Measures 2 1/8" overall. Black composition housing. Unbreakable white LED. Up to 230 lumens. Beam distance: up to 140m. Runtime: up to 160 hours. Candlepower: up to 4700cd. Focus control adjustments allow for broad or directed beam. Head ratchets to direct light as needed. Push button on/off switch. All weather use. Impact resistant: up to 1m. Waterproof: up to IPX4. Rear battery pack keeps weight comfortably balanced. Gray and orange adjustable nylon elastic headstrap. Uses three AA batteries (included). Hang packaged.