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/Princeton.htm)
http://surfcasting-rhodeisland.com/StoreImages/Princeton_Tec/redeclipse.jpg
:D