12V for Dc Rechargeable Lithium battery, 5000mAh high capacity, small size and easy to carry. Inner (+), Outer Negative(-).5.5x2.1mm port output is for Dc 5V2A,9V/1A,12V/1A,Suitable for wifi Router CCTV Camera and more 5V 9V 12V device.Mini UPS uninterruptible power supply is a standby energy storage power supply. safe and environmental lithium cells, This mini UPS with perfect over-, over-discharged, over-current and short-circuit for . use,you must adjust the voltage turning on the switch,5V 9V 12V can be adjustable,if the 5.5x2.1mm port can not fit your devices,you need to buy convertor,for light , CCTV Camera, IP Camera , LED Panel, Amplifier, Modem, Speaker, Car DVR and more.Item Type: UPS Uninterrupted Backup Power SupplyColor: BackCapacity: 5000mAhSize: 9.5x5.5x4.2cmCable length: about 118cminput: AC 100-240V 50/60Hz5.5x2.1mm port output: for Dc 5V2A,9V/1A,12V/1A maxColour:blackMaterial:plasticPlug Type: US Plug, it applies to Canada, , Mexico, Thailand, Taiwan, the , the Philippines and so on.Voltage: AC100-240VPackage Contents:1 x Backup Power SupplyOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.