1. Built-In Lithium Battery, You Can Use It While Charging Without Waiting. The Uninterruptible Power Supply Is A Backup Energy Storage Power Supply. 2. Easy To Carry, Small Size, Easy To Carry When Traveling, Just Put It In Your Bag/Car 3. The Flame-Retardant Shell Is Made Of High-Quality Materials, And The Large-Capacity Lithium Battery Is More , Safe And . 4. It Supports Power Supply For Two Devices At The Same Time, Supports Power Supply For Dual Devices, And Has Intelligent Circuit Design With Overcharge, Overdischarge And Short Circuit Protection. 5. Multiple Outputs, Wide Compatibility With Equipment, Widely Used In Fingerprint Attendance Machines, Fire Safety Systems, Security Monitoring Systems, Access Control Systems, Cameras, Portable , Etc. Input: 85-265VAC Frequency: 50-60HZ Output power (maximum): 18W Working temperature: -10℃~40℃ Humidity: 10%-90%PH Product size approximately: 16CM X 10CM X 3CM Safety protection: overheating, short circuit, overvoltage, overcurrent,