1Widely Used: It can be used with fans, monitors, can be used with small outdoor power storage systems, can be used with street lights, can be used with car and boat lights, and can be used for safe power supply, lighting and heat dissipation in pet rooms. 2Maintains Battery Life: The small current charging method is of great help to prolong the life of the battery. This charging method not only saves energy and environment protection, but also maintains the service life of the battery. 3Application Scenarios: It can also perform slow charging to meet the needs of some low power electronic products. Great for outdoor work, travel or camping training. 4Main Function: The main function of this product is to supply power to USB charging electronic products such as power banks, and lowpower products powered by 56v. 5Multi Channel Output: Can directly output USB, DC female 5521, DC male 5521, micro usb male interface. Suitable for single board or multi board use.