1Large LCD Display Screen: Display of charging and discharging current; Query of accumulated electricity generated and discharged; Temperature display; Optical control and delay control; The charging and discharging parameters are adjustable; With power off memory and other functions. 2Dual USB Output: The solar charge controller supports dual USB output, maximum current up to 5A, supporting charging for iPhone. 3Multiple Protection: Built in over current, short circuit protection, open circuit protection, reverse connection protection are all self recovery type, without damaging the controller. 4Safe Charging: Adopt industrial grade main control chip, complete 3 stage charging management, anti backflow circuit, ultra low heat generation. 512V 24V Voltage Automatic Adaptation: Connect the positive and negative poles of the battery to the controller, and the controller will automatically detect the battery voltage.