YOOFONE 30W Power Supply Adjustable 3V 4.5W 5V 6V 7.5V 9V 12V Universal Switch AC/DC Adapter with 5V 2.1A USB Port, 100V-240V AC to DC 3-12V Converter 1A 1.5A 2A 2.5A with 14 Tips

Parameter Inut: AC 100V~240V 50/60Hz Output Voltage: DC 3V 4.5V 5V 6V 7.5V 9V 12V Adjustable Output Current/Wattage: 2.5A, 30W Max Output DC connector:5.5mm x 2.5mm (inside"+", outside"-") Reverse polarity converter: 5.5mm x 2.1mm 14 Tips Size: 6.5x4.4mm+Pin, 5.5x2.1mm, 5.5x3.0mm+Pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C and DC terminal connector. Power cable length: 4.9ft / 150cm Safety Compliance: FCC / CE/ RoHS / CCC Working Temperature: -10~40? Weight: 0.66 lb / 300g Package included 1x 30W Universal Power Supply Adapter; 14x DC Tips; 1x Reverse polarity converter cable Caution: Indoor use only.(Not waterproof) DC connector polarity: inside Positive(+), outside Negative(-). If your device requires output power with reverse polarity, please use the reverse polarity converter cable that is equipped. Our normal power supply voltage range is 3V~12V. The power cord between the power brick and the DC plug will cause a voltage drop of 0.4V ~ 0.6V, so the voltage is designed with 3.5V~12.5V. In this way, your device can really get 3V-12V voltage.