Feature:1. MPPT POWER POINT TRACKING: The power management module supports MPPT function, greatly improving solar energy conversion efficiency for optimal performance.2. VERSATILE CHARGING: Compatible with various charging methods such as solar panels and TYPE C power adapters, the power manager offers flexibility and convenience for different power sources.3. WIDE VOLTAGE RANGE: Suitable for 6V‑24V solar panels, the power management module can be connected via DC 002 power socket or terminal block for easy installation.4. INTUITIVE INDICATOR LIGHTS: Equipped with multiple status indicator lights, allowing users to easily monitor the status of solar panels and batteries at a glance.5. COMPREHENSIVE SAFETY: Integrated with safety circuits including overcharge, over discharge, over temperature, and over current safety, ensuring stable and safe operation.Specification:Item Type: Solar Power Manager Material: PCB Input Voltage: 6V-24VCharging Method: Solar Panel, Power Adapter, USBBattery Specification: 3 x 18650 (not included)USB Input Voltage: 5V (TYPE C interface, support for PD fast charging protocol)5V Output: 5V 3A (terminal block, TYPE C)Charging Cut Off Voltage: 4.2V ± 1%Over Discharge Voltage: 3.0V ± 1%Solar Panel Charging Efficiency: Approx. 78%USB Charging Efficiency: Approx. 93%Battery Boost Output Efficiency: Approx. 90%.Package List:1 x Solar Power Manager Module1 x Power Box