Belker 18W Universal AC/DC Adapter Power Supply - Compatible with 3V, 4.5V, 5V, 6V, 7.5V, 9V, and 12V Outputs

Deb from Philly: Got my HappyLight Duo, Model # VT39WW1 which can be found at: https://www.amazon.com/gp/product/B09RCY2QYF/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
The cord broke where it plugs into my light.

Purchased this cord to replace it. At first had the plug set to 20v, but the light got super hot (not cool) and the light auto-shut itself off (thankfully). Changed the setting to 18v and the light has been working great since then. Not sure it will work with all HappyLight Duo but it works with the white one in the link above.

The model number can be found on the bottom of the base of the HappyLight Duo.

Taking off one star because it should have worked at 20v, but works at 18v. Technically it could be the HappyLight Duo cord that is not meeting it's specs, but the HappyLight Duo cord says "output 20v."

I'm very happy with this cord because when I called Verilux (makers of HappyLight) they said there is no replacement cord for this specific HappyLight but since I've only had the light for under 6 months before it broke they sent me a new complete HappyLight Duo. Problem is I'm *not* cool with throwing a 6 month-old, big *plastic* light into the...

United States on Sep 15, 2023

Terry Slyter: Plenty of versatility with this product. Several adapters for multiple uses make this a great value.

United States on Feb 15, 2023

Jimmy Lee: I originally bought this for a Hello Kitty sewing machine I bought at a yard sale, but it turns out it was broken. I was able to get my wife a Spectra 9 Plus pump, but it didn't have a power cord. I remember buying this because you could adjust the voltage. The Spectra 9 plus requires a 9v, but a lot of ac adapters sold are for 12v, but if you use that on the Spectra, it may fry it because the voltage is too high. So I originally try it with this ac adapter, but it doesn't work. I realize that it was on the 3v setting. I use a screw driver and make it into 9v and it works. The Spectra ac adapter for this pump is like $25, so at $13, it's like half the price.

United States on Dec 28, 2020

Rozalia: As a woman, I am not "drawn" to electronics. However, I have a transistor radio (yes, in this era of iPhones this is historic!). It is battery operated, but I discovered the little input "the female" on the side. With a little bit of research on amazon, that returns fantastic results, I was able to locate this product. The set I ordered has several different heads, "males" and one of them fit right into the hole in my radio.

Now I can enjoy the little radio, right by my side, without having to turn on the big stereo. There is something to be said about having a radio right by my side, within my reach. And, the adapter helped achieve this result.

I don't know, however, what I will do with the other adapters, since I don't see any use for it at the moment.

I will try to sell it on eBay. Or Craigslist.

Thank you for the quality product and making my life so much more enjoyable!

United States on Jul 04, 2020

Erin: I appreciate the key for turning the power dial. I bought this to power an old HDD I lost the cord for in one of the recent moves I have made in the past few years. This replacement works fine, and has very easy instructions. I had to send emails twice to the manufacturer of the HDD to get info on it to make sure it was compatible, and only had to look at the Belker product description once. Thanks for keeping such detailed information on your product, it saved me a headache by telling me exactly what I needed to look for to power the product (that had none of that info at all!). There is a little stand to keep the different plugs together, though I can see the key used to turn the dial going missing. It looks like a coin should be able to turn it though, depending on how thick the coin is, so I'm not too worried if I do lose it. The follow up email Belker sent with tips on how to use the power supply was appreciated as well.

United States on May 12, 2020

Amazon Customer: Does what it is designed to do.

Canada on Dec 10, 2018

Cliff Ross: One out of 2 ordered works the other flickers.

Canada on Oct 21, 2018