SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm

It does what you want and does it very well, but also gives you so much more for the money you pay. There are plenty of advantages over your standard Wall Wort type Power adapter, among which are: You get a digital display that shows the DC voltage output value, which is also what you use to set the desired output voltage level. The potentiometer is very smooth and not too tight, such that it's easy to achieve the actual voltage value you need. The output voltage is accurate to what is displayed on the display of the power adapter, and also it's easier to use than many of the standard AC/DC power adapters in that you have a long cord that gives you a nice tight plug to use to plug into the outlet verses several other Power Adapters on the market what contain the transformer within the plug that you plug into the outlet source. The vast and large selection of adapters that are included with the power adapter also mean that this is a multipurpose Power Adapter that you can use with several different devices requiring many different plugs. This means you only need one adapter rather than one for each device, or you have one adapter that works across several other devices. As long as you specify the correct amperage sufficient to operate all your different DC devices, you only have to make one purchase rather than many different ones.

Me gustó que puede usarse para varias entradas eléctricas. Lo necesitaba por un juguete que llegó sin eliminador de corriente. Gracias

Works great as a replacement for outdoor speakers

منتج ممتاز جدا انصح فيه، تقدر تغير فرق الجهد على احتياجك، انا استخدمه في شحن بطارية ليثيوم و ايضا جهاز قص الفلين، بالنسبة ليا له عدة استخدامات و لا لقيت افضل منه في السوق.

Esta Fuente está funcionando a la perfección. Se las recomiendo mucho.