5mm LED flashlights & hosts

27 posts / 0 new
Last post
slowtechstef
slowtechstef's picture
Offline
Last seen: 12 months 17 hours ago
Joined: 02/17/2018 - 12:39
Posts: 222
Location: the Netherlands
5mm LED flashlights & hosts

5mm LED flashlights & hosts

Please post any additions, mods, links, pointers, references, mods or otherwise useful information.

  • Arc AAA (1AAA, discontinued)
  • Decathlon B’Twin SL 100 (info)
  • Doctor Lite dual-used 1W headlamp (info, 1AA, 1AAA) also sold as Expedition natur moses 9708
    Notes: headband bit (too) small for grown-ups, fragile plastic construction, battery vampire.
  • Elfeland / Generic Police 3W flashlight (info, 1AA)
    Notes: current version based on solar-charger garden light chip, quits below 0.8V.
  • Energizer 629030 LED Headlight for Kids (info) (2CR2032).
    Notes: solid switch, current-limiting resistor, 20mA through LED.
  • Fenix E01 (1AAA, not mod-friendly!, discontinued).
  • Fenix UC01 (proprietary built-in Li-polymer)
  • Gerber Infinity Ultra (info, 1AA, discontinued)
  • Gerber Bear Grylls Survival Flashlight (info) (1AA, discontinued)
  • Gerber Bear Grylls Hands Free Torch (info, 1AAA)
  • Inova X5
  • Klarus Mi02 (1AAA)
  • Manker Boney (1AAA)
  • Nextorch Eco Star/UL10/UL12 (2AAA). Good mod host for Yuji 5mm LEDs.
  • Nextorch GL10 (proprietary built-in)
  • Nitecore Tube (proprietary built-in). Needs current-limiting resistor mod for Yuji 5mm LED.
  • Nitecore T1 (1AAA)
  • Nitecore Thumb (proprietary built-in)
  • Nitecore NU10 (proprietary built-in)
  • Pak-Lite (9V). Great host for modding with Yuji 5mm LEDs. Also available in “4k” warm white version.
  • Peak Matterhorn (1AAA, discontinued)
  • Photon Microlight
  • Photon Freedom
  • PrincetonTec Bot (2AAA)
  • PrincetonTec Fred (3AAA)
  • Sofirn C01 (1AAA, not mod-friendly!)
  • Varta/Rayovac indestructible keychain light (info, 1AAA). Needs current-limiting resistor mod in case of Yuji mod.

Parametrek 5mm flashlight: http://flashlights.parametrek.com/index.html?led=5mm
CPF: http://www.candlepowerforums.com/vb/showthread.php?424438-5mm-LEDs-Any-love-left

MikeH
MikeH's picture
Offline
Last seen: 2 years 1 week ago
Joined: 09/17/2011 - 08:21
Posts: 26
Location: Kansas, USA

Great idea for a thread, it’s good to see some of these understated lights get attention.

I’ve Yuji modded a few Fenix E01s based on mat_the_cats’s thread:
http://www.candlepowerforums.com/vb/showthread.php?329718-Fenix-E01-Warm...

I ended up using a faucet handle puller instead of a vise, and used the open end of a 1/2” deep-set 6-point socket (fits nice and snug) to cradle the E01 head while doing so.

It’s a doable mod with some preparation and gentle hot air.
Would it help the E01 modding cause to make a thread / guide (with pics) for my attempt as well?

rngwn
rngwn's picture
Offline
Last seen: 2 days 11 hours ago
Joined: 05/17/2018 - 03:44
Posts: 437
Location: 暖武里,Таиланд

Nicron N1 – 1stein’s thread

http://budgetlightforum.com/node/69568

iamlucky13
Offline
Last seen: 6 hours 15 min ago
Joined: 06/22/2018 - 09:18
Posts: 1024
Location: USA

SB Flashlights recently put their stock of Klarus lights on closeout. The Mi02 is similar in size to the Fenix E01 or Sofirn C01. I don’t think it has a potted driver, so it should be possible to desolder and swap 5mm LED’s.

If I ever see a decent price on one, I’m going to pick up a Coghlan’s micro lantern to put a warm white LED in. The Coghlan’s crank flashlight also looks like it has 5mm LED’s.

