Feature 1Included Parts: The electric bike modification kit includes a 25A square wave controller, LCD11 display, throttle grip, and boost sensor, suitable for various DIY modifications. 2Controller Design: The controller has a metal housing, the groove design to ensure good heat dissipation performance, protect internal circuits, and avoid thermal overload. 3Display Functions: When cycling, the LCD11 display panel can display switch button, light switch, battery level, etc., and adopts ABS casing, which is waterproof and durable. 4Applicable Range: This 25A square wave controller kit is suitable for 500W 750W motors, used for DIY electric bikes, electric scooters, electric vehicles, folding bikes, etc. 5Easy Connection: These electric bike accessories have standard connectors and wiring, which are easy to connect and use, and can replace old or damaged ones.Item Type: Electric Bike Modification KitMaterial: ABS, Rubber, Aluminum Alloy, MetalApplication: Suitable for 500W 750W motor, for products with a matching comm protocol for Quando (Namely Comm Protocol No.1)Controller Size: Approx. 125 x 65 x 40mm / 4.9 x 2.6 x 1.6inMaximum Current: 251AController Rated Voltage: DC 36V 48VController Rated Current: 12AController Speed Setting: 1-4.2V .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Controller1 x Boost Sensor1 x Throttle1 x Display2 x User Manual