Princeton Eclipse Light w/red bulb
 

These are pretty cool...cheaper than most good plugs and can be snapped onto a hat. It also comes with a different clip so it can be worn around the neck.
Red light does not spoil night vision or tip off spot hijackers.
Waterproof, LED, lifetime warranty.
Princeton Tec
http://surfcasting-rhodeisland.com/S...redeclipse.jpg
:D