Streamlight PolyStinger LED Flashlight, Yellow: * Light source: C4 LED technology, with a 50,000 hour lifetime * Lens: Unbreakable polycarbonate with scratch-resistant coating, O-ring sealed * Output: Optimized electronics provide regulated intensity * Deep-dish parabolic reflector produces a tight beam with optimum peripheral illumination to aid in navigation * Battery: 3-cell, 3.6-volt nickel-cadmium sub-C battery is rechargeable up to 1,000 times * On/Off: Multi-function, easy access head mounted push-button switch designed for extremely long life * Tested at 1 million actuations * IPX4 rated for water-resistant operation * 3-meter impact resistance tested * LED charge-continuity indicator on charger base * Compact, snap-in charger mounts in any position * Virtually indestructible nylon polymer housing * Serialized for positive identification