Cyalume lightsticks have a shelf-life and an expiration date. I think they are great for things like dropping into dark holes and throwing.
Does anyone know of a different product that does the same kind of thing, but has no expiration date?
I thought there was a batttery powered version.

Thanks Izzy, I'll look into that.

I found it. The Glo-Toob. Has anyone ever found out how rugged these are: HERE

There's something that looks similar called the glo-toob. It uses an LED and gets pretty high marks by the regulars on the candlepowerforums.com site.

The original battery driven caylume look alike was the Krill light. They used an electroluminesant film wrapped around the battery tube. Pretty neat looking, but I'm not sure they're made anymore.

Krill lights! Those are the ones I was thinking of: HERE

I tell you what the 5 minute super bright ones are just that SUPER bright.

I have a wide variety all past exp. date and all work.

Battery ones don't seem to be NEAR as bright.

Also, disposable is nice to toss into caves, or into water etc.

Is there a good place online to get a bunch super cheap?

You can find them online for .5 or so each if you buy in quantity.
I forget where, I got mine online 2 or so years ago.

Well worth the money.

My Krill Light never worked well. Bad batterie contacts...

Try looking at Lazer Stik. They're relatively inexpensive, pretty bright and last a long time before the batteries run out. The downside is that they use a less common battery.

REI and a number of on line dive shops sell them. They're pretty popular with divers.

Warren

Garrity Fun-Tastick LED Glo-lite is a battery powered stick.

http://www.garritylites.com/page77.html

They cost about $3.00 or so, but you can turn them on and off. Don't know about expiration dates, but since they use Lithium batteries they should last for a long time. Since you can turn them on and off, you can always check to see if they are working.

As some one else mentioned, the best time to buy glow sticks is in the clearance section of grocery stores, wally world, drug stores or other places that sell Halloween stuff the day after Halloween. I picked up some of the Garrity sticks cheap like that.

They work about like a light stick. They are sealed and supposed to be waterproof. They run on batteries, but since they are sealed up, they are intended to be disposable. Supposed to burn for 24 hours, but I have not checked that out. Since they turn on and off, you can use one several time if you are not dropping them down dark holes.