Deror Solar Charge Module 1A 4.2V 3.7V 18650 LiPo Li-ion Lithium Battery Charger MPPT Solar Charge Controller Module-with Pin-

Specification: Item Type: Lithium Battery Solar Charge Module LED Indicator: ''CR'' LED is charge status indicator; ''OK'' LED is fully charged OR constant voltage mode Dimension: 18x10.16x2.7mm Options: with Pin, without Pin Weight: 0.9g(with Pin), 0.6g(without Pin) Instruction: The adaptive unit on the module can adjust charging current automatically based on the output capability of input power supply, so it is ideal for the solar-powered systems, or the applications that need to charge lithium-ion battery or lithium polymer battery with an input power supply whose output capability is limited. If your solar panel is 5V, then you can use it directly. Of course, the module can also be powered by a 5V DC power supply. Package List:1 x Solar Charge Module