4 5/8" overall. Black Aerospace-grade aluminum with high grade anodized finish. Replaceable stainless steel clip. Dual light mode functionality. Features both high and low light output modes. LED color-White. Lumens: High-185 Runtime: 2 hour, Low-40 Runtime: 10 hours 40 minutes. Effective range up to 249 ft. High-powered, energy efficient 38,900 hour LED. Precision machined aluminum reflector with thermal management interface. Water-resistant construction and O-ring seals. 3 position End-Cap switch activates constant and momentary high and low as well as a lockout mode. Hang packaged.