Feature:1. Included Accessories: Bike lithium modification controller kit contains 15A controller, LCD‑S866 meter, 130X shifter, 8C assist sensor.2. Manufacturing Material: The controller housing is made of high quality metal with grooves designed to protect the internal circuitry from thermal overload due to good heat dissipation. LCD meter adopts high quality ABS material, light, rain proof, sturdy and durable.3. Multifunction LCD‑S866 Display Meter: LCD‑S866 display meter has a variety of functions, LCD backlight display, can clearly display the status and data. When riding a bike, the product will display many useful data on your bike, such as power display, speed display, power indicator, fault indication, total mileage, single mileage, current speed, average speed, maximum speed, gear display, etc.4. Wide Applicability: 15A controller kit is suitable for 250W, 350W motor, suitable for DIY electric bike, electric bike, electric scooter, folding bike, etc. Easy to maintain, the lithium ion bike modification greatly enhances the pleasure of riding and is suitable for cyclists who like a challenge.5. Simple Operation: Simple to operate, easy to use, easy to install and disassemble. Without any difficult requirements even though you use it for the first time.Specification:Item Type:ElectricBicycleModificationKitWeight: Approx.493g / 17.4ozMaterial: Aluminum Alloy + ABS PlasticProduct Size: Controller Box Size: Approx.82 x 50 x 30mm / 3.2 x 2.0 x 1.2inMeter Size: Approx.81 x 48mm / 3.2 x 1.9inRated Voltage Of The Controller: 36V DC 48V DCController Maximum Current: 15AController Speed Setting: 1-4.2VController Brake Input: Low LevelBOOSTER: 1:5Applicable Motor Power: 250W, 350WController Line Color Definition:1. Yellow, Green And Blue Single Big Head Wire: Motor Phase Line2. Red, White, Black, Blue, Green And Yellow Double Row Six Wire Port: Motor Hall