Coin cell spanks incandescent.

It's always that way.
"why do you carry around the thing all the time? It's DAYTIME".
Then, when it comes in handy, "Dude, that's awesome".
Do people lack the ability to see how something like a small light could come in handy?

JimmyM said:

"why do you carry around the thing all the time? It's DAYTIME".

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There are lots of dark rooms in daytime, in commercial buildings, without windows, especially when the lights go out !!

Loos and lifts to name just a couple.

That's one reason we carry them, even just a keychain light, will get you out.

Oh man, those guys need to see a real light!

Over the years I have given away maybe 60 or 80 of those $1 coin lights. Lots of them wind up being carried every day on keychains. The .22 in your pocket is more valuable that the .45 in your safe!

Words to live by!!

wmirag said:

The .22 in your pocket is more valuable that the .45 in your safe!

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An IT guy came to our office last week to fix someone's computer that was under a desk. He didn't have a light so asked around until he came to me. I thought the 2 x CR123 xenon light I had would be too much, the Task Force keychain light would be too dim but the 2AA Garrity incan I have was just right.

I know these guys are issued lights ... they just seem to carry them.

I'll never understand why almost every IT/tech guy I see almost always has to ask to borrow a light.

It's like, after the first few hundred times of trying to look inside a case at a mainboard, you would wise up. These are supposed to be smart guys.

How hard is it even to carry a friggin $.50 coin cell light in your pocket if nothing else.

headlamps are teh way to go in those under desk computer cases. YOu always look like a dork but having both hands free to work while lighting your way is priceless.

I've given away a few of the coin cell lights from Lighthound and people report their surprise at how useful they are. Much brighter than my old ARC AAA but the ARC stays and will stay even after the TiCN Ti Draco shows up.

Yes, those little coin cell LED lights are pretty amazing.

Icebreak said:

I've given away a few of the coin cell lights from Lighthound and people report their surprise at how useful they are. Much brighter than my old ARC AAA but the ARC stays and will stay even after the TiCN Ti Draco shows up.

Yes, those little coin cell LED lights are pretty amazing.

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I like them VERy much. I have a white one my keychain in addition to my 2002-2003 vintage, but faithful (and brightest red 5mm LED I've ever seen) Red Photon III.

Two things about them, they come with two 2016 batteries, instead of the typical 2032's.

This equals around 6V (nominal) instead of 3V. This severly overdrives the LED, and also two 2016 batteries won't last as long as a 2032. But the severe overdrive makes the light very, very bright. This can be gotten away with because the coin cell batteries are so small.

And it doesn't really matter either because the coincells and light can be replaced at such little cost.

I got mine back in August and have used it almost everynight for short bursts and I think it's still quite bright. It was almost as bright as my Inova X5 with severly drained batteries.

Now if you tried to drive that LED in the coincell light on two 3V CR123A's, it would probably go up in smoke almost instantly.

InfidelCastro said:

Now if you tried to drive that LED in the coincell light on two 3V CR123A's, it would probably go up in smoke almost instantly.

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Why can the LED handle 6V from the coin cells but not 6V from the 123As?

iamerror said:

Why can the LED handle 6V from the coin cells but not 6V from the 123As?

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Internal resistance of Coincells prevent too much amperage from going through but with lower resistance of CR123 it'll release all the magic smoke.

Don't forget that coin cell lights are not regulated; they'll be dimmer than just about anything else within a few minutes of use. But, constant on is not their primary intended use, so I'll shut up now.

InfidelCastro said:

Two things about them, they come with two 2016 batteries, instead of the typical 2032's.

This equals around 6V (nominal) instead of 3V. This severly overdrives the LED, and also two 2016 batteries won't last as long as a 2032. But the severe overdrive makes the light very, very bright. This can be gotten away with because the coin cell batteries are so small.

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I did not know that. This explains a lot.

InfidelCastro said:

And it doesn't really matter either because the coincells and light can be replaced at such little cost.

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Agreed. The folks I've given them to also use them in short bursts for light switches, key holes and such. They've been using them for 3 or 4 months like that.

greenLED said:

Don't forget that coin cell lights are not regulated; they'll be dimmer than just about anything else within a few minutes of use. But, constant on is not their primary intended use, so I'll shut up now.

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5 hours !!

https://www.candlepowerforums.com/threads/133886