Thought on the IMR-9 Lamps?

Brigadier

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Mar 19, 2008
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For a dedicated handgun light, I would just go with a P61[primaries] and call it good.
 
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Deputy T.

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I think for 2 IMR16340's the EO-9 would be a great option. When the IMR18500's were released I used them in place of my AW Protected black labels and never looked back. I find it to be a very reasonably price lamp assembly, and the you can't find much better throw in the P60 form factor.
 

mitch79

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Check out Mdocod's detailed and descriptive shootout,
https://www.candlepowerforums.com/threads/235143

I've just put together a SF M2 with a P91 & IMR16340's and absolutely love it :grin2:.

Huge output for it's size.
It's maybe not what you want if your after a tight focused beam but it throws ok via sheer lumens output.
If you want a light you can just point in the general direction and light up the whole area - the P91 will do it.

From mdocod,
2x IMR16340
SF P91: 20W, 300 - 125 lumen in 10 minutes

Others have tested it at 380~400lm. Whatever, it's bright :devil:
 

curtispdx

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I just used mine at work last night on a (potentially) double-fatal accident. It was pretty dark and pouring rain but it was able to light up what I needed to see with it.

That's a good drop-in and the price is right. I'm probably going to find a 2x18650 host for it to get more runtime.

Anyone know if I can run it with two black-label AW 18650s or should I use the IMR 18650s?
 

mitch79

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The IMR-9 draws ~2.4A, The SF P-91 ~2.7A when properly driven.
Either will be fine with AW black label 18650's as it's well under the 2C max discharge rating.

For absolute max output the IMR-9 needs IMR18650's, for which it was designed.
The SF P91 will :poof: with IMR18650's, it should be ok with AW protected 18650 LiCo's.
 

curtispdx

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The IMR-9 draws ~2.4A, The SF P-91 ~2.7A when properly driven.
Either will be fine with AW black label 18650's as it's well under the 2C max discharge rating.

For absolute max output the IMR-9 needs IMR18650's, for which it was designed.
The SF P91 will :poof: with IMR18650's, it should be ok with AW protected 18650 LiCo's.



Good to know. Thanks! :)
 

bigchelis

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I just re-tested my IMR-9 D26 500 lumen incan drop-in.

It did as I expected. Less lumens with the IMR 16340 vs. AW 2600mAh 18650.

lumens26.png
 

mdocod

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I wouldn't bother with the IMR-9L unless I was going to run a pair of IMR18650s, it needs plenty of voltage under that load to really wake up. If you want to run a D36 head on there I would suggest the EO-9L as the absolute maximum. Coincidentally, the EO-9L is about the same power consumption as the IMR-9, but I feel that the different bulb style found in most of those D36 LAs is of higher efficiency than the little D26 bulbs.

If the intended cells are going to be those little IMR16340s, and you want to stick with the D26 platform (floodier beams), I would go for the P91 to really see something impressive in this size. The IMR-9 makes sense when you are going to run a pair of large cells. When running large cells, it stands to reason that one would be interested in having runtime, which would also translate to a desire for reasonable bulb life. In the case of a configuration that is going to run for less than 10 minutes, bulb life just doesn't really matter. It's either going to run for 2 seconds or 10 minutes, either way, it's not long enough to get much done and you'll probably feel compelled to carry a reliable backup whether you have the bulb life or not.

Eric
 
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