The Tactical Series is designed for use by Military and Law Enforcement personnel. Designed with the same indestructibility as the EDC Series the 120T also contains the intelligent power supply, which automatically reduces output to preserve the battery as it starts to run down. The 120T can produce blinding brightness or a disorienting strobe in the eyes of an oncoming attacker, giving the user critical time to assert control. Pre-programmed for simplicity and consistency with standard extended tactical button, the 120T turns on to maximum every time. Its momentary maximum feature allows for quick burst of light in tactical operations