1、[DUAL USB PORT] The load can be set to work mode, dual USB ports adjustable power rate, USB output up to 5V, 5A. 2、[MICRO PROCESSOR] This solar charger controller is equipped with an industrial grade microprocessor to control the charging and discharging process with stable performance. 3、[CLEAR DISPLAY SCREEN] The solar controller comes with a backlit display that clearly indicates status and data, and allows easy switching of modes and parameter configuration. 4、[MULTIPLE PROTECTION] Solar controller comes with short circuit protection, open circuit protection, reverse protection, overload protection, safer to use. 5、[AUTOMATIC IDENTIFICATION] The solar controller is rated at 12V, 24V and can be automatically identified for easy use and installation. 1 x PWM Solar Controller1 x Red PV Cable Set (1 wire, 4 connectors, 4 terminals)1 x Black PV Cable Set (1 cable, 4 connectors, 4 terminals)  1 x Instruction Manual Item Type: PWM Solar ControllerMaterial: ABSUse: Applicable to home, industry, commerce, etc.Rated Voltage: 12, 24V Automatic identificationRated Discharge Current: 10AMaximum PV Voltage: Up to 23V for 12V battery Up to 46V for 24V batteryBattery Type: B1=acid battery 12V,24V battery automatic identificationB2=Lithium ion battery (lithium battery) 3 strings of 3.7V= 11.1VB3=Lithium iron phosphate battery 4 strings of 3.2V= 12.8V12V Charging Cutoff Voltage: 14.4V (B1) 12.6V (B2) 14.6V (B3) (red font is for 12V, parameter multiplied by 2 for 24V)24V Charging Cutoff Voltage: 28.8V (B1) 12.6V (B2) 14.6V (B3)12V Discharge Cutoff Voltage: 10.7V (B1) 9V (B2) 10V (B3)24V Discharge Cutoff Voltage: 21.4V (B1) 9V (B2) 10V (B3)12V Discharge Recovery Voltage: 12.6V (B1) 10.5V (B2) 12V (B3)24V Discharge Recovery Voltage: 25.2V (B1) 10.5V (B2) 12V (B3)12V Light Control On Light Threshold: PV panel 8V (light control on light with delay)24V Light Control On Threshold: PV panel 16V (light control on with delay)12V Light Control Off Threshold: PV panel 8V (light control off with delay)24V Light Control Off Threshold: PV panel 16V (light control off with delay)USB Output: 2 way USB output, 5V/ 2.5A (maximum)Standby Current: <10mAPhotovoltaic Cable Wire: 6mm² Length: Approx. 3m / 9.8ft (single)Operating Temperature: -35℃-60℃