SOLAR CHARGE CONTRALLER: WERCHTAY Solar Charge controller compatibility with 12V and 24V system, Discharge Current: 10/20/30/40/50/60A; dual USB output 5V / 2.5A, Build-in industrial microcontroller for automatical management, memorizing various parameters set by the user and the data wont be lost when the battery runs out, suitable for lead-acid batteries: OPEN, AGM, GEL. 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 three-stage PWM regulation charging mode. Using the controller to realize efficient and fast intelligent charging, and effectively prolong the service life of the battery. 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.