Features1Good Heat Dissipation Function: Controller shell is made of metal with groove design, which can protect the internal circuit and avoid thermal overload. 2Strong Compatibility: S810 display is compatible with 36V and 48V voltage, intelligent power display, truly reflects the battery power, real time recording of power consumption, to ensure riding mileage. 35 Wire Digital Communication: With multifunction self tuning function parameters, users can customize settings according to different models, such as motor parameters, speed parameters, and speed parameters. 4With Gear Memory Function: High, medium and low gear analog torque thrust comes from the switch gear and gear indication display, and the gear state can be automatically restored when the power is turned on. 5Applicable Model: Electric bicycle controller instrument kit includes 30A full waterproof controller, S810 instrument, 130X thumb shifter, 8C booster, brake lever, 1 to 5 cables, tail light, suitable for 36V/48V 1000W motor bicycle lithium battery modification.SpecificationItem Type: Electric Bicycle Controller Instrument KitBooster: 1:5Color: As Pictures ShownMaterial: Aluminum Alloy + PlasticWeight: Approx.1150g/40.6ozController Box: Approx. 150x83x42mm/5.9x3.3x1.7inApplicable Motor Power: 1000WController Connector Type: Waterproof ConnectorController Rated Voltage: DC 36V/48VController Maximum Current: 30AController Speed Setting: 1-4.2VController Brake Input: Low LevelPackage List1 x Controller1 x S810 Instrument1 x Dial Accelerator1 x 8C Booster2 x Brake Lever1 x 1 to 5 Cable1 x Light Wire1 x Tail Light1 x Controller Wiring Manual