Feature 1 Automatic identification of system voltage 12/24V. 2 Clear LCD screen shows charging and discharging status intuitively. 3 User-friendly control panel design, easy to set up various parameters. 4 Battery undervoltage protection function. 5 With USB 5V charging interface for mobile phone. 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.