Led Driver 100-240V AC to DC Power Adapter for Charger 3V 4.5V 5V 6V 7.5V  12V 8V 9V 10V0.5A 1A 2A 3A EU US plug 5.5 mm x 2.1 mm  

* 100% new 100V-240V AC to DC Power Power Adapter

* Input: 100 V ~ 240 V, 50 ~ 60 Hz
* Plug specifications: EU / US plug
* Adapter connector: inside positive (+). Outdoor negative (-)
Options:
* DC plug 5.5 mm * 2.1 mm
* External Diameter of DC plug: 5.5 mm. Inner diameter: 2.1 mm