The Dirty Bomb Spoon uses Dead Man Switch technology. Drop the Dirty Bomb into the water and the LED will begin blinking. Once out of the water, the Dead Man Switch will shut off automatically, preserving battery life. Blinking Red, Blue, Green, Pink and Gold LED! 1/4 oz, 1/8th oz, and 1/16th oz Black Spoon, Gold Spoon, and Silver Spoon The battery life is good for a weekend of fishing! The light brings'em in and your bait seals the deal!