I guess a spacer would fix that .
Oddly, this is probably my most-used light since I keep it at work and need it almost daily. I never noticed the whine until I saw it mentioned in another review, but it's there...can't hear it in normal use, though. I think I got mine for $8 on Amazon before it got wildly popular. The price now is ridiculous (I think I saw it for $18.99 on prime day...). It's a good little light and the emitter is wonderful but it's still a cheaply made light. That said, I've had no problems from mine and the tail thread anodizing is holding up fine (I lock it out every time for pockets or sitting on my monitor stand unattended), swivel hasn't become loose or sloppy. The magnet works great and even works great on thin wire rope or 1/2" emt conduit. These angle lights are great for sticking under the hood of the car because you can adjust the beam wherever you need it to be. Replacing fluorescent bulbs in cantankerous light troffers, installing keyboard trays beneath office desks, doing crap up inside suspended ceiling tiles...it's just so handy and plenty bright enough. I put a little disc of DC-Fix on it to smooth it out and it's even better but as-is the Samsung emitter is very good. My one complaint is that I'd like it to come on in low first, and a third mode would be great. A couple years ago they updated it but I don't know what they did exactly. The negative reviews on Amazon - after weeding out the irrelevant ones - are numerous enough to point out that they clearly have some QC issues, and that reinforces my opinion that it's priced way too high now.
I also got the Rofis R2 around the same time, for about $42 I think. It is a MUCH better made light but I actually like and use the Nicron more. The head on the Rofis is so incredibly stiff that I have to use two hands to adjust it and no amount of lube or working it back and forth has helped. That's probably a sign of great construction I guess, but I swear I worked it at least 2,000 times and it's as tight as it ever was...doesn't loosen up with heat from running the light, either. So the Nicron wins there...plus the squared head and hex tail on the Nicron help it not to roll away, moreso than a pocket clip does sometimes. The clip on the Rofis was better so I put it on the Nicron. Ignoring the external magnetic charging on the Rofis (and that they seem to have gone out of business?) it's better made in many ways but for the price and the function drawbacks and a weaker magnet, the little Nicron at 1/3 to 1/4 the price is a no-brainer. It's a shame that you can't get into the Nicron without destroying it. If Nicron would put a couple more bucks of engineering into this model it could be just perfect and I'd happily pay for that.
For $13 think I will get my money worth from mine.
No doubt. On the batteries, I haven't ever had it lose contact and flicker like that (my Convoy M3 certainly does, though, sans magnet). Mine is first generation, so maybe that matters. Generally run the gold Vapcell in it but I've used alkaline and eneloops in it, plus a usb-port Nitecore cell and they all fit fine. I put a flattop Vapcell H10 in it and it seemed to work fine but I didn't knock it around. It'd be easy enough to poke a little piece of foam down there under the spring.
First one from Amazon a week ago had no pwm or buzz. Two I got today had both and a different tint.
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I came here to say exactly this. So I’ll just say, yes, these are great utilitarian lights, and I just got a few more of them to gift to friends and family. They are currently on sale on Amazon for $10.99. Not for long, though. Should have found this forum earlier I guess.
I have 2 N7s. The strong magnet and swivel head are exactly what I needed when I was replacing the O2 sensors on my car, both are barely accessible with the O2 removal tool and ratchet and only visible by braille. The N7 is now my most used light.