Features Charging voltage: 3.6-13.8V Input Voltage: 96-264Vac Output Voltage Tolerance: +-1% after 40mS Output Voltage: 11-15Vdc Output current: 5A Adjustable time: 0-45s With Backup Battery Capacity Battery is not included The battery can be: PL4.512 / PL712 / PL912 12 VDC output energized 1-45 seconds time delay Dimensions: 8.44 x 2.79 x 7.87 in (214.5 x 71 x 200 mm), Weight 1.95 Kgs UPS FUNCTION Uninterruptible Power Supplies, known as UPS, supply power through an AC voltage input. When the input power source fails, the battery supplies the output power. When the battery voltage drops to 10.5V, it gets disconnected in order to protect the battery life. Note: Battery is not includedSet the power supply to a voltage of 12.90 VDC for optimal operation. Key Features Universal 96-264 VAC Input for Worldwide Compatibility Adjustable 11-15 VDC Output at 5 Amps Maximum External Battery Backup Support for Continuous Operation Programmable 0-45 Second Timer for Access Control Compact 8.4 x 2.8 x 7.9 Inch Design for Space Saving Automatic Uninterruptible Operation During Power Failures