Bright amber flashing visual indicator, with green lens. Equipped with 2 'AAA' alkaline batteries. Provides over 50 hours of continuous full intensity lighting. Case: high-impact plastic. Dimensions: approx. 1-3/4" x 2-3/4" x 1-1/2" (including clip). Weight: approx.3.5 oz. (including batteries). Easily attached to clothing or belts.