Coghlan&#39;s Emergency Strobe Light For signaling, warning, or marking when on the trail, hunting, boating, snowmobiling, or on the road 60 times per minute flash rate Approximately 10 hours duration Coghlan's Emergency Strobe-Light for signaling, warning, or marking when on the trail, hunting, boating, snowmobiling, or on the road This strobe-light flases 60 times per minute for approximately 10 hours and is waterproof to 50 feet Includes magnetized bottom and a wrist strap and three lenses for appropriate color selection/usage