The There Are No Stupid Questions Thread

I wouldn’t say easy, you have to deal with this wire mess

It’s really tight, I don’t get why they don’t use thinner wires for the aux LEDs.

Ah I was hoping it was easy. I found TI too heavy.

Is it difficult to transplant the electronics from one d4v2 into another, if I don’t want to mess with the wiring, i.e. don’t need to separate the driver board from the MCPCB? That does leave the matter of the pushbutton.

Reason for doing this: I am sort of wanting a d4v2 with cyan main leds, so obviously it should be in a cyan tube. But my white led one is already in a cyan tube. So I’d want to get the cyan-led light in another color, then switch the tubes around.

Compatibility with the O-rings. Best to not let them turn to pudding.

No you have to desolder the wires, otherwise you can take out anything.

If you got a squeaky trailer, by all means use it on that, but…

I have Wurkkos WK30 with the red / uv / LH351D and I have a S2+ KB CSLNM1.14 blue light

Based on the specs, can I swap the S2+ blue led with the LH351D?
The WK30 turbo is 3.2A vs 5A for S2+.

Can I use toothpaste to remove AR coating on lens?

It doesn’t have to be strictly silicone, but you should avoid using motor oil, petroleum jelly, or lithium grease.

Here’s a useful page over on CPF that identifies excellent, very good, fair, and poor choices in lubes for flashlights: LINK.

I bought a small 1oz tube of Nyogel about 10 years ago. I’ve not even gone through half of it. Great stuff. I also have “Magic Lube II” which is actually a silicone lubricant. You’re not supposed to use silicone grease on silicone o-rings. The black ones tend to be rubber, while the clear/white ones tend to be silicone. I’ve used that lubricant and had no problems.

It should be possible but with 3A it will not be as bright as with 5A. The NM1 has a 3030 footprint so it will not be a direct swap with the LH351D which is 3535. I don’t know if a 16mm MCPCB fits the WK30 or if it uses a custom MCPCB.

Thanks, I won’t go ahead of this. I might just slice the dome.

I would like to drill a 1/4” hole on the Sofirn SP36.
Can someone link me the tool that will create the threads? It’s so shallow I don’t want to buy the wrong ones.

I don’t see how to do that without punching through the light. Just buy a 1/4”x25 hex nut and epoxy it onto the light, I would say.

I have one question for veteran Flashoholics: When is the best annual sale of flashlights?

Could it be on 1 October, the Chinese National Day, since most sellers (including Banggood and Ali Express) are Chinese, or during the Black Friday (26 November), or during the year-end holidays, from Christmas until New Year Day?

I am asking because I am saving all I can to buy a few “big ones” during the biggest sale.

For AliExpress and some other Chinese web shops, it's Single's Day, or 11/11.

Thanks Raccoon City. Noted. Will keep any eye on the 11/11 Sale. :innocent:



Where on the light are you wanting to drill? (and why...?)

The tool you want is called a tap and there are lots of different kinds of them (thread sizes and types, a few other things). You need a) to have enough metal to cut threads into, which is hard on most flashlight bodies other than around the meat of the head usually), and b) to know what size tap/thread you are using and to pick the correct size drill based on that tap size (very important!). Don't drill a hole and then hope the tap works because that's backwards. :)




That's really weird...I can't tell what the differences are, if any. Sofirn often does multiple listings for models that appear to be the same but usually it's a different emitter or temperature...something clear in the description or options. That last link says 6500K down in the text description (below all the extra marketing photos as you scroll down the page) but that's not the temp option up above. I'd message them first to be sure you're ordering what you want - they usually reply very quickly even on weekends. I see one of those listings added the link to the anduril repository, which everyone is supposed to do if they are selling items using the firmware...the other two mention it but don't have the link. But they all look the same to me otherwise.

The last site I think is a retailer, not Sofirn's actual site....I think? There were/are two "sofirn" sites and one was official while the other was a retailer with great prices but I can't recall who was who. It's legit, though.

If you want, it may be worth getting their added battery since they're cheap and fairly decent...as long as there are no Canada issues in the post. The charger is a little cheapie with no fancy smarts inside, but it works well enough.


Add them to Aliexpress cart. The prices changes all the time. Remember to check the App for 10% off coupons as well in the listing.

I definitely got deals randomly.

Starts from 3:15 https://youtu.be/QOMDt66k2ic
More than one person has success with it.

I found this too https://ymwtapsusa.com/download/tapping-tips/USA%20070%20Tapping%20tripod%20mounting%20screw.pdf

Thanks