Alure Strobe Lures combine perfect swimming action with bright flashes of light! All baitfish "flash" when scales are hit by sunlight. A flash of light seen by a predator triggers an attack reflex. The patented light system is activated by both water and motion. They only flash when they are in the water and in motion. No batteries to ever replace or switches to activate. Over 1,000 hours in water, lit up fishing and catching!