i can’t get that link to work…
but this is the same one here: >> https://www.pencilthings.com/product-p/mei%20mx4028.htm
I used a single/dual on/off micro DIP switch. i used a 22 ohm , 1/8 watt resistor for the “on” mode, and used a 400K ( 400,000 ohm) 1/8 watt for the night glow mode that is wired direct to the battery holder.
Thanks for the details! Also, the link should be fixed.
Great video and some very nice mods. A few comments:
“We’re all familiar with the foxton”
You mean the fauxton. “faux” being french and pronounced “pho” and means fake. It is still pronounced pho-ton. Get the joke? 
I do agree with you on CR2032 being a nice little battery. It is my favorite for last-ditch lights.
Those remote phosphor LEDs look great! I’ve just looked through 2000 products on Aliexpress and Alibaba trying to find a supplier. Came up empty handed though. Tell us if you ever manage to find them.
I also really like the idea of the always-on firefly bypass resistor. I will have to add that to some of my lights.
Allow me to introduce you to my favorite little lantern: https://www.coghlans.com/products/led-micro-lantern-0842
It runs on 2xCR2032 and comes with a Nichia LED. It has possibly the most impressive diffuser I’ve seen on a lantern this size. Conical mirror combined with a reeded linear optic. Of course I replaced the LED with a 3200k yuji. The keychain junk was replaced with a lanyard. I make my lanyards a bit longer than yours - just long enough to slip over a door knob. The battery situation was trickier. What I ended up doing was replacing a CR2032 with a thin rare earth magnet. So now it is dimmer and I can stick it just about anywhere between the lanyard and the magnet.
The king of lanterns. You have had hours of fun and amusement there and no doubt a little frustration at times. 
You made me decide to buy 2 lights. 
The NEBO and the smallest CR2032 ones. Though I fail to find a cheap source of the latter, FT seems the best, $3.51 for a 10-pack with the BLF coupon. I have a feeling they can be had for less…
As to remote phosphor LEDs - I also failed to find any. Though I see that diffuse lenses are easy to get. I suppose they are not good enough?
I have seen those in photos, but we never had them here in Canada to get my hands on one to modify. 
Yes very much so for the frustration at times, but the quest to create the perfect tiny lantern has always been a goal.
I wish i knew who makes those remote-phosphor warm-white 5mm LEDs, as they are the most efficient, widest light-angle tiny low-power LEDs i ever seen. these seems to glow the brightest of any LED i ever tested for a white LED on a 300K+ or higher resistor. (other than the tiny straw-hat blue LEDs) So far its only in the Walmart $1 garden solar lights i have found them.
I had a search last night for the remote phosphor LEDs and couldn’t find any, but just did a quick google for 360 5mm LED and there are a few in the image search.
The other ones I thought may be good for a even light are the filament LED, like you get in retro bulbs. They are easy to find on eBay, aliexpress etc.
Maybe sanding the dome on one of rngwn’s LED’s would result in a comparable light distribution? There would be a little bit of light loss, but it should diffuse it.
I have thought about trying those filament LEDs, they do seem like a good idea for small lanterns. I was always curious though of their efficiency vs. amp draw, as the filament LED used a couple dozen tiny separate LED diodes along a micro PCB strip, coated in a remote phosphor “tube” as such, versus a single remote-phosphor 5mm that uses a single LED diode in the center. Some of those 5mm LEDs in that 360 degree search does look close to the ones i have.
yep, did that too it does increase the light distribution, but it does create some light loss.
That’s really cool man, I like it.
Want one?
Or Two?
I’m sure Amazon or Walmart will ship to Snowlandia…
i can;t find them on our amazon.ca site, or our wallyworld.ca site. :sunglasses:
They are at amazon.ca: Amazon.ca
I’ve also bought unbranded clones but I can’t find them anymore on aliexpress/dx/banggood.
Just 2 cents, by sanding down the dome of LED, you might want to leave some slight arc to mitigate the output loss due to (total) internal reflection. (And that’s the reason why the wide angle LEDs are strawhat-shaped)
For regular LED epoxy, the refractive index should be about 1.5, which translates to ~41 deg of critical angle. That means the incident angle from the phospors to the furthest edge of the dome should not exceed that angle (or try to minimize the distance towards the edge where the critical angle would be exceeded), or the light will go backward due to the internal reflection.
For some odd reason they won’t ship to my address… :person_facepalming:
If you want, I can order it for you and ship it at your place.