Belker 36W Universal 3V 4.5V 5V 6V 7.5V 9V 12V AC DC Adapter Power Supply for LCD LED Light Strip Router HUB Speaker Smart Phone TV Box 1A 1.5A 2A 2.5A 3A 3000mA Amp Max.

Using these for LED Lego lighting displays. They work great. I like that the voltage setting is on the plug side so it is less likely to get switched after the fact.

A nice voltage adapter... I let it run for a few hours and checked all of the various voltage outputs with my digital multi-meter and they are all mostly within spec. If anything they are just a tad over voltage but it is so minuscule it's not a concern at all. Brand new batteries are a tad over too so the amount that is over spec is of no worries at all. The voltage readouts were all very stable too with no drift either way. The voltage adapter can handle many devices with the use of the included adapter plugs. My particular need was the 5.5x2.5 mm size for my Christmas nativity which I overhauled and installed new LED lighting in it and installed a 5.5x2.5 mm female panel mount jack and a rocker type on/off switch to turn the lights on and off. Very fast shipping on the adapter too. I received it in two days. Thank you!

Purchased a Famicom without a power supply. Needed a 7.6 volt DC supply which is not a common voltage. First we purchased a different brand of dedicated 7.5 volt supply but when we checked it before use we discovered that the output was 8.5 volts, with or without a load applied (measured with a Fluke meter in good operating condition). We rejected that supply and decided to try the "Belker" listed here.. I am happy to report that the Belker supply, when set to 7.5 volts, was measured to be providing 7.6 volts. While that is 0.1 volts over the rating, I consider that to be a negligible error. And since the Famicom is rated at 7.6 volts, this small error actually made it a perfect fit. However, even at the rated 7.5 volts, I feel confident the Famicom would still be happy. So if you have a Famocom, this should get you going. HOWEVER: Never trust a power supply out of the box - manufacturing errors are common - wrong polarity, wrong voltage. It only takes a moment with a meter to verify these things before use. The gadget you save may be your own! Hope this helps. Have fun.

This power adapter "Belker 36W Universal 3V 4.5V 5V 6V 7.5V 9V 12V AC DC Adapter Power Supply for LCD LED Light Strip Router HUB Speaker Smart Phone TV Box 1A 1.5A 2A 2.5A 3A 3000mA Amp Max" comes as listed. It appears to work as listed. Settings for voltages match. Haven't tested amperage rating but I understand amperage should be kept at around 75% of maximum. Voltages measured run a bit high but less than +10% of the listed voltages (+5% to +9%) but without a load. As a load increases I understand I should normally expect a little voltage sag so this is not critical. Overall appears to be good good quality with no excess packaging.

My Kindle charger finally quit. I got good service from it. This Belker charger works great for my Kindle charging fast, and even while charging the Kindle works MUCH faster and better than when the battery gets below 12%. To increase the battery life time, I wait to recharge until I'm below 10%. The original 2013 battery is STILL doing great, and I use my kindle HD several times a day for about 30+ minutes. The many accessory tips will probably make it useful for other devices.

Shipped quickly, works as advertised. I needed it to replace a missing charger for an electric bathroom scrubber. The the voltage selection was easy and the directions were clear. The default tip actually fit so I didn't need the others, but I'm keeping them around. One never knows.

This is a great thing to own especially when you use a lot of different A/C adapters. It's easy to lose one and they can get expensive to replace. This has saved me a fortune in replacements. I could use a dozen more like it but will probably try a few different brands for comparison but I am very happy with this one. It has worked flawlessly on every device I have used it on. It's so simple to use and is quite versatile. I don't know what I would do without mine.

Power supply came packaged very well and even included a special "key" (a regular common screwdriver will work too) to use to select which voltage output you want on the wall wart. It comes with a variety of tips for an array of barrel jack sizes as well as a few non-standard tips that go to some of the more obscure types of connectors out there. I gave the product 3 stars because it didn't have a barrel jack that worked with the device I had. I ended up cutting off the tip and soldering the + and - wires directly to the circuit board in the unit I was working with. Despite that, the power supply itself works perfectly and the device I needed it for works perfectly. I guess it's a bonus that I ended up directly soldering the wires to the board anyway since now the teacher (I work in IT at a school) who lost the original brick can't lose this one too. For others who might use this in a direct-to-circuit board setup like me, the wires inside the power supply cable are red and black. Red is + and black is the - side. (I verified this with a multi-meter in continuity mode.)

I bought this to work with my portable blood pressure measuring device. Though I select the right output voltage it still didn't work!