HIGH COMPATIBILITY: Supports colloidal, sealing, open and lithium batteries, etc., and can be used in household photovoltaic power generation systems, comm base stations, highway monitoring systems, etc. GOOD PROTECTION: Equipped with input power limiting protection, photovoltaic input terminal voltage too high, reverse connection, overload, over power, over temperature, TVS arrester protection. LCD DISPLAY: Using LCD to display operating status, control parameters, etc., users can view various parameters through buttons and modify the parameters to adapt to different systems. DUAL FAN COOLING: The solar controller adopts dual fan cooling system, with current limiting charging mode. When the charging current exceeds the rated current, it automatically reduces the charging power. WIDE APPLICATION: This controller is applied in the solar off grid PV system to coordinate the work of solar panel, battery, and load, and the core control component of the off grid photovoltaic system.