Feature 1This controller is used for emergency battery switching; when there is power on main power source terminal, it will connect to main power as power supply; otherwise, it will automatically switch to backup power source terminal as power supply 2It can automatically switch back to main power source when the power is back 3Designed with screw terminals for convenient wire connection 4Output voltage is the same as input voltage normally 5Widely used for controlling power supply of incubator, laptop, network to achieve uninterrupted power supplySpecification Features: This controller is used for emergency battery switching; when there is power on main power source terminal, it will connect to main power as power supply; otherwise, it will automatically switch to backup power source. It can automatically switch back to main power source when the power is back. Designed with screw terminals for convenient wire connection. Output voltage is the same as input voltage normally. Widely used for controlling power supply of incubator, network to achieve uninterrupted power supply. Specifications: Main Power Voltage: 85V~240V AC Backup Power Voltage: 85V~240V AC Load Current: 10A Mounting Hold Diameter: 3mm/0.1in Quantity: 1 Weight: 44g(approx.) Note: When it switches, there will be a temporary power failure for about less than 1 second. Package Includes: 1 x Controller