Feature:1. Full Kit: There is 22A controller, GD01 panel, 130X thumb throttle, 8C power assist sensor and 1T2 connecting line included in the package, full kit will be enough to meet your needs to upgrade your bike.2. Controller Outer Housing: The controller housing is made of high quality metal with grooves which is designed to protect the internal circuitry from thermal overload due to good heat dissipation effect.3. GD01 Panel: The panel is made of high quality ABS material, light and durable, with fine workmanship, good toughness and waterproof performance, providing better protection for the internal circuit and making it more durable.4. Panel Function: GD01 panel can be compatible with 36V and 48V voltages. When riding a bicycle, the product will display many useful data on your bicycle, such as: intelligent power display, truly reflect the battery power, record the power consumption in real time, ensure the riding mileage, headlamp control, backlight brightness 3 level adjustment, five gear control, mileage display, fault code display, help promote the mode of 6km / h, etc.5. Widely Use: Applicable to 500W motor. Main uses: DIY electric bicycle, electric vehicle, electric scooter, folding car, etc. Easy to maintain, lithium battery modification of bicycle greatly improves the fun of riding, which is suitable for cyclists who like challenges.Specification:Item Type: Electric Bike Motor ControllerMaterial: Aluminum Alloy, ABS PlasticController Box Size: Approx. 120 x 53 x 32 mm / 4.7 x 2.1 x 1.2 in (Allowable error for manual measurement)Panel Size: Approx. 82 x 48 mm / 3.2 x 1.8 in (Allowable error for manual measurement)Weight: Approx. 632 g / 22.2 ozRated Voltage of Controller: DC 36V / 48VMaximum Current of Controller: 22AController Speed Setting: 1-4.2vController Brake Input: Low LevelBOOSTER:1:5Applicable Motor Power: 500WJoint Type: Full Waterproof JointController Line Definition:1. Single red and black cable: Power Cable2. Black single large wire (9pin): Motor Wire3. Black single wire (9pin): 1T2 Wire4. Black single wire (3pin): Power Assist Sensor Wire5. Black single wire (2pin): Light WireGD01 Panel Function Description:1. Adopt two way communication protocol2. Real time speed display3. Kilometer / mile display4. Intelligent power display5. Headlamp control6. Backlight brightness 3 level adjustment7. Fifth gear control8. Mileage display9. Fault code display10. Boost the implementation mode 6km / h11. Parameter setting.Package List:1 x Controller 1 x Panel1 x Throttle Dial1 x Boost Sensor 1 x Controller Wiring Instruction1 x 1T2 Connecting WireNote:Note that the modification kit must be fully waterproof.