This AC/DC adapter output is 3V 4.5V 5V 6V 7.5V 9V 12V 1A Max. 24W. It is easy to set the voltage to fit for different device by a little key.
This power supply can apply to most appliances which the rating input voltage is from 3V to 12V and rating power is equal to or less than 24W.
Equipped with 9 premium adapter plugs[including a micro-USB plug], these different plugs are fit for many different small household electronics. It is an useful spare part for your various devices.
The adapter is very durable and easy to operate. It is with multi safety protection and secure to use. Higher energy efficiency, friendly to the earth.
The polarity of DC plug is inner Positive(+), outer Negative(-). If your device is with inner Negative(-) polarity, please use it with Belker polarity reversed cable together. Search "B07PM24TKV" to find the cable on Amazon.