Adaptor self-adapting barrel jack size: 5.5mm x 2.1mm (applicable 2.5mm) positive (+) center, Input 100~240v 50/60hz with output dc12v 2amp Certifications: Our 6ft charger cord have over 20 product certifications, including UL-Listed, FCC (US), CE (Europe), GS (Germany), TÜV (Germany), PSE (Japan), CCC (China), EAC (Russia), BSMI (Taiwan), and others, ensuring safety and reliability High Efficiency: Our Level VI power adapters cables offer superior energy efficiency over Level V, resulting in a 10% to 20% energy saving Intelligent Output Adjustment: The class 2 adapter is capable of automatically detecting the current amperage required by the electronic device, ranging from 50mA to 2A, such as 100mA, 250mA, 500mA, 750mA, 1A, 1.5A and so on, with the maximum power of 24 watts Applications: Suitable for CCTV Cameras, GPS, Bluetooth speakers, LED Strips light, LED tape light, keyboards, webcams, routers, audio amplifiers, wireless routers, ADSL modems (Cats), HUBs, audio/video power supply and more 12V electronics. Includes a DC power jack connector for versatility 12v power supply