Power Failure Automatic Switching Battery Controller Board DC 12V-48V Emergency Automatic. When the DC power supply is powered, the power supply is preferred; when the DC power supply is powerless, the battery is automatically switched. The indicator lights up when the power adapter is powered on, and turns off when the battery is powered.
Applicable voltage: DC 12V-48V
Product load: 10A
Product Size: approx. 50x30x18mm
Installation size: 23mm(2 holes*3mm)
1 X DC 12V-48V Power Failure Automatic Switching Battery Controller Board