Lastly, the Eveready PLED23AEH looks like it could be a decent 2xAAA, 5mm host.

snakebite
snakebite's picture
Offline
Last seen: 1 week 5 days ago
Joined: 11/20/2013 - 20:21
Posts: 2057
Location: dayton oh

streamlight stylus.
easy to mod, but uncommon batteries.
3 aaaa

id30209
id30209's picture
Offline
Last seen: 1 hour 40 min ago
Joined: 05/17/2018 - 12:20
Posts: 2046
Location: Croatia

snakebite wrote:
streamlight stylus. easy to mod, but uncommon batteries. 3 aaaa

 

Snake, can you drop some pics of internals/mod? Was thinking about this one

 

WTB Titanium 4sevens 2xAA tube

hank
hank's picture
Offline
Last seen: 1 day 15 hours ago
Joined: 09/04/2011 - 21:52
Posts: 9596
Location: Berkeley, California

Stylus just has a little plastic carrier for the 5mm LED — so the shiny end pushes out the open end of the tube and the two wires go toward the other end; one wire wraps around the plastic carrier to make the positive connection, and the other wire rubs the metal tube for the negative. So you just push really firmly on the existing LED with batteries removed, and it and its plastic carrier will slide back into the battery tube and can be removed. Make sure to note the orientation of the LED plus and minus wires in the plastic carrier.

That’s all I remember from replacing LEDs in Stylus penlights many years ago. I think I had to tap the original LED with a mallet to get it to slide back into the battery tube, and press comparably hard with a pencil inside the battery tube, to get the new LED to slip into place.

snakebite
snakebite's picture
Offline
Last seen: 1 week 5 days ago
Joined: 11/20/2013 - 20:21
Posts: 2057
Location: dayton oh

100%
and if you have a pushable led(ebay high cri or a nichia gs you can eliminate the resistor.
neg lead is pressed against the tube offering a bit of heatsinking.

hank wrote:
Stylus just has a little plastic carrier for the 5mm LED — so the shiny end pushes out the open end of the tube and the two wires go toward the other end; one wire wraps around the plastic carrier to make the positive connection, and the other wire rubs the metal tube for the negative. So you just push really firmly on the existing LED with batteries removed, and it and its plastic carrier will slide back into the battery tube and can be removed. Make sure to note the orientation of the LED plus and minus wires in the plastic carrier.

That’s all I remember from replacing LEDs in Stylus penlights many years ago. I think I had to tap the original LED with a mallet to get it to slide back into the battery tube, and press comparably hard with a pencil inside the battery tube, to get the new LED to slip into place.

id30209
id30209's picture
Offline
Last seen: 1 hour 40 min ago
Joined: 05/17/2018 - 12:20
Posts: 2046
Location: Croatia

Cheers!

WTB Titanium 4sevens 2xAA tube

Agro
Agro's picture
Online
Last seen: 2 min 1 sec ago
Joined: 05/14/2017 - 11:16
Posts: 6821
Location: Ślōnsk
malkoff junkie
malkoff junkie's picture
Offline
Last seen: 1 week 4 days ago
Joined: 12/23/2012 - 19:53
Posts: 1346
Location: Heathrow, London, UK

photon Freedoms x 2 with Yuji 5mm 5600 and 3200 modded.

Malkoff !

snakebite
snakebite's picture
Offline
Last seen: 1 week 5 days ago
Joined: 11/20/2013 - 20:21
Posts: 2057
Location: dayton oh

several photons/fauxtons here with ebay high cri and lir2032.

Unheard
Unheard's picture
Online
Last seen: 9 min 54 sec ago
Joined: 01/16/2019 - 11:38
Posts: 2245
Location: Germany

Has anyone managed to take a Nitecore Thumb apart?

Smile, you cannot kill them all.

Henk4U2
Henk4U2's picture
Offline
Last seen: 29 min 5 sec ago
Joined: 02/13/2014 - 17:52
Posts: 4129
Location: The heart of the Netherlands (GMT+1)

The mod I had in mind had nothing to do with high-CRI, but with a 5mm UV-led.
My original goal was to put it in a Sofirn C01 host, but that is becomimg a matter of much patience.
As for the competition: a lot of lights in the OP are about to be (or already) discontinued.
And the remaining stock is facing rising shipping fees. Anyway, to where I’m standing: in NL

After a bit of *oogling I found one or the last remaining Sunwayman R01A
At Flashaholics.co.uk in the good old UK. Important: reasonable price, reasonable shipping fee.
(Sellers in Germany and France were more expensive plus and wanted €20 for shipping!!)
Minor issue, though not for me: only remaining color available is “tan”.

===

Edit: arrived in less than a week. In perfect order. Even the box. And it has a Nichia led.
Tan color ain’t half bad. Free battery added. These guys are definitely on my short-list now.

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

Henk4U2
Henk4U2's picture
Offline
Last seen: 29 min 5 sec ago
Joined: 02/13/2014 - 17:52
Posts: 4129
Location: The heart of the Netherlands (GMT+1)

I guess I’ve fallen off the wagon. Again. Hard. This time it is just tiny lights.
But even so: I had to raise my (virtual) limit by a dozen (pieces).

