Upgraded Solar Panel Controller: Compatible with 12V 24V system. This solar charge controller helps you manage the operation of solar panels and battery in solar systems automatically with the built-in industrial microcontroller. You don't need to reset it when the battery is exhausted, because it will remember different parameters set by the user. You can also charge your mobile phone, tablet, PC via the dual USB output 5V/2.5A (max). Safe to Use: Equipped with over-current, short-circuit, reverse connection, low-voltage and overload protection, and has a complete 3-stage PWM charging management. This 30A solar charge controller will help you improve system efficiency safely and extend battery life. Please note: The charge controller is only suitable for lead-acid batteries: OPEN, AGM, GEL. Not support other batteries. The solar controller will automatically turn off to protect your battery life if the battery voltage drops below 8V. LCD Display: Let you know the status and data with the LCD display. You can also change the mode and parameter settings easily and use this controller in different place like home, industry, business etc. Size: Approx. 14.8 x 7.8 cm. Color: Black Quantity: 1 pieceYeuri 1 piceYeuri