Fishing glow-in-the-dark lures like Luhr-Jensen models with premium Everglo finishes, requires a powerful source of light to generate a lasting charge. Operating on two "AA" batteries, the Power Flash emits a burst of super bright light that is much preferred than trying to charge lures with a flashlight. Quickly recharging for flashing lures multiple times if necessary, the Power Flash fits in any tackle box to be ready when you need it.