Supports MPPT power point tracking function, which can greatly improve solar energy conversion efficiency. Supports multiple charging methods such as solar panels, Type-C power adapter, etc. Suitable for 6V-24V solar panels, adaptive input voltage, connected through DC-002 power socket or terminal block, with input anti-reverse connection. Onboard multiple status indicators for easy viewing of solar panel and battery status. Onboard anti-overcharge, anti-over-discharge, anti-overtemperature, anti-overcurrent and other protection circuits, working stably and safely. Power management module suitable for 6V-24V solar panels, supports charging of 3.7V rechargeable and dischargeable batteries through solar panels or Type-C interface, supports 5V/3A regulated output. With MPPT power point tracking function and multiple protection circuits, it works efficiently, stably and safely, and can be used for solar power generation, low-power Internet of Things and other green and environmental projects. Due to different batches, there may be differences in product printed text, which will not affect use. Colour:Blue Material:PCB Package Contents: 1 * Solar Power Manager Module 1 * screw pack 1 * battery box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.