napd wrote:
I like the led style that I can
hang around my neck red or green color. easy to find stay away from
the one light multi colors... unless it has a foolproof switch system
you spend more time fumbling for the right switch nothing worse than
trying for red or green and getting white ...

Those things are so good on batteries that I usually leave mine on. I
also "dimmed" mine by adding layers of tape over the LED's.