This AC/DC adapter can apply to most appliances, which the efficient voltage is from 3V to 12V.This adapter output is 3V/4.5V/5V/6V/7.5V/9V/12V. You can easily set the voltage by a little key, which included with the adapter.Equipped with 6 adapter plugs, the different size will fit for your appliances well, and solve your various problems.With safe and multiple function, its easy to operate, and the adapter is very durable, its secure to use. Attention If you are looking for an Centra Negative 12W Adapter, please kindly search B01N6327JN or This 6 adapters in1, which can largely save your space and the one can replace a lot adapters. Attention: DC Plug Polarity: inner Positive(+), outer Negative(-), Polarity is irreversible.
