Multiple protection: built-in overcurrent/protection function, open circuit protection, reverse polarity protection, they are self-recovering, do not hurt the panel solar controller, more safe applied in home, industry and so on.30A Solar Charge Controller: Anern solar panel charge controller has full 3-stage PWM charge management, improving the efficiency of the system. Fully 3-stage PWM regulation charging with direct charge, boost charge, floating charge three-stage PWM regulation charging mode. Using the controller to realize efficient and fast intelligent charging, and effectively extend the battery life.Functional LCD Display: Easy to install and operate, intuitive LCD display, which can clearly display the status and data, is able to switch modes and parameter configuration, the level of complete cut-off is adjustable, which can perfectly protect the lithium battery from over-discharge, suitable for home, industry, commerce, etc.Battery Type: The charge controller is only suitable for lead-acid batteries: OPEN, AGM, it is not suitable for nickel-hydride, lithium, Liions, or other batteries.The built-in industrial microcontroller can automatically control the work of solar panel and battery to charge.Widely Used: Outdoor solar controller with two USB ports is compatible with 12V/24V systems; the 5V/2A USB port supports charging cell phones or other 5-voltage devices, which can protect the lithium battery from overcharging and discharging, suitable for home, industry, business, etc.