Intensely Bright - Can be clearly seen over 3/4 mile away without night vision, point fixation and distance judgement problems |Lightweight - Weighs under 2/3 lb with batteries |Simple to Use - An improved switching mechanism involves a simple twist of the lens to the desired function |Durable - Waterproof (up to 100 ft), dust proof, and will survive a 3-foot drop onto a concrete surface |Double the Safety - Provides safety with maximum 360° visibility. Unlike pyrotechnic flares, there is no risk of fire, explosion, toxic fumes or residue |Infinitely Versatile - Easily attaches to belts, clothing, vehicles, traffic cones or signs |Place units around to create a highly visible warning and safety zone for people, work areas, hazards and accidents |HAZMAT accredited for use in Class 1, Division 2/ Zone 2 hazardous areas