Ultra-Slim Design: The Stylus Pro features a lightweight, compact body for easy everyday carry in pockets, tool kits, or medical pouches; ideal for medical staff, law enforcement, technicians and anyone needing a reliable pen light for close-up tasks and low-light work Reliable White LED Output: Produces bright and steady lighting with extended runtime, ideal for inspecting and working safely in confined spaces Convenient Power Source: Runs on 3 AAA alkaline batteries (included) for easy replacement and dependable performance in the field Professional Applications: Perfect for technicians, first responders, medical staff, and everyday users who need a durable, reliable penlight for low-light environments Built Streamlight Tough: IPX4 water resistant and 1-meter impact resistance tested