Wide Compatibility:The solar charger controller with 30A rated discharge current is compatible with 12V or 24V system automatically, suitable for lead-acid batteries: OPEN, AGM, GEL. Dual USB 5V/3A output ports support mobile phones, tablet PCs or other devices that require 5V voltage. Multiple Intelligent Protection: Built-in overcurrent protection, short circuit protection, reverse connection protection, open circuit protection, all automatic recovery, no damage to the controller, a reliable protector for your devices. Functional LCD Screen:Easy to install and operate, Intuitive LCD display that can clearly indicate the status and data is able to switch modes and parameter configuration, The level of complete power-off is adjustable, which can perfectly protect the lithium battery from over-discharge, suitable for home, industrial, commercial etc. 3 Stage PWM Control Charging:Fully 3 stage PWM regulation charging using direct charge, lifting charge, floating charge 3 stage PWM regulation charging mode. Using the controller to realize efficient and fast intelligent charging, and effectively prolong the service life of the battery. Easy to Use:The charge controller should connect the battery first, then the solar panel, and finally the load! You can change the settings by the simple one-button operation. Rated Voltage: 12V/24V Charge Current: 30A Discharge Current: 10A Max. PV Voltage: 50V Max Solar input:.Items from Sheng Xinshun's shop