Breadboard Power Module: the module is designed for the convenience of experiments on the breadboard, onboard 3.3V, 5V DC output pin charging mode. Improved Charging Modes: You can use USB-C to directly charge the module and power the breadboard, or insert the rechargeable batteries into the battery slot of the module. Power Display: there are four led lights to show the remaining power, which is convenient for you to check the power and ensure the normal progress of the experiment Maximum Output current: 2.4A, but considering the module heating problems and life problems, we very recommend you to use under 2A. The output voltage is 3.3V or 5V. Application: the power module is widely used in MCU, electronic building blocks, intelligent cars and other power supply extensions. It comes with USB Type-A interface for the power output of external devices, and can also be used as a mobile power supply for other devices.