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Compact and exceptionally bright, the Streamlight Stylus Pro Penlight is ideal for housework, the job site, or virtually anywhere a small and easy-to-pack yet reliable light source might be needed. It's only about the size of a marker, fitting conveniently into a pocket. However, it still provides an impressive 90 lumens, 860 candela, and 58m beam with featured C4 LED technology that's virtually impervious to shock and boasts a 30,000-hour lifetime. Machined aluminum alloy case with Type II MIL-Spec anodized finished long-lasting, abrasion and corrosion-resistant durability. Unbreakable polycarbonate lens. All openings are O-ring sealed, helping deliver IPX4-rated water-resistant operation. Impact-resistance tested to 1m. Simple push-button tail switch for on/off operation. Runs on two AAA batteries (included) for up to 6.5 hours. Also includes tear-resistant nylon holster.