The Display is easy to install, with clear screen display and powerful functions 2. Brushless Hub Motor Electric Bike Kit 3. The controller has a headlight function, making it more convenient and safe for you to ride at night LCD Display Type : S900 LCD Display Voltage : 24V 36V 48V 52V 60V 72V Plug : 5Pin Female SM Plug Holder Diameter 22mm Cable Length: 30cm (SM) 80A Controller : Maximum current:80±1A Size:18511350 mm Weight:1173g Mosfets:18 mosfets Cable length:all about 13-18cm Rated voltage:DC48V/72V Speed set:1.1-4.2V Rated current:40A. Package includes 11set E-Bike Controller Set.