1、Practical Use: Enables light control and delay control, adjustable charging and discharging parameters, power off memory, etc. 2、Large Current: Dual USB output enables a maximum current up to 5A, supporting quick charging for phone and other electronics. 3、Clear Display: Large LCD screen can clearly display accumulative power generation, discharge power query, temperature and so on. 4、Safer Working: With built in over current, short circuit protection, open circuit protection and reverse connection protection. 5、Smart Design: Adopting industrial grade main control chip and anti backflow circuit, which ensures ultra low heat generation. 1 x Solar Charge Controller1 x User Manual Item Type: Solar Charge ControllerMaterial: ABSModel: K1688Colour: BlueSystem Voltage: 12V or 24V automatic adaptation. Maximum Photovoltaic Voltage: 50VUSB Output: 2 USB outputs, 5V 2.5A (maximum). Boost Charging Voltage: 14.4VFloating Voltage: 13.7V (default value, adjustable). Discharge Cut Off Voltage: 10.7V (default value, adjustable). Discharge Recovery Voltage: 12.6V (default value, adjustable). Charging Recovery Voltage: 13VStandby Current: <10mAWorking Temperature: -35~+60℃ Maximum PV Input Power 10A 20A 30A Rated Voltage(12V or 24V) 130W(12V) 260W(24V) 260W(12V) 520W(24V) 390W(12V) 780W(24V)