Features1Comprehensive Protection: The lithium conversion kit has protection functions such as under voltage protection, over current protection and stall protection to ensure the use and safety of the electric bike. 2ABS Housing: The display is made of ABS material as the housing, which is lightweight, robust and well made, with good toughness and waterproof performance. 3Fast Heat Dissipation: The controller housing is made of aluminium alloy with a grooved design, which allows for fast heat dissipation and ensures the internal circuitry, thus avoiding thermal overload. 4Main Purpose: Lithium conversion kit for DIY electric bikes, electric cars, electric scooters, folding bikes, etc. to enhance the riding pleasure. 5Stable Performance: The lithium conversion kit is reliable and stable, easy to maintain and suitable for people who like a cycling challenge.SpecificationItem Type: Electric Bike Conversion Controller KitMaterial: Aluminum alloy, ABSController Maximum Current: 151AController Power: 250WProduct Application: For 36V, 48V 250W motorsPackage List1 x Electric Bike Conversion Controller1 x Display1 x Thumb Throttle1 xSpeed Assist Sensor2 x Instruction