Code3 Series 700 Heavy Duty Epoxy-Sealed Flasher is weather resistant. This rugged dependable flasher is made to be used in headlights, grille lights and even in lightbars. The model 700 is an alternating wig wag. The model 710 is programmable for multi-purpose use. Finally the model 711 is similar to the model 710, just with more varied flash patterns. All three models can handle two 100 watt loads of up to 8 amps each. The flasher is easy to install and extends bulb life.