Wide CompatibilityThe solar charge controller with 30A rated discharge current is automatically compatible with 12V or 24V system and suitable for lead-acid batteries: OPEN, AGM, GEL. USB Output: 5V/1A Max. Reliable ProtectionThe solar charge controller features over-current protection, short-circuit protection, reverse polarity protection, protection against low voltage and overload, providing reliable protection for your devices. With full 3-stage PWM charge management. Functional LCD Display12V/24V PWM Solar Panel Controller Regulator The intuitive LCD screen, which can display status and data clearly, is able to switch modes and settings, suitable for home, industry, commercial, etc. Heat dissipation Temperature compensation, dual mosfet reverse current protection, output of reduced heat. Extend battery life and keep charging. Easy to useThe charge controller needs to connect the battery first, then the solar panel, and finally the load! With dual USB charging port for your convenience. You can change the settings with a simple one-button operation.