6 1/4" overall. Safety Yellow tough, grooved, non-conductive ABS and polycarbonate plastic construction with lanyard hole will not corrode, dent or freeze to skin in cold weather. 5.5 watt high pressure Xenon filled lamp. 400 lumens. Light output: 113 lm. Beam distance: up to 804ft. Black molded rubber bezel. Precision machined aluminum reflector gives bright, narrow beam for sighting distant objects. Depth rating: up to 500ft. Runtime: up to 4-5 hours. Positive on/off switch. Uses four C batteries (included). Black nylon wrist lanyard with cord lock. Weighs: 15 oz. Works well as a photo spotting light or to illuminate gauges and tables.