Upgraded Solar Panel Controller: Compatible with 12V 24V system. This solar charge controller helps you automatically manage the work of solar panels and batteries in your solar system with a built-in industrial microcontroller. No need to reset when the battery is exhausted because it will remember various parameters set by the user. You can also charge your mobile phone, tablet, PC through dual USB output 5V/2.5A (max) Safe to use: Equipped with over-current protection, short-circuit protection, reverse connection protection, low voltage and overcharge protection, and has a complete 3-level PWM charging management. This 30A solar charge controller will help you safely improve system efficiency and extend the life of your battery Please note: The charge regulator is only suitable for lead-acid batteries: OPEN, AGM, GEL. Any other batteries are not supported. If the battery voltage drops below 8V, the solar controller will automatically shut down to protect the life of the battery LCD Display: Keep you informed of the status and data through the LCD display. You can also switch modes and parameter configurations conveniently, and you can use this controller in different places such as home, industry, and commerce.