This AC/DC adapter can apply to most appliances, which the efficient voltage is from 3V to 12V; The maximum output current is 1.2A. Please confirm the Voltage and Current required by the device before use (Not for devices need 2A/2.5A/3A or more! ) This universal adapter output is 3V/4.5V/5V/6V/7.5V/9V/12V Volt 1200mA, input AC100-240V 50-60Hz. You can easily set the voltage by a little key, which included with the adapter. ( Not for devices above 12V DC output! ) Equipped with 8 adapter plugs, 5.5*2.5mm, 4.8*1.7mm, 4.0*1.7mm, 3.5*1.35mm, 3.0*1.1mm, 2.5*0.7mm, 3.5mm mono, 5.0*2.1mm, the different size will fit for your appliances well and solve your various problems. (Please make sure that the plug size matches your device. This power adapter is not compatible with USB-C or Micro-USB end devices!) With safe and multiple function, it's easy to operate, and the adapter is very durable and secure to use. Wide compatibility, suitable for a variety of small household appliances;