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https://www.alrightpower.com/power-adapters/

Shen Zhen Alrightpower Technology co., Ltd. is one of the professional power supplies manufacturers of Power Adapter, USB & Battery Charger, and Industrial Power Adapters in China.

Power adapters, also known as AC and DC adapter, AC DC switching power supply, or AC adaptor. It is a type of external power supply. Power adapters by Alrightpower, one of the professional AC adapter suppliers and DC adapter manufacturers, include Wall Mount Power Adapters, Interchangeable Plug Power Adapter and Desktop Power Adapter. Universal AC to DC power adapters by Alrightpower are all with cheap wholesale price and can be used for multi purposes. Available output voltage: 1.5 volt, 3V, 3.6V, 4.5V, 4.8V, 5V, 5.8V, 6V, 7V, 7.2V, 7.5V, 8V, 8.4V, 9V, 9.5V, 9.6V, 10V, 11.5V, 12V, 13V, 13.5V, 13.8V, 14V, 15V, 16V, 18V, 19V, 19.5V, 20V, 21V, 22V, 24V, 28V, 30V, 36V, 48 volt...

Power Adapter Function
A Power Adapter, or AC DC adapter, is an electrical device that can draw input power from the main electrical system and converts the right current, voltage, frequency to the DC that is used to charge the device. And different types of variable power adapters are with different watt, current and voltage. Such as universal 5v power adapter, 10v DC power adapter, 12v 1500ma power adapter, 13.5 v AC adapter walmart, etc. The watt of AC DC industrial power adapters by Alrightpower, a reliable supplier with its own factory in China, varies from 5W, 12W, 45W, 65w, 90W to 120 W, 230W, 400Watt. They can offer power to many kinds of consumer electronics products and household applications such as tablets, beauty devices, humidifiers, massage products and so on.

How to Use Power Adapter
When using a DC wall mount power adapter wholesale with USB Type C port, firstly, you need to check the voltage and current your device need. Make sure your 3 prong or 4 pin AC power adapter's current and voltage suitable for your devices. High or Low voltage and current all may cause many bad effects. Secondly, check the power adapter connector diameter that your devices need. The most commonly used connectors are 5.5*2.1*10mm, 5.5*2.5*10mm or 3.5*1.35*10mm. Thirdly, choose the right AC adapter wholesale polarity, there is positive polarity and negative polarity. If you reverse the polarity, there is the possibility that your devices will be damaged. After confirming the power adapter is surely compatible with your device, just connect the power adapter device and power socket together.

Power Adapter Supply Safety Standards
61558-1, 62368-1, and 60335-1 Safety Standards
IEC 60335-1 is the safety standard of household electronic products and similar electrical appliances.
IEC 62368-1 is a set of safety regulations of Audio video products and information communication technology electronic products.
IEC 61558-1 is the safety standard of class II power supply used for household appliances. Most of the household electronics products are required IEC 61558 standard.