Surefire N62 bulb ID help?

[Jeweler]

I was hoping that some surefire expert could confirm for me what type of Bulb this is. I feel it's an N62 because it was removed from a mint unsused surefire 12zm. It has no ID marks of any kind. Also can this bulb if it is in fact an N62 be powered by 3 x 17670?
Thanks very much for any help
Jim
http://i23.photobucket.com/albums/b379/Jeweler/bulb1.jpg
http://i23.photobucket.com/albums/b379/Jeweler/bulb4.jpg
http://i23.photobucket.com/albums/b379/Jeweler/bulb2.jpg
http://i23.photobucket.com/albums/b379/Jeweler/bulb.jpg

 

[Justin Case]

Looks like my N62 lamp.

3x17670 will most likely insta-flash the lamp. I've tried 2x17670 for brief moments (up to about 30 sec) and it worked. Hot spot brightness, as measured with a lux meter, came out the same as when driven by 4xSF123A.

This thread shows some beam shots of an N62 driven by 2xAW18650.

 

[Jeweler]

I just found this thread and it looks just like mine.
http://www.candlepowerforums.com/vb/showthread.php?t=212600&highlight=12zm

I guess mine are N62 lamps. Since there 12v I guess they could be run on 3 x 17670. Anyone know for sure if this is true before I try.

 

[Jeweler]

Hi Justin
Thanks very much for that thread. That has terrific information on this lamp. I see 3x 17670 is to much, but for a very short quick test 2 x 17670 would be good. I will go give them a test right know.
Thanks again
Jim

 

[cenz]

Hi Jeweler,

Here is a thread about 3x17670 running N62:

Can I use 3X17670 run N62 ?

 

[mdocod]

2 li-ion tops. any more will flash it....

In one of the recent threads going on the IMR series of li-ion cells, someone reported running the N62 on a pair of IMR16340 cells from AW with good results.

 

[Justin Case]

Note that the N62 lamp is really pushing standard LiCoO2 based 17670 cells (probably at just over 2C discharge rate), which isn't good for the cycle life of the cells. My AW 17670 cells didn't seem to suffer from my brief tests (at least in terms of heating up -- can't really evaluate effect on cycle life yet), but I haven't done any sort of long term tests or long, continuous discharges.

At some point, I may get some of AW's IMR17670 cells, which have a much higher discharge rate spec.

If I could fit them, I'd also consider 18650 cells, but my 12ZM doesn't take them and I'm not going to bore out the body or buy a 2x18650 body.

If you have a body that can take 3x17670, you might also check out the Lumens Factory HO-M6R lamp.

 

[cenz]

If I could fit them, I'd also consider 18650 cells, but my 12ZM doesn't take them and I'm not going to bore out the body or buy a 2x18650 body.

Hi Justin Case,

I'm thinking that using pair IMR16340s with Z2 body, it will becomes "6ZM"!!

 

[Justin Case]

That sounds like a great idea. Something like the one of the left:

Now I just need to get the IMR16340s.

 

[Jeweler]

I tested the lamp with 2x 17670's and although it was nice, I don't think it was living up to it's full power. It was close but was not as good as 2x17670's and the mn16, which happen's to be one of my favorite setup's. The N62 was not quite as brite or white as the mn16. The reason I thought it was ok with 3 is because the mn61 can be run on 3x17670 and there both 4x sf123 lamps?

 

[cenz]

I tested the lamp with 2x 17670's and although it was nice, I don't think it was living up to it's full power. It was close but was not as good as 2x17670's and the mn16, which happen's to be one of my favorite setup's. The N62 was not quite as brite or white as the mn16. The reason I thought it was ok with 3 is because the mn61 can be run on 3x17670 and there both 4x sf123 lamps?

IIRC N62 is 7.65v bulb, if using 3x17670 11.1v then just overdrive and poof it, also it is quite hard for the the battery; 2x18650 is conservative setup relatively. Technically, IMR16340 is more suitable and safe power source.

 

[Justin Case]

I tested the lamp with 2x 17670's and although it was nice, I don't think it was living up to it's full power. It was close but was not as good as 2x17670's and the mn16, which happen's to be one of my favorite setup's. The N62 was not quite as brite or white as the mn16. The reason I thought it was ok with 3 is because the mn61 can be run on 3x17670 and there both 4x sf123 lamps?

I measured the hot spot lux at 1 meter for my 12ZM using an N62, comparing 4xSF123A to 2xAW17670 and I measured virtually identical hot spot brightness. Probably 2xIMR16340, 2xIMR18650, or 2xAW18650 would be better in terms of operating within spec for discharge rate.

4xSF123A does not mean 4x3V = 12V. The primary Li cell voltages sag under heavy load, probably very close to 2V per cell, giving you the 7.65V cited above.

 

[Jeweler]

Thanks everyone for all the help and information on the 12ZM and the N62 lamp. This Light is just to nice for me to keep and use so I'm going to put it up on Ebay. Thanks again for all the Great information and help.

 

[CLHC]

I still like those particular SF."Z" flashlights. :thumbsup: They seem to be seen from time-to-time in the movies/tv shows.

Enjoy!

 

[jig305]

Jeweler, I think I see your light on eBay. Last time I looked, it was north of $400. I just put a new, mint 12PM up on eBay for best offer. I'm hoping to get around $400 shipped and insured.

 

[cenz]

Jeweler, I think I see your light on eBay. Last time I looked, it was north of $400. I just put a new, mint 12PM up on eBay for best offer. I'm hoping to get around $400 shipped and insured.

Hi jig305,

I have seen your item 12PM on eBay, and the tailcap is "website version", also the turbohead neck seems is KT2 style, so is it a original 12PM ?

here is the original 12PM tailcap close-up.