12V/24V Automatic Management: Compatible with 12V 24V systems, help you automatically manage the work of your solar panels and batteries with built-in industrial microcontroller. Dual USB Port Output: This solar charge controller can charge mobile phone, tablet, PC via dual USB 5V 2.5A (maximum) output. High Efficiency: Equipped with over-current protection, short circuit protection, reverse connection protection, low voltage, overcharge protection and 3-level PWM charge management. Help you improve system efficiency safely Quick charger: adopt quick charge, big charge and float charge, realize efficient and fast intelligent charging through the controller, effectively extend the duration battery life. Application: Suitable for solar power generation system, smart home, solar charger, solar ventilation system, solar light box, billboard solar, solar warning light, etc.