Supports MPPT (Maximum Power Point ) function, maximizing the efficiency of the solar panel,Multi protection circuits: over charge / over discharge / reverse protection / over heat / over current, stable and safe to use<br> Supports solar panel / USB connection battery charging<br> For 6V~24V solar panel, DC-002 jack input or screw terminal input,Onboard MPPT SET switch, select the level closed to input level to improve charging efficiency<br> Two 5V output interfaces: pinheaders and USB port,Onboard high capacity aluminum electrolytic capacitor and SMD ceramic capacitor, reducing the ripple, stable performance<br> 14500 battery holder and PH2.0 battery connector, for connecting multi kinds of 3.7V Li battery,Several LED indicators, for monitoring the status of solar panel and battery<br> Overview<br> This solar power management module is designed for 6V~24V solar panel. It can charge the 3.7V Li battery through solar panel or USB connection, and provides 5V/1A regulated output.<br> The module features MPPT (Maximum Power Point ) function and multi protection circuits, therefore, it is able to keep working with high-efficiency, stability, and safety. It is suited for solar powered, low-power IoT, and other environmental protection projects.<br> Solar panel input voltage (SOLAR IN): 6V~24V<br> Micro-USB input voltage (USB IN): 5V<br> Pinheader / USB output (USB OUT): 5V 1A<br> Charging cutoff voltage: 4.2V±1%<br> Over discharging protection voltage: 2.9V±1%<br> Solar panel charge efficiency:: ~78%<br> USB charge efficiency:: ~82%<br> 3.7V battery boost output efficiency: ~86%<br> Max quiescent current: less than 2mA<br> Operating temperature: -40℃~85℃<br> Dimension: 65.2mm x 56.2mm x 22.9mm<br> Note: the 14500 battery is NOT included.<br> color:Blue<br> Material:PCB<br> Package Contents:<br> 1 x Solar Power Manager<br> Only the above package content, other products are not included.<br> Note: Light shooting and different