The ProFlash 4 Lighted Flasher is a four inch flasher. It features a built-in water activated light which 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 and then the light can be easily replaced.
Lighted flashers are most effective in dim light (early morning) or in cloudy water or when fishing deep (where it's dark).