Feature: 1. MAIN PURPOSE: Solar charge controllers help you automatically manage the work of your solar panels and batteries with built in industrial microcontroller. 2. DUAL USB OUTPUT: Compatible with 12V 24V voltage system, also can charge mobile phone, tablet, PC with dual USB output 5V 2.5A (maximum). 3. PWM REGULATION: Adopt fast charging, large charging and floating charging 3 stages PWM regulation to achieve efficient and intelligent charging. 4. CIRCUIT PROTECTION: With overcurrent, short circuit, reverse connection, low voltage, overcharge protection to improve efficiency and prolong battery life. 5. WIDE APPLICATIONS: Suitable for solar power generation and ventilation systems, smart homes, solar light box, billboard and warning light, etc. Specification: Item Type: Solar Charge Controller Rated Discharge Current: 10A Maximum Photovoltaic Voltage: 12V system < 25V, 24V system < 50V USB Output: 5V 2A maximum Standby Current: <10ma Working Temperature: -35℃~+60℃. Package List: 1 x Solar Charge Controller1 x English User Manual Note: No need to reset when the battery runs out, because it remembers various parameters set by the user