1LCD display backlight function, support reading in dark places, simple button operation, easy to use. 2LCD display shows battery power, voltage, current and charge and discharge status, daily power statistics, adjustable charge and discharge control parameters. 3Solar charge controller has load overcurrent/short circuit protection, battery overdischarge/overvoltage/low voltage protection, solar panel/battery reverse connection protection and battery reverse discharge protection. 4Powerful 30A charge controller supports 12/24V battery system, automatic identification and switching, and 3 level power harvesting technology to maximize energy acquisition. 5Solar controller, with current and battery percentage display, with temperature control head, USB interface, supports a variety of battery types, and a variety of battery voltages. Item Type: Solar Charge Controller Material: Aluminum Alloy Battery Voltage Fluctuation: 13.8V (12 System)/27.6V (24 System) Battery (Low Voltage) Protection: 10.6V (12 System)/21.2V (24 System) Battery (Undervoltage) Recovery Voltage: 12.6V (12 System)/25.2V (24 System) Charging Mode: MPPT, PWM MODE Working Temperature: -10-60 Storage Temperature: -30-70 Humidity Requirements: 90% Without Condensation Temperature Compensation:-4mV /Cell / Temperature Probe (Inbuilt Component): NTC 100K Thermistor Maximum Open Circuit Voltage of Solar Panels: 18v-24V (12 System) 36V-48V (24 System) Maximum Open Circuit Voltage of Solar Panels (V): 48V Weight: Approx. 439g / 15.5oz 1 x Controller 1 x Connector 1 x User Manual In order to prevent accidents, non professionals are not allowed to engage in loading and unloading operations.