1Adopt ABS flame retardant shell, fireproof, antishock, corrosion resistance, sturdy and durable, inbuilt circuit protection to prevent defects such as reverse polarity, sparks, overcharge, overcurrent, open circuit, short circuit, overheating, etc. 2Compatible with 12V/24V system. Discharge current 30A, built-in industrial microcontroller, automatically manage the work of solar panels and batteries in the solar system. Dual USB ports, support mobile phone charging. 3Equipped with LCD display, which can clearly display the charging status and data and battery status and data. The solar charger can easily switch the mode and parameter configuration. 4In order to protect the battery life, once the battery voltage exceeds the range, the solar charge controller will automatically shut down. 5Solar charge controller should be connected to the battery first, then to the solar panel, and finally to the load. LCD display, adjustable parameters, suitable for household, industrial, commercial, etc. Item Type: Solar Charge Controller Material: ABS, Aluminum Alloy Rated Charge and Discharge Current: 12V/24V Automatic Identification System Voltage: 12V/24V Automatic Identification Battery Input Voltage Range: 50V Maximum Input Open Circuit Voltage: Plumbic Acid (Default) / Colloid / Open Battery Type: Plumbic Acid (Default) / Colloid: 14.2V/ Opening: 14.6V Boost Charging Voltage: Plumbic Acid (Default) / Colloid / Opening: 13.8V Floating Charge Voltage: Plumbic Acid (Default) / Colloid / Opening: 12.6V Low Voltage Recovery Voltage: Plumbic Acid (Default) / Colloid / Opening: 10.8V Low Voltage Disconnection Voltage:1 x Controller 1 x User Manual