Streamlight's Stinger DS LED HL is a heavy-duty flashlight that emits a high-power 800-lumen beam at its highest setting for full peripheral illumination. It can adjust to suit high and low-light situations, producing three beams, high at 800 lumens, medium at 400 lumens and low at 200 lumens. The lowest level has a five-hour runtime but still emits a strong, concentrated beam of light. C4 LED technology provides maximum illumination for any situation, and is shock-resistant as well. This model also features a dual-switch system, with one at the tail and one at the head, making one-handed operation simple. The aluminum construction is ultra-durable and the polycarbonate lens is both scratch-resistant and unbreakable.