Features:  This intelligent controller suitable for various solar applications, it protects the battery from being over-charged and over-discharged.  Features a innovative MPPT intelligent tracking algorithm that maximizes the energy from the solar PV module(s) and recharge the battery, with max 99.5% conversion efficiency.  Provides RS485 communication protocol, capable of wifi remote monitoring and external screen controlling, real time monitoring the controller's operating status.  LED display with backlight, easy operation, support Chinese-English menu , you can see the data clearly.  Equipped with warning indicator light, recharging indicator light, and loading indicator light.  A remote temperature sensors is used to collect battery temperature for temperature compensation of control parameters.  Suitable for battery types of leadacid battery, lithium iron phosphate battery, and ternary lithium battery.  Dual cooling fans design to ensures fine heat dissipation performance.  The recharging process has been optimized for long battery lifespan and improved system performance.  Wide applications, suitable for various working environments, such as outdoor travel RVs, solar power systems, farms, yachts and ships, solar billboards.    Specifications:  Name: Solar Controller  Material: plastics+aluminum    Rated system voltage: 12V/24V/36V/48V Auto Recognition  Controller working voltage: 11-64V  Rated power: 800W/12V; 1600W/24V; 2400W/36V; 3200W/48V  The maximum open circuit voltage of photovoltaic modules: 150V(at the lowest temperature); 138V (at the temperature of 25℃)  Rated battery current: 60A  Max. solar input power: 720W/12V; 1440W/24V; 2100W/36V; 2800W/48V  Conversion efficiency: 97.5%  MPPT tracking efficiency:  > 99.5%  Temp. compensation: -3mV/°C/2V (default)  Working temperature: -20℃ to 50℃  Storage temperature: -40℃ to 70℃  Humidity ranges: 0-90%  Item size: 219 * 300 * 110mm / 9.62 * 11.81 * 4.33in  Item weight: 2770g / 6.11lb  Package size: 350 * 250 * 160mm / 13.78 * 9.84 * 6.30in  Package weight: 3230g / 7.12lb    Packing List:  1 * Solar Controller