Features 1STRONG PERFORMANCE: Maximizes the solar system energy utilization with built in tracking algorithm, improving energy efficiency by 15%20%. Supports AGM, gel, flooded and lithium battery charging. 2EFFICIENT MPPT TRACKING: Combines multiple tracking algorithms to accurately follow the best operating point on the IV curve. Achieves up to 99.9% MPPT tracking efficiency. 3HIGH ENERGY CONVERSION EFFICIENCY: Advanced digital power technology improves circuit energy conversion efficiency to over 98%, giving you efficient use experience. 4FLEXIBLE CHARGING PROGRAMS: Offers various charging program options for gel, sealed, flooded, and custom batteries. Limits charging current in case of excessive solar panel power. 5WIDE COMPATIBILITY AND GUARD: Suitable for 12V 24V systems with a wide range of input and battery voltages. With over voltage protecting functions. Specification Item Type: Solar Charge Controller Material: Aluminum No Load Loss: 0.4W Rated Charging Current: 60A Rated Load Current: 20A USB Output: 5V x 3A Conversion Efficiency: 98% MPPT Tracking Efficiency: >99% Temperature Compensation Coefficient: -2mV 2V (Default) Operating Temperature: -10C-+65C ProtectingGrade: IP21 Altitude: 3000m Package List 1 x Solar Charge Controller 4 x Screws 4 x Expansion Screws 2 x User Manuals