Sold/Expired Interest thread: bodies for 27LT

Codeman

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Leef - do you have any plans for a Ti 18650 body?
 
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yaesumofo

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The PD is 1x cr123 or rcr123 flashlight. The 27LT is a 2X cr or rcr 123a cell flashlight.
Correct.

What I ment to say in my post (I was half asleep) is that The single cell body I have for the 27LT runs the light at a pretty darn low level.
I beleive the 27LT runs best when fed 6-7.2 volts.
Try it.
UNless some sort of magic is performed, The light produced by a 27lt head driven by a single cell will not satisify.
PLease don't take this as a critisism of these bodies I like them and do want one.
The simple fact is they (the single cr123 /rcr123 and 18650) will underdrive the 27LT head. I do not beleive that the 3.7 Volts produced by the 18650 cell is enough to kick the 27LT into high gear either.
The unit I am interested in is a 2 cell body with a clicky. That will work great!! A clicky on a 27LT ? Oh YES!!

Yaesumofo
1xcr12327lt.jpg


Yaesumofo

yaesumofo, PDs are intended for 1xCR123 or 1xRCR123 -- right?
 
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TxTroubleMaker

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yaesumofo

A 27LT will run on a single Li-Ion 3.7 volt. I use mine with a custom PD body with a CR123 3.7 v Li-Ion. Here's a link to the thread with pics of my custom PD body https://www.candlepowerforums.com/threads/170465


If I read yaesumofo's reply right, I don't think that he's disputing the fact that the 27LT will run off of a 3.7 volt single cell. I think he's trying to point out that the light is being under powered at 3.7-4.2 volts, at least that's how I read it.:shrug:

I don't have anymore primary's on hand at the moment, so I can't test this out on my 27LT, but this has got me thinking, I may send mine off to chevrofreak to test this theory out...
 

Leef

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Yaesu, you may be right -- I'll do a test or two. Of course, this body will work fine with 2xCR123 or 2xRCR123.

Clickies rule!:thumbsup:
 

william lafferty

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If I read yaesumofo's reply right, I don't think that he's disputing the fact that the 27LT will run off of a 3.7 volt single cell. I think he's trying to point out that the light is being under powered at 3.7-4.2 volts, at least that's how I read it.:shrug:

I don't have anymore primary's on hand at the moment, so I can't test this out on my 27LT, but this has got me thinking, I may send mine off to chevrofreak to test this theory out...


For what it's worth, I have a 27LT - S with the standard two-cell body and also with a one cell clicky body made by our English brother, I think his CPF name is Gampf. I just did a test of the 27LT using both bodies, both powered by rechargable 123's, and I cannot tell the difference in brightness just eyeballing it. It's very close.

By the way, Gampf's clicky body is outstanding and it's a dead ringer for the oem body except that it is shorter and has a clicky.

bill lafferty
 

yaesumofo

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OK to make my point very clear.
A McGizmo 27LT head when driven by a single cr123 or rcr123 will NOT run nearly as bright as the same 27LT head when driven by 2 cr123 or rcr123 cells.
How do I know?
I have a single cell body shown in the image above. I have used it with a 27LT head as shown and the brightness level is LOW as in not very bright.
A 2 cell body will power the 27LT head properly.
AS I said I am looking forward to a 2 cell body with a clicky. This will make a very cool light even better.
Yaesumofo
 

william lafferty

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OK to make my point very clear.
A McGizmo 27LT head when driven by a single cr123 or rcr123 will NOT run nearly as bright as the same 27LT head when driven by 2 cr123 or rcr123 cells.
How do I know?
I have a single cell body shown in the image above. I have used it with a 27LT head as shown and the brightness level is LOW as in not very bright.
A 2 cell body will power the 27LT head properly.
AS I said I am looking forward to a 2 cell body with a clicky. This will make a very cool light even better.
Yaesumofo


I apologize for muddying the waters, Yaesumofo. You are right. The two cell body is brighter. When I performed my little test earlier, I did not realize that the two cell body was loaded with a 17670 instead of two 123s. Here are the two bodies.



Here are beamshots in my hallway-test chamber. The first is with the one cell body; the second is with the two cell body, both powered by 123 batteries.






Both photos taken at 1/50 sec at f 4.5.

bill lafferty
 

cave dave

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where does the aluminum spacer go if using the PD head?
 
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TxTroubleMaker

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Leef,
Which Surefire tail caps will be compatible with this body???

**Edit**

I was too lazy to re-read the whole thread before I posted this question, but in the end I decided to not be lazy.
Quote from post #39: And, yes, these bodies will use any SF C-series tailcaps, but for the cognoscenti, the LeefClicky (with McClicky switch, of course) is the way to go.
:grin2:
 
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Leef

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Cave Dave, it goes between the body and head, inside the body. It can't be seen. The threaded part of the 27LT head is ~1/8" longer than on the PD. I could have shortened the body by 1/8" and it would have worked with either head, but there would be a gap with the 27LT head.

TxTroublemaker, I never can keep up with SF's cap nomenclature. A cap that fits any SF C, P, or M series light should fit.
 

Leef

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STATUS -- bodies went to plater today. I expect them back in 2 weeks.

Sloooowww. Sorry!
 

Leef

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Status, again -- CNC shop sed the 27LT bodies should be back from the plater next week (week of 10 Sep). I hope so. Stay tuned.
 

Leef

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GRoLED, funny you should ask...these are supposed to be ready for me to pick up today. If they are (and they probably are), I'll have them off to the Hound tomorrow. :thumbsup:
 
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