Fangrui Product Details And High Quality. Application: For Smart 12v Diy Mini Ups Box Widely Use For Fingerprint Attendance Machine, Fire Safety System, Security Monitoring System, Wireless Camera, Cctv Camera, System,door Security System, Data Assistant, Lighting, Alarm System, Communication Systems, Radio, Digital Cameras, Camcorders, Video Camera And More 5v 9v 12v Devices. As Usb Powerbank For Cellphone Tablet And More Devices,3in1 Design,easy To Use. Input 5.5x2.1mm Port Is For Dc 12-13v 2a,5.5x2.1mm Port Output Is For Dc 12v 2amax,5.5x2.1mm Port Output Is For Dc 9v 1a,usb Output Is 5v2a,suitable For Wifi Router Led Strip Cctv Camera And More 5v 9v 12v Device. The First For Time You Need To Install The 18650 Battery,then Press The Button On The Back Of The Circuit Board To Activate The Use Of This Product,with On Off Power Easy To Use. Different Batches May Have Different Appearances, But Will Not Affect The Use Power Supply: 6pcs 18650 Lithium Batteries(without Battery) Colour:black Material:abs Package Conte