UPS Endurance Power Supply Monitoring Switch CCTV Camera Adapter DC 12V 2A/2.5A

Easy to Install:Theproduct is easy to install and set up. Connect it to your devices and plug it into a power source. Styles:12V 2A,12V 2.5A(Output, Optional). With its high-capacity battery, it can support long hours of operation without interruption.

eBay