Features        1.[Smart Operating System] This controller adopts an intelligent operating system, advanced control chips and driving algorithms to ensure smooth operation of the wheelchair and a safe and comfortable experience on various roads. 2.[Excellent Security Protection ] It adopts no electromagnetic brake motor, which can realize the slope stop. When it detects that the motor rotation speed is 0 when going uphill, it will automatically brake to prevent the wheelchair from sliding backwards or rolling over. 3.[Special Function] The controller has an alarm sound, and you can flexibly control it to turn off and on. It is equipped with a USB external function to charge other external devices, which is convenient for night lighting. It has the function of vehicle fault detection and alarm prompt, and detects whether the line link is correct. 4.[High-Quality Materials] It is made of high-quality environmentally friendly materials, waterproof and sun-proof, and corrosion-resistant. The lower part is made of aluminum, which dissipates heat quickly and prevents electromagnetic interference. 5.[Multiple Usage] This wheelchair controller fits all brands of wheelchairs. The current output of 0-50A can be adapted to various 24V brushed DC motors such as turbine vortex rods. Ideal for wheelchair users.        Specifications        Chain Size: 4 Inches Product Size: 19x9.3x8cm/7.5x3.7x3.1inch Weight: 1.3KG/2.9lbs        Package Include        1 * Electric Power Wheelchair Controller