I want to build a hotwire in the 4k to 5k lumen range with emoli or a123 cells. What is the very smallest c and d host I can possibly use? (preferably mag) I'm not verry concerned with runtime or bulb life. I do prefer higher cct light but Ill take what I can get.
Smallest 4-5k lumen host?
- Thread starter mpteach
- Start date
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sorry it jus came to my mind upon reading the title .....
-> a gas lighter ....
OK if u plan to run 26650 or a123, u can use bodies like leef bodies sold in lighthound.
u may wish to look at here if running 2 or 3 cells(best reference).
u can see FM C body , FM bin pin socket , or all this other goodies .
maybe the rest of the guys can fill in the rest.
-> a gas lighter ....
OK if u plan to run 26650 or a123, u can use bodies like leef bodies sold in lighthound.
u may wish to look at here if running 2 or 3 cells(best reference).
u can see FM C body , FM bin pin socket , or all this other goodies .
maybe the rest of the guys can fill in the rest.
Thanx
I don't get it...sorry it jus came to my mind upon reading the title .....
-> a gas lighter ....
I like the irc 65w bulb for efficiency reasons but I might not be able too fit enough small cells to get high such a high voltage. I'm torn between a HA host and one that poses as a regular cheapy like a mag lol. I prefer the instant start of hotwires it adds to the wow factor. I'm curious though if a hid of this brightness could be made as teeny as hotwire, being more efficient it would need less battery cells leaving more room for the hid guts. I also prefer my lights to be a little on the floody side.
mdocod
Flashaholic
I would personally scour the internet and try to get ahold of a 6C maglight, or try to source some extensions to use on a 4C or 5C version. Using 5 26650 size LiMn cells (~3.8V per cell nominal), you should theoretically be able to run the 64447 (65W IRC bulb)... I suggest using the AW soft-start switch for this and resting the cells for 12 hours before trying to pull the trigger... Might still need a short extension like what AW sells on a 6C for those cells to all fit, not sure to be honest.
This would be over 5000 bulb lumens off the line, not bad.
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If you're set on the 26mm A123 cells, 5 A123 cells driving a 64633 should work, you'd start off ~6500 bulb lumen off the line (that's a little over 4K torch lumen), but it wouldn't be overdriven as much as *ideal* through most of the run, but still not bad. Again this would require a 6C mag size light, possibly with a small amount of extension
This would be over 5000 bulb lumens off the line, not bad.
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If you're set on the 26mm A123 cells, 5 A123 cells driving a 64633 should work, you'd start off ~6500 bulb lumen off the line (that's a little over 4K torch lumen), but it wouldn't be overdriven as much as *ideal* through most of the run, but still not bad. Again this would require a 6C mag size light, possibly with a small amount of extension
The paper casing is just a hair to big to simply drop either battery into a Mag C tube. Is it safe to use Kapton tape instead of the paper insulator?
If imr18650 can be triple-bored than I could fit 6 cells in a 2D host and overdrive a 150w 64633 bulb to a monster8000 bulb lumens. If imr16340 can be triple bored I could fit 12 cells (6series) in 2.5C host or 9 cells + 1 inbthe switch or cap (5 series) in a 2C host.
If imr16340 can be triple bored I could fit 12 cells (6series) in 2.5C host or 9 cells + 1 inbthe switch or cap (5 series) in a 2C host.
DUQ
Flashlight Enthusiast
Reflectors here ---> http://www.cpfmarketplace.com/mp/showthread.php?t=181713
www.flashlightlens.com
www.flashlightlens.com
UnderTheWeepingMoon
Enlightened
I haven't seen any AR coated borofloat windows for Mags but that's not to say they don't exist. I think I read somewhere once, and take this with a grain of salt, that the AR coating doesn't handle the heat from high-powered hotwire bulbs very well and eventually evaporates off the window.
I'll bet the heat from this light will be severe and we do not want to heat the lithium batteries.
mdocod
Flashaholic
About the only thing you can fit "abreast" in a C mag is 4 AAA cells...
Think about it, put 2 16340s just next to each-other, and you have something that is 32mm wide, which is the diameter of a D cell, the diameter of a D cell is probably larger than the outside diameter of a C mag body, so 3 16340s will never fit abreast in there...
As for D mags, they can be bored to fit 3 16340s abreast, or 17670s, but not 18650s, isn't enough material for 18650s.
The highest power low voltage bulb I am aware of of the 64275, which is an axial filament that runs as high as around 50W when overdriven hard, and can be driven on 2 rested 18650 size Emoli cells (similar to IMR18650s from AW)... not sure if it would handle 26650s or not.. Problem with the 64275 is, that it's not the most efficient bulb, so while it consumes a lot of watts, it isn't making as many lumens as higher voltage bulbs that would be running the same wattage. It's in that ~1000-1500 bulb lumen range, so it's not what you are looking for...
Building low voltage high current bulbs is uncommon for a slew of technical reasons I won't get into, but to sum them up, efficiency starts to really drop off on those designs.
You're going to need to do a 12V or higher build to get into that 4K+ lumen range.
If you do decide to start cramming smaller li-ion cells into a mag body abreast, keep in mind the limitations of the cells as far as current is concerned...
you might consider waiting a few months to see if AW released IMR cells in 17500 and 17670 sizes, which would be GREAT for some super compact mag-mods. You could get 6 17500s into a tri-bored 2D, also on the horizon is regulated drivers for mag bodies, which would allow you to run 6 li-ion cells like that, and set a voltage, like say, 19V, to drive the IRC 65W bulb with perfect flat regulation and soft start.
Gunner12
Flashaholic
I'm not sure how small Li-Po batteries can get but many of them can handle pretty high discharges. They are more dangerous then Li-ion batteries if uncared for, but as long as you know what to do, they should be safe.
