6000 series machined aircraft aluminum with non-slip rubberized comfort grip and anti-roll rubber ring. Unbreakable polycarbonate lens with scratch-resistant coating. Length: 8.41 in. (21.36 cm) Major Diameter: 1.62 in. (4.11 cm); Body Diameter: 1.17 in. (2.97 cm) 12.4 oz (352 grams). C4® LED technology, shock-proof with a 50,000 hour lifetime. Deep-dish parabolic reflector produces a concentrated beam with optimum peripheral illumination. Regulated run time provides consistent performance throughout battery life. Multi-function, easy access push-button switch designed for extremely long life; tested at 1 million actuations. Access high, medium, low and strobe. 3-cell,3.6 Volt Ni-MH sub-C battery, rechargeable up to 1000 times. Ten hours to fully recharge on 100V, 120V, 230V or 240V AC, or 12V DC, 2.5-hour fast charger or PiggyBack® charger model available. Features: Anti-roll ring included LED charge-continuity indicator, compact IPX4 Rated for water resistant operation 1 meter impact resistance tested Snap-in charger holder that mounts in any position Serialized for positive identification