Features: Automatic identification of system voltage 12/24V. Clear LCD screen shows charging and discharging status intuitively. User-friendly control panel design, easy to set up various parameters. Battery undervoltage protection function. With USB 5V charging interface for mobile phone. Specification: Model: Solar80 Rated operating current: 80A Cable: 7#AWG (10mm2) Rated working voltage: 12V / 24V Solar panel voltage: 48V Floating charge voltage (settable): 13.8V/27.6V Low voltage protection (settable): 10.7V/21.4V Low voltage recovery (settable): 12.5V/25.0V No-load loss: 25mA Working temperature: -10~60 Storage temperature: -30~70 Humidity requirements: 90%RH Dimension: 128*188*61mm / 5.0*7.4*2.4in Mounting hole diameter: 5mm Hole pitch: 98*178mm / 3.9*7.0in Package list: 1 * Solar Charge Controller 1 * Connector 1 * User Manual Note: Due to the difference between monitor and light effects, the pictures may not reflect the actual color of the item. Please allow slight error due to manual measurement. 1Automatic identification of system voltage 12/24V. 2Clear LCD screen shows charging and discharging status intuitively. 3User-friendly control panel design, easy to set up various parameters. 4Battery undervoltage protection function. 5With USB 5V charging interface for mobile phone.