8 Tips 3V-12V Adjustable AC/DC Power Supply Adapter Charger Variable Voltage
Output DC Plug: 5.5 2.5mm, 4.0 1.7 mm, 5.5 2.1 mm, 2.5 0.7 mm, 3.0 1.1mm, 3.5 1.35mm, Micro USB, LED converter. Type: Adjustable Power Adapter. DC Output: 3V/4.5V/5V/6V/7.5V/9V/12V. The adapter DC plug polarity is center positive "+".