Function: -（LCD） display: Large LCD display, battery status display, solar panel operating status display, mode control display, load output status and display of all parameters, normal and error status display. -（7 operating modes）: charging mode, lighting control mode, lighting control mode delay control mode, normal control mode, manual control mode, time control mode and test mode. The test mode is intended for factory testing only. -（4 voltages, automatic identification）: Automatically identify DC12V/24V, DC36V, DC48V. Large cross-section wiring connector: With large cross-section and wide spacing connectors, 16 mm diameter cables can be installed. The 7mm line spacing improves insulation efficiency and installation reliability, effectively reduces current and voltage drops, while reducing losses. - （Bold radiator made of aluminum alloy）: Designed with MOS tubes covering the radiator, the heat dissipation is more even and you do not have to worry about the temperature increase caused by the MOS tube. Ma high heat dissipation capacity and can normally work in 55℃ temperature environment. It also has features such as overcharge protection, overvoltage protection, low voltage DC output, high voltage protection, and reverse connection protection. Specification: -Maximum charging current: 100A -Maximum input voltage of photovoltaic modules: 15V-23V (12V), 30V-45V (24V), 45V-69V (36V), 60V-90V (48V) -Maximum input power of photovoltaic modules: 1000W (12V), 2000W (24V), 3000W (36V), 4000W (48V) -Output voltage: DC 12 V/24 V/36 V/48 V DC 5 V/1,5 A (2XUSB) -Auxiliary batteries: lithium batteries and lead-acid batteries -Working Temperature: -25 ℃ ~ 55 ℃ -Cooling method: cooling radiator -Charging method: focused MPPT modulated charging -Number of operating modes: seven -Protection: protection against overcharging, overvoltage/low output voltage DC, high voltage protection, reverse connection protection, etc. -Dimensions (length*width*height): 195*183*68mm/7,68*7,20*2,68 inch List of things to pack -Solar Controller*1 -Instructions for use*1