Belker 45W 5V 6V 7.5V 9V 12V 13.5V 15V Universal AC DC Power Supply Adapter for Household Electronics LED Light Strip - 1A 2A 3A 3000mA Amp - Fast USB Charging Port 5V 2A

Lots of plug adapters and works well.

It fits everything i need

I use this in my garage connected to a power outlet. I had a battery-powered electric door lock and the battery would always drain or not be long-lasting. This was the solution! On the back of the power supply is where you can adjust what voltage is needed. It's easy to calculate and I'll give an example. My battery-powered door lock takes 4 AA batteries. Each battery is 1.5 volts. Multiply that by 4 you get 6 total volts. I set up the power supply for 6 volts. I soldered in the red power and black ground to the terminals on the battery supply which is on the motherboard of my electric door lock. It works and uses 100% max power each time whereas a battery that gets drained decreases the amount of max power. I am very happy that a product like this exist and I'll be buying more to put in more electric door lock around my house.

The AC adapter is a pretty good value for the cost. The additional USB plug is a good plus.One of the thing on about these cheap AC adapter is the poor load regulation. A good regulation is the output voltage does not increase or decrease as the load increase. Most AC adapter does not do that. With this in mind, the AC adapter was tested for load regulation on the 5V, 12V, and 15V setting.For the 5V setting, it would appear the AC adapter was designed to a +/-5% tolerance. Under the the load load condition, the output is 5.309V, a little higher than the 5.25V for 5% tolerance. Under the maximum 3A load, the output voltage is 4.775V, again, very close to the 5% tolerance. For the efficiency, overall, very good. It performed in the 80% tile. See the attached plots for the details.For the 12V setting, it performed a little better. For the no load condition, the output is 12.428V and under the 2A maximum load, the output is 12.11. This is about a 3.5% tolerance. As for the efficiency, the 80% tile is reached if the load is 400mA and greaterFor the 15V setting, this has the best performance. For the no load condition, the output is 15.289V and under the 2A maximum load, the output is 14.943, this is below the 3.5% tolerance of the 12V setting. The efficiency also has the best performance. It was the most stable out of the three tested setting.

Very happy with my purchases bought it to charger my Bluetooth speaker but it also can charger my tooth brush and razor lol

Really a great selection of plug types. The voltage settings work nicely but the key they provide is essential.

Very easy to set up, change the tips, and voltage.

It shows to be a universal ac adapter, I plugged it into my trimmer and it is not charging. I don't see what I'm doing wrong, but it still doesn't work and now I'm stuck with this mess and I will be trying something else