Light Stick?

[yagamuffin]

A while ago I saw a guy with what I can only describe as a light stick fastened to the back of his seatpost.
It looked a bit like a glowstick but had LEDs.

Anyone got any ideas what it may have been?

 

[cyfa2809]

Fibre flare.

 

[yagamuffin]

Fibre flare.

That's the fella.
Thank you.

 

[cyfa2809]

No problem.

Or a light sabre is the other possibility, or dont the americans call a torch a light stick?

Knew i had seen them somewhere!