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Coghlan’s Adhesive Signal Lights are the perfect solution for go anywhere lighting. Ideal for packs, tents, trail marking and emergency day/night signalling. Perfect for hunters, campers, and hikers who want a powerful and rugged light source that can replace bulky chemical lightsticks. Completely submersible and dustproof, the hermetically sealed signal lights are intended for use in the worst possible conditions, from the searing heat of the desert to the frigid waters of the harshest waters. With more than 80+ hours of run time, the disposable signal lights will meet the most stringent requirements. Can be seen up to 1/2 mile.