Techjunkie's Keychain CREE MC-E torch

This video was taken with my Samsung camera phone to demonstrate my latest creation. In the video I compare it to one of what is generally accepted to be the best/brightest keychain torch one can own - a CREE XR-E Q5 1*RCR123A toch with 1000mA buck/boost driver. This new creation utilizes an unregulated driver board which provides multiple modes by PWM without limiting current (or voltage). The driver also has the "good" kind of memory that returns to the last mode used if powered off for a second. (As opposed to the other kind of memory where you have to leave it in a mode for 2 seconds before powering off to avoid switching to the next mode.)

The key features here are the safe chemistry LiMn "IMR" battery, capable of a sustained 8C discharge rate, and the particular host chosen for the mod which has substantially thick metal, excellent for heatskinking.

The torch pull's over 2A on high, 1A on medium and fast strobe, and 200mA on low. On the 550mAH battery, that translates to ~2hrs low mode, 30min medium, 15min high. SOS is probably similar to low, but I can't say for sure.

More about this project here: http://www.candlepowerforums.com/vb/showthread.php?p=2875600

Category:

Howto & Style

Tags:

• Keychain
• CREE
• MC-E
• candlepowerforum
• Techjunkie

[LXXIII]

dude! therealtechjunkie! I've never seen a flashlight so small and powerful. I'm looking for a powerful flashlight I can carry on my keychain. would it be possible for us to discuss a transaction?

[therealtechjunkie]

@LXXIII sure. email me privately at techjunkie at iname dot com. I actually have one like this that I'd like to sell (the TF host in this video died of stripped tailcap threads, the UF one for sale is better). You'll have to get your own IMR16340 battery and charger, but I can show you where.

[therealtechjunkie]

@LXXIII sure. email me privately at techjunkie at iname dot com. I actually have one like this that I'd like to sell (the TF host in this video died of stripped tailcap threads, the UF one for sale is better). You'll have to get your own IMR16340 battery and charger, but I can show you where.

[Hollrobb]

Really nice torchs you have. I have a plastic ever-ready that i sometimes have to smack on the back end of it to get it to work, and with the dollar store(DG) battreys it has a brown tint to the beam.i'am thinking about upgrading to another type, any tips?

[therealtechjunkie]

LOL!

If that's actually a serious comment, then in all seriousness, I recommend getting a Maglite LED 2 D cell sized torch. They have serial numbers etched on the side of them. Get a new one with a serial that begins with "DL". Feed it real alkaline batteries, not dollar store batteries and it will last you forever.

[spiritsword83]

i was thinking about dropping almost $150 on a Jetbeam M1X, but after seeing your video, i'm curious how much doing a swap like yours would be? I'm a complete amateur also, so how difficult is the process? Thanks dude!

[therealtechjunkie]

spritsword83, it's a fun hobby, but pretty difficult if you've never done anything like it before. soldering skills are a must and precision is paramount to success. Also, the materials can be costly if you don't intend to spread the cost over many projects.

[spiritsword83]

Right on man. I think i'll go ahead and just buy the JetBeam M1X! I currently have a Nitecore EZAA for EDC, and a Fenix TK-10 for general use. The M1X would complete the line-up as a super-high-output searchlight for when I go night time fishing out on the coast or camping down at Big Bend. Thanks anyway man, keep the videos coming! :)

[nenothespider]

ok thanks for all!

[therealtechjunkie]

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