPackage List1 x Controller1 x LCD4 Meter1 x Instrument Instruction1 x Dial Accelerator1 x 8C Assist Sensor2 x Brake Handle1 x 1 to 4 Wiring1 x Controller Wiring Manual