Universal AC Adapter 5V 9V 12V 2A DC Power Adapter Adjustable Power Supply | Adjustable Voltage, 12V AC Adapter Kit, 3V 4.5V 6V 7.5V 2A DC Power Adapter for LED Strip Light CCTV Camera Speaker Router

This unit is excellent with variable output and really ideal for small battery /low voltage lights. Disconnect the battery box, use one of the supplied connectors, set the required voltage ( 1.5 volts per AA or AAA battery. 2 batteries equals 3 volts, 3 cells equals 4.5 volts. ) and plug in. No more battery issues.

Works with lots of old handhelds I had lying around. Would definitely buy again.

This product replaced a bucket full of chargers of various voltage and amperage with different-sized connectors. I like having one charger that I can dial to voltage and attach the appropriate plug. Great product!

Works good for what I needed it for

I have 2 of these and they are well made and work nicely to replace battery packs that the tiny LED Xmas light strings use. We were going through batteries so I decided enough was enough and wired these in place of the battery packs. They come with every size of typical DC connector I could imagine. There is one (included) for stripped wire. The switch to select the voltage seems well made.

Very easy to use.and to switch to a different adaptor...

Works exactly as advertised. Good value

I’m using this to reduce voltage to a small DC motor to slow the spin rate of my record cleaning kit. This gives my records more time in an ultra sonic bath. Perfect.

Highly recommended. Very well engineered unit. Package can be opened by removing two small screws & splitting the clamshell. Output voltages match the labelling quite precisely. Selector switch is robust - no 'iffy' voltage settings. Main output connector is commonplace 2.1/5.5 mm barrel connector, my overwhelming favourite. I wish a companion unit was available with a higher range of output voltages, say 6.0 to 28 volts [at half the output current, of course] with otherwise identical mechanical features.

Comes with many adapters. Best product to replace battery operated power sources.

works perfect

This adapter has all the voltages needed for radios, tape recorders, and other devices common in one's home. The only thing I don't like is that it only has the + center pin. DO NOT BUY if your equipment hqas a (+) center pin. Using this adapter on such a device could ruin it.

Almost burnt down my Christmas tree... I used it to power the tree star at the top that runs on 2.4-3v... but the 3v on the adapter gave 3.5v (which I didn't measure beforehand...)... All other outputs are also "off", but in a certain acceptable range (e.g. 4.5v is 4.6v). In the morning, I plugged it in... and at some point in the afternoon, i could smell something "burning"... I noticed that the Star was turned off.. When I got near, the smell was worse, the adapter was barely touchable (hot) and the star was ruined... I unplugged everything and took measurements, and that's when I noticed the output voltage...