AC to DC switching power supply suitable for security cameras, gauss meters, and many other portable electronic devices. Light weight, compact and efficient switch mode design incorporates highly regulated output within ± 0.25V of rated output, even with no load. Input: 100V~240V, 50~60Hz so it works anywhere in the world. Output: choose either 9 or 12VDC … 500mA max. 5′ output cord with 2.1mm, positive tip plug style. North American plug, But can be used with any international plug converter.