Fly the Team Iceshanty Flag! Iceshanty Proshop
they start by attracting micro organisms which in turn attracts the bait fish, then in turn the game fish. It's Kinda like starting a food chain right in front of you.
$20 at wal-mart here's the link http://www.walmart.com/ip/Berkley-Submersible-Fish-Light/17011288