Used for joy-con controller charging stand of the for Switch game console, it has output voltage stabilization function, output short circuit protection, and LED light status indication function. It is an application that uses a 5.2V 2A adapter to charge the for Switch game console controller. It has an adaptive voltage control system to ensure the safety of device charging. The controller will stop charging when it is fully charged. The smart chip has the function of controlling the voltage strength to prevent excessive voltage from damaging the device. Protection function: 1. Output short circuit protection function: the output is shut down instantly when the output is short circuited. 2. The product has input overvoltage protection function, which can effectively protect the product from damage due to excessive input voltage. When the input voltage is Greater than 6.2V, it will automatically enter protection mode, and when the input voltage is Less than 5.6V, it will power on again and enter the working state. Notes: 1. Please use thick and short cables for charging USB cables and charging board cables, and weld them well to reduce cable loss and improve efficiency. 2. The USB charging cable needs to use a 3A cable to prevent the cable loss from being too high, causing the total power to be too high, resulting in the 5V 2A charger being disconnected due to overcurrent, so that the game controller cannot be charged normally. The 7-color light automatically cycles in one circle. If you plug in the power cord during the cycle, the cycle stops and the charging mode is directly entered. The default color is red breathing, and the blue light is always on when fully charged. After 10 minutes, the blue light goes out (default mode) Colour:Black Material:ABS Package Contents: 1 x Charging Dock for Switch Joycon