Next victim was the Nicron N1, named a few posts before this one.
The old (Polish AE) link doesn’t work anymore. HERE is a new link.
I used a credit card. A bit of a gamble. With PP at least you know who is robbing you.

FYI. BLF-member ReManG wrote a nice THREAD about modding a Manker Boney.
I confess I didn’t get by past the sanding of the head of the led itself and sanding the “reflector” in the bezel. Years ago I bought a couple. The pill has to be pushed out by pressing the led (gently) in.
That went fine with the black copies. The grey one did not budge a bit, not even by force.
But when the pill is out, you have to dissect that for further access. That was a bridge too far for me.

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

Unheard
Unheard's picture
Online
Last seen: 9 min 54 sec ago
Joined: 01/16/2019 - 11:38
Posts: 2245
Location: Germany

Henk4U2 wrote:
The mod I had in mind had nothing to do with high-CRI, but with a 5mm UV-led.
My original goal was to put it in a Sofirn C01 host, but that is becomimg a matter of much patience.
As for the competition: a lot of lights in the OP are about to be (or already) discontinued.
And the remaining stock is facing rising shipping fees. Anyway, to where I’m standing: in NL

After a bit of *oogling I found one or the last remaining Sunwayman R01A
At Flashaholics.co.uk in the good old UK. Important: reasonable price, reasonable shipping fee.
(Sellers in Germany and France were more expensive and wanted €20 for shipping!)
Minor issue, though not for me: only remaining color available is “tan”.


The Fenix flashlight shop has tan and grey-olive. I got a black one from ebay some month ago, too.

I guess you already modded Nitecore tubes? With rngwn’s new 32K-C-EX LEDs those are nice hosts not requiring the resistor mod.

Smile, you cannot kill them all.

Unheard
Unheard's picture
Online
Last seen: 9 min 54 sec ago
Joined: 01/16/2019 - 11:38
Posts: 2245
Location: Germany

Unheard wrote:
Has anyone managed to take a Nitecore Thumb apart?

Found: https://mysku.ru/blog/china-stores/64286.html

Smile, you cannot kill them all.

snakebite
snakebite's picture
Offline
Last seen: 1 week 5 days ago
Joined: 11/20/2013 - 20:21
Posts: 2057
Location: dayton oh

i remember when these were the 1aaa to mod.
dorcy 1aaa

iamlucky13
Offline
Last seen: 6 hours 15 min ago
Joined: 06/22/2018 - 09:18
Posts: 1024
Location: USA

“Life Gear” brand glow stick/flashlight combo. I got these in an 8-pack at Costco for cheap, but I’ve seen them listed on Amazon and elsewhere.

One end is a single color 5mm LED that shines into the diffuser. The other end is cool white 5mm LED.

I immediately started replacing these with rngwn’s high CRI LED’s, as shown in the photo. Heating the solder at both legs at the same time made it easy to pull the LED out, which requires a twisting motion due to the way the legs having been bent past 90 degrees for install. Then a little flux and solder wick allowed me to clear the through holes.

I put a couple more details and a disassembly photo in another thread.

Modes are flashlight only, flashlight + blinking color, flashlight + steady color, blinking color only, or steady color only.

Aside from replacement batteries being overpriced, these are good for small kids. Access to the LR44’s is protected by a small screw. With a low power, warm white LED swap, it matters very little that children tend to shine lights in the eyes of others.

Forsythe P. Jones
Offline
Last seen: 1 week 6 days ago
Joined: 08/15/2021 - 00:40
Posts: 413
Location: California

Oh man, I was really into these back in the day and I still have a lot of them. The smallest is a Photon-like squeeze light but using 2x CR1220 cells and I think a 3mm led, so it’s about half the size of a traditional Photon. Have lots of Arc, Peak, CMG, several Dorcy, etc., plus lots of Photon-style lights of various brands. I was just checking into the 5mm high cri led thread with the idea of modding some of these. Anyway I think there is not really a shortage of them, but if you’re looking for something specific and I have it, I’m probably open to persuasion.

jon_slider
jon_slider's picture
Online
Last seen: 10 min 21 sec ago
Joined: 09/08/2015 - 12:20
Posts: 5051
Location: Central North America

iamlucky13 wrote:

thats beautiful! thanks for sharing a photo

umop 3pisdn
umop 3pisdn's picture
Offline
Last seen: 1 week 10 hours ago
Joined: 08/21/2021 - 05:32
Posts: 5

Gratefully received my order from rngwn and much like others started raiding my old stashes of button cell lights from years past and feverishly modding. It raised a question though…

I’ve been combing data sheets and extensively reading threads but maybe my brain is just uncooperative at present – anyone have any notion on what kind of current I’m dumping into a 5mm LED direct driven from x4 LR41 in series?

Forsythe P. Jones
Offline
Last seen: 1 week 6 days ago
Joined: 08/15/2021 - 00:40
Posts: 413
Location: California

It’s down to the resistance of the LR41 but those little keychain lights do get pretty bright, maybe 50+ mA. You could always check with a meter. (Added: The current will drop very quickly once the batteries aren’t new, so don’t worry about overdriving the leds for long periods. The batteries just don’t have that in them.)

I have a nice little 1x LR44 light with an actual boost converter inside and I love it, but that format never became popular. If you want a very bright keychain light not much bigger, try the Lumintop EDC Pimi. I’m down on Lumintop in general for various reasons, but that particular light has attractions that are not matched by anything else afaik.

1stein
1stein's picture
Offline
Last seen: 7 hours 46 min ago
Joined: 12/24/2017 - 16:25
Posts: 833
Location: Poland

You can add to the list Astrolux TB-01 “Bullet”.
Got a few of them. Easy to mod, widely available and comes in a few colors.

Forsythe P. Jones
Offline
Last seen: 1 week 6 days ago
Joined: 08/15/2021 - 00:40
Posts: 413
Location: California

Of original list I would say Peak Led is likely quite hard to mod because of epoxy potting. Arc AAA may be easier but I don’t think I’d want to mod any of mine, out of tradition or something. Princeton Tec Aurora headlamp should probably get a resistor change. Actually maybe a lot of these lights should get that, due to newer leds having lower Vf(?). The Aurora runs pretty hot as it is, as does the 4aaa original Attitude. The Attitude is likely a good mod candidate though.

If my math is right, the Nichia GS led used in the later Arc AAA, Fenix E01 etc. was close to 100 lumens/watt, not that far off modern leds, though its tint was awful. But that means the earlier leds were a lot worse. It might be worth going back and modding some of the old Tek-tite lights that were pretty bulletproof and therefore still of some interest.

Lights such as Dorcy were moddable but maybe not worth the hassle in this day and age.

I got some good leds from MtnDave and will try modding a few coin cell ights first and going from there. I didn’t get any of rngwn’s this time around. They looked great, but shipping costs from AU would have swamped the cost of a small order.

I have not yet opened up my Photon Freedom and would be interested to hear how to get it open. More ambitiously than changing the led, I wonder what it would take to reflash or change out the microprocessor in it.

Sofirn C01 at least in some versions has a nice high CRI led in warm white already, so why mod? They are just $4 each and are very nice.

Pak-lite, similar to Arc: it’s cool because it’s ready made, but if you want to substitute the leds you might as well make your own version of the light. Two leds in series with a resistor, plus a battery clip that you can scrounge from a spent 9v battery.

umop 3pisdn
umop 3pisdn's picture
Offline
Last seen: 1 week 10 hours ago
Joined: 08/21/2021 - 05:32
Posts: 5

Forsythe P. Jones wrote:
It’s down to the resistance of the LR41 but those little keychain lights do get pretty bright, maybe 50+ mA. You could always check with a meter. (Added: The current will drop very quickly once the batteries aren’t new, so don’t worry about overdriving the leds for long periods. The batteries just don’t have that in them.)

I have a nice little 1x LR44 light with an actual boost converter inside and I love it, but that format never became popular. If you want a very bright keychain light not much bigger, try the Lumintop EDC Pimi. I’m down on Lumintop in general for various reasons, but that particular light has attractions that are not matched by anything else afaik.

Thanks, numbers like that and higher gave me pause but the voltage drop does bring some comfort. My meter seems to struggle to take accurate readings under 500ma or so, I was watching +/- 300ma fluctuation across the 4 cells in series with wide eyes.

The Pimi is a looker for sure, I finally found a home for an e21a I had kicking around – olight i1r2 – so I’m presently set for my micro EDC needs… for now…

Forsythe P. Jones
Offline
Last seen: 1 week 6 days ago
Joined: 08/15/2021 - 00:40
Posts: 413
Location: California

I see the zeroair.org review of the LR44 version of that Streamlight says initial brightness around 15 lumens, i.e. probably 30-40 ma, not too bad. I wouldn’t worry. People have been using 2×2016 coin cell lights for years. The ones with crappy LED’s burn out now and then, but the ones with good LED’s (LRI Photon lights with Nichias) seem to never have trouble.

https://zeroair.org/2020/11/27/streamlight-key-mate-72101-keychain-flash...