Specifications: Load: Light Control MPN: RBL Charging Mode: PWM Model: RBL-30A System Voltage: 12V 24V Max Solar input(Solar Panel): 36V(24V battery) 18V(12V battery) Max input power: 390W(12V system); 780W(24V system) Equalization:12.6V(sealed) 14.2V(Gel) 14.6V(flood) Float charge:13.7V(defaul,adjustable), 12.0-15.0V Discharge stop voltage: 10.7V(defaul,adjustable), 9.0-11.5V Discharge reconnect voltage: 12.5V(defaul,adjustable), 11.0-13.0V Rated current: 30A Self-consume: <10mA Batteries: Only fit for OPEN, AGM, GEL Operating Temperature: -35℃~60℃ USB output: 5V/2A Max Dimension: 13.4*7*3.3cm LCD display/key and Operations: MENU: Switch between different display, or to enter/exit setting by long press. UP: Press to increase value. DOWN: Press to decrease value. System Connection: 1.Connect the battery to the charge regulator - plus and minus. 2.Connect the photovoltaic module to the regulator - plus and minus. 3.Connect the consumer to the charge regulator - plus and minus. *The reverse order applies when deinstalling! *An improper sequence order can damage the controller! Attention: 1.Press the [Down] button to ON/OFF load manully at main display. 2.The work mode is working as below: [24H] - load output 24hours [1-23H] - load on after sunset and closed after setting hours [0H] - Dusk to dawn 3.Batteries: Only fit for OPEN, AGM, GEL 4.The charge regulator is only suitable for regulating solar modules. Never connect another charging source to the charge regulator. 5.Please make sure your battery has enough voltage for the controller to recognize the battery type before first installation. Package includes: 30A Solar Charge Controller*1 User Manual*1