Feature:1. MAIN PURPOSE: Helps you automatically manage solar panel and battery with built in industrial microcontrollers, compatible with 12V 24V systems.2. DUAL USB OUTPUT: This solar charge controller has dual USB output 5V 2.5A (maximum), which can charge mobile phones, tablets, PCs, etc.3. 3 STAGE PWM: Adopts fast charge, large charge and floating charge 3 stage PWM regulation to realize efficient and fast intelligent charging4. CIRCUIT PROTECTION: With overload, overcurrent, short circuit, reverse connection, undervoltage and overcharge protections for improved efficiency and 5. MULTIPLE USAGES: Suitable for solar power generation systems, smart homes, solar ventilation systems, solar light boxes, billboards and warning lights, etc.How to Use:1. Connect the battery, solar panel and load (in the correct order)2. Unscrew the screw, put the wire in the small hole and screw it in to tighten itSpecification:Item Type: Solar Charge ControllerSystem Voltage: 12V/24V automatic adaptation (11.1V 12.8V adjustable)Rated Discharge Current: 10AMaximum Photovoltaic Voltage: 12V system < 25V, 24V system < 50VStandby Current: <10mAWorking Environment Temperature: -35℃~+60℃Application: Suitable for solar power generation systems, smart homes, solar chargers, solar ventilation systems, solar light boxes, solar billboards, solar warning lights, etc. Package List:1 x Solar Charge Controller1 x English User Manual