The “GPStrobe” is a revolutionary improvement over passively-lit reflective tape which only activates upon reflecting vehicular headlights. GPStrobe is mounted to the top of the 2 1/3” diameter post where the strobe makes its own light which is visible up to 1000 feet. The three mode strobe has a selector button so can be set to flash 50 times per minute, stay on or stay off. The waterproof strobe operates dusk to dawn. Operates for 60 hours with a full charge. Full charge achieved via 10 hours direct sunlight.