Ultra-Slim Design: The Stylus 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 Red LED, Night-Vision Friendly: Compact stylus pen light with a red LED providing up to 2 Lumens and a 15 Meter beam for tasks where preserving dark adaptation helps (maps, cockpit/EMS, inspection) Convenient Power Source: Runs on 3 AAAA 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 2-Meter impact resistance tested