BATTERY SOURCE : One (1) Lithium 3Vdc (Type: 123A) HOUSING COLORS AVAILABLE : Black or Tan (add -TAN to Product #) HOUSING MATERIAL : High-Tech Polymer HOUSING FINISH : Matte DOME LENS : High Impact Polycarbonate, Clear OPERATING TEMPERATURE : -20 to +65°C STORAGE TEMPERATURE : -40 to +80°C ENVIRONMENTAL SEAL : Fully Encapsulated Unit WATERPROOF RATING : 330Ft (100 Meters) SWITCH RING ROTATION : Clockwise & Counterclockwise