Main Features:

*【Batteries can be installed】There are 6 slots for 18650 batteries inside the solar panel, the slots are standard 18650 battery size, you can easily install the batteries.
*【Mcu Charge Management】Low power consumption MCU core processor, the whole panel charging and discharging for fine management, to ensure that the panel runs well.
*【Monocrystalline silicon solar panel cells】Solar cells use monocrystalline silicon, which has the highest conversion efficiency of 23%, to improve the efficiency of converting sunlight into electricity.
*【Constant Current Voltage Regulator Circuit PCB】Built-in PCBA to output stable 5V voltage from the battery through constant current circuit to supply your device and keep him running well.
*【Solar & DC power input】The panel can be charged in two ways, you can charge him via sunlight or you can also charge the battery in the panel via a 5V2A power adapter.
*【Iindicator lamps】The back of the panel is designed with 3 status indicators, making it easy to understand the working status of the panel as well as troubleshooting.
*【Outdoor waterproof IP66】The panel is designed for outdoor use and is waterproof to IP66.
*【Overcharge and Overdischarge】The overcharge voltage is 4.25V and the overdischarge voltage is 2.8V, which protects your battery more safely and prolongs the life of the battery.

Batteries not included!!!If you can't buy 18650 batteries, do not purchase this product! Do not purchase it!!!