FWIW, even though I think the N cell is the same physical size, the Glo Toob uses a 12V 23A cell. Since I think the N cell is only 1.5V, I doubt it would work. As you mention, the 23A cell is fairly easy to find in the US.

I'm also unaware of a lithium version of this cell. If you can find a source, please point us in that direction as I'd be interested!

-john

Just one more happy Glo-Toob owner. I EDC the blue and will be picking up a white one as well. I think they're great for omnidirectional signaling and as a source of ambient light.

I also think this is an incredibly cool picture of Glo-Toob-wearing fire fighters:

How big is that Picture.
After 10 minutes I stopped it. Some of us sitting on the other side of the world dont have very fast internet.

Is that the picture from Glo-Toobs home page. If so I've seen the thumbnail view of it.

A23s are lithium already. <img src="/images/graemlins/smile.gif" alt="" />

I've seen a lot of distributors who are saying that some models take N cells, and others take 23s. Glo-toob.com says all are 23s. Huh? I'm waiting on GT to reply to that question, but if anyone here knows, tell me please? I'm thinking about adding some.

I think those distributers are mistaken. It's a simple issue of voltage and cost.

Glo Toob uses the 12V battery instead of the 1.5V battery because it makes driving the LED much easier and cheaper.

While some of us geeks would like to see them add a boost circuit which would allow them to use a 1.5V battery, adding the circuit would increase the cost. If they went to the trouble of adding that circuit, the only way they would realize a benefit is if they switched to a more common battery like a AAA or AA.

Of course, the length of the AAA/AA would significainly change the light. They could consider the 123A cell instead (in that case they could probably also avoid the boost circuit since it is 3V) but again they have a form factor issue.

While I'd love to see an AA or 123A version of this light, I think Glo Toob very carefully picked the A23 cell and I don't see how it would make sense for them to change it.

-john

Very cool picture.

-john

Not down here there not.

Glo-Toobs are very nice.

They are quite handy for signaling a bus. It's easy to miss someone standing in the dark with a black down jacket. A little blinky light also alerts other drivers so they don’t run you over in the darkness. Get a green one and put it on the strobe setting. Reds, blues and whites look like brake/headlights. All the bus drivers liked them.

I have the blinky kind and they are far superior to the krill lights. The Glo-Toobs are smaller and much brighter. And they work in the icy cold. I tried both but the Glo-Toob easily won. The krill uses a more common battery though.

Inova also makes a handy signaling light called the 24/7 but the Glo-Toob is smaller.

My other choice to signal the bus was an official U.S Airforce rescue beeper/stobe.

Not an super survival item, but I gotta get to work.

Hmm.... Every 23 I've seen is, at least as far as I can remember. But they are made of 8 stacked 1.5v mini coin cells, so you could do an alkaline. At least I think the energizer ones I mine for the LR44s are lithium.... Hmmm... I'll have to check.

I thought they were lithium.

Unfortunately all I can find are Alkaline over here.