Rosewill RLFL-14001 Cree XPG-R5 LED Search Flashlight (Zoom) Max 450 Lumen Unique Body Design with Textured Rings for Grip, High Quality Aluminum Construction, Water Proof, Anti-Shock and Explosion-Proof, and Complete with an Anodized Finish making it Durable and Corrosion Resistant Constant Power Control with the Integrated Circuit Provide a Steady Discharge, Constant Brightness, and High Efficiency in Battery Draw Ensure Maximum Performance Over Voltage and Short Circuit Protection High Efficiency LED with Long Lifetime up to 50,000 Hours Professional Optical Designed Reflector with a Distinctive Finish Process, Provide Maximum Illumination. Adjustable Zoom Head for Illumination Focus Control