Features: brand new and high quality Equipped with battery for protection board: over-current for protection, over-voltage for protection, over-charge for protection, over-discharge for protection. High-performance lithium battery: When the built-in battery is fully charged, it will enter the automatic sleep state, and switch to battery power supply in zero seconds when the power is off, ensuring that the device is in normal use and the device does not need to be restarted. It can be used by ordinary light cats for 8 hours in the event of a power failure. Regulated foot current power supply: 110V-240V wide voltage input, 12V2A regulated foot current does not damage the equipment. Universal interface: outer diameter 5.5mm/0.23inch, inner diameter 2.1mm/0.08inch, 12v outdoor surveillance camera Universal interface. Specifications: Material: ABS Input: AC110-240V 50/60HZ Output: DC12V-2A Size: Approx. 8x14x4cm/3.14x5.51x1.57inch Product Capacity: 1800mah Package Includes: 1x Uninterruptible Power Supply note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.