Replacement lights for the Pro Troll lighted flashers series as well as lights that can be retrofitted to the flasher of your choice. These LED Lights are extremely effective for attracting salmon over to your gear and enticing the fish to strike at your rig. Two Lights per package. Most fish are attracted to light. The light is water activated. It turns on when it contacts the water, and turns off when dry. It’s unique circuits flash red, white and green on both sides of the flasher. The sealed battery lasts 80 hours or more. Two lights per package.