Feature 1Excellent Metal Shell: This lithium battery conversion kit is made of excellent metal material for the shell, which has a good heat dissipation function and can protect the internal circuitry so as to avoid thermal overload. 2Excellent ABS Material: This lithium battery conversion kit is made of excellent quality ABS material for gauges, which is lightweight, sturdy and durable, with fine workmanship, good toughness and waterproof performance, providing better protection for the internal circuitry and making it more durable. 3Multifunctional LCD8H Display: This lithium battery conversion kit features a multifunctional LCD8H panel that will display many useful data on your bike, such as on and off buttons, light switches, battery level display and other functions, one display can keep you in control at all times. 4Wide Application: This lithium battery conversion kit has a very wide range of applications and can be used for DIY, electric car, electric scooter, folding car and so on. 525A Square Wave Controller: This lithium battery conversion kit uses 25A square wave controller, which is easy to operate and very practical.Item Type: Bike Lithium Battery Conversion KitMaterial: ABS, Rubber, Aluminum Alloy, MetalApplicable: Suitable for 500W750W motor. Matching communication protocol for the use of forQuantum products (commonly known as the first communication protocol).Controller Size: Approx. 125 x 65 x 40mm/4.92 x 2.56 x 1.57inMaximum Current: 25 1AController 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 Power Assist Sensor1 x Thumb Throttle1 xDisplay1 x Bracket4 x Gasket2 x Screw2 x Manual