The Streamlight MacroStream USB is a high-output everyday carry flashlight designed for extreme durability and professional performance. It features a tail cap switch for momentary or constant-on operation and a Type II Military Spec anodized aluminum housing for superior abrasion resistance. Despite its compact size, it delivers a powerful 500-lumen beam and features a sliding head cover to protect the charging port. Black Anodized Aluminum construction, OAL 4.50, Body Diameter 0.83, Weight 2.20 oz, Water Resistant, modes Low / High / Momentary / Constant. This model includes an internal rechargeable Li-ion battery, a USB charging cord, a lanyard, and a removable pocket/hat clip. It provides up to 8 hours of runtime on the low setting.