It works with 12V devices less than 6W, such as Security Cameras/DVR/NVR/LED strip lights,etc. It works with 12V devices less than 500mA/0.5A,such as 100mA/200mA/300mA/500mA. DC 12V 0.5A/500mA Power Supply Adapter with 1.2 meters/3.9ft cord length. Plug Size: 5.5mm x 2.1mm. Polarity: Center positive(+).Model: CS-1200500. Certificate: UL,FCC, ETL, RoHS, WEEE. Warranty: 2-Year & 30-Day Return without Reason. [UL Certified] Security-01 AC to DC 12V 0.5A 500mA Power Supply Adapter, Plug 5.5mm x 2.1mm,UL Listed FCC,CS-1200500