2PCS Onite LED Strip Dimmer Switch With USB Female To Male Extension Cord And Rotary Dimmable Control Knob. Review

I bought it to put in my Roof Top Tent, that has a strip of USB LED lights in it. They were too bright late at night, and this works perfectly to dim them. Time will tell if the connectors will hold up.

I used the dimmer switches to connect with VOKARO USB Lights. The lights do tend to warm up a great deal. The dimmer switch helps with that. This is a good purchase for small tasks such as this.

Seemed like a good idea to control a 5v water pump and LED light. It was practically useless as the dial had to basically be on all the way for the pump or light to work. Might as well have used it solely as an on/off switch.

This worked flawlessly for my small USB neon sign. The sign was way too bright when turned on but this allowed me to bring down the brightness in very small steps until it was perfect for my room. Another reviewer said it didn't work for his neon sign but it's not the product it's the type of sign you have. Some need full power or they shut off. But the well built neon signs will allow power fluctuation which mine apparently does. Thank you for a great product. Would definitely buy again.

I had installed LED backlights on my TV, but they were too bright. I put this inline between USB port and the lights and adjusted the brightness. What a difference! Highly recommended.

I purchased a 2 pack of these for use with usb led strips. One worked great but the other one would not turn off the light completely. I ordered A replacement pack and both of those worked great. They are a little bulky but they do their job.

I found these while looking for a way to dim my USB-powered LED bias lighting strip and they seem to work fine. I wouldn't call the construction of the dimmer switches "robust", but they seem like they'll hold up to normal usage. And a pack of 2 for this price is a deal.

I have it controlling a USB heating pad and it works great. The heating pad is rated at 2.0 amps. The dimmer switch handles the current without getting warm at all.My only complaint is that it's hard to see what the dial is set at, there are no markings at all. It would be much better if they had it labeled 1-10 or something.

A great product for dimming neon signs. I wanted to be able to conrol the brightness on small neon signs and bought rhis pack hoping it would help. It was the right choice!

I used these to dim the LED strips in my tent, and they work just fine. The whole dimmer wheel assembly is really oversized, and that is my only criticism at all. Otherwise I’m very happy with this product!

I plugged a small led into this unit and after minimal time is was too hot to handle with bare hands. Also it smelled like burning plastic. Returned to Best Buy.

Received these today. I bought them to control two LED strips I have mounted on my desk. One of the dimmers functions as expected, and powers off when turning the wheel all the way to the left. The other, however, does not. It clicks like you turned it off, but the LED strip is still dimly lit. For my purposes, I'll live with it, but be warned, these don't turn all the way off.

I bought a Luigi statue for my daughter as a night light. Not really it's intended purpose but whatever. Come to find out the light is way too bright! Even for a statue sitting on a shelf the light is ridiculously bright. Bought this dimmer and put it inline with the power supply and now it's perfect!So glad this exists!

I have a USB desktop fan, it was still a little noisy even at the lowest speed. I read on another review for a single speed fan to use a LED Dimmer switch to slow it down even further. However, doing so caused the fan to emit a whining noise which was worse than the fan noise.

I use this with a led light by the bed. It's a great item. Easy to use and I can have all the light I want or don's want. I have a couple of different dimmers and this is my favorite.

I have a small neon usb sign and once I start turning the dial down to dim the light it goes down by barely anything then just shuts off I tried both cables one doesn’t even work at all and the other well like I said dimmed it by barely anything can’t even tell really then just shuts off after a certain point of turning the dial so i don’t know if I got two defective chords considering one doesn’t work at all but not satisfied.

Perfect! was looking for a LED dimmer to connect to my USB bulb using it as a backlight behind my flat screen. Fits the bill to a T and dimmed all the way down makes a great night light.

Converted some LED battery on/off lamps into dimmer hard wired lamps as a night light in my 2-yr old son's room. The USB extension cord may cause issues with other devices plugged into the same port.

Ended up ordering two sets of these. Easy to use. Plug them right up to my Jackery or even my smaller portable power banks and do great. I like to dim our string lights lower to enjoy the star's without being in complete darkness. Definitely recommend these dimmers!

4 stars, because it does work. Connect it, turn the dial, and your device can go from off to barely on to full power.However -- I got it for an LED lamp that continuously cycles through a range of colors, and it turns out that in order to do that, the power has to be on max. I can have a red glow as dim as I want it, but the color change cycle won't start unless I turn up the power all the way. If I unplug it while on a different color, it comes on red again when I reconnect it, and stays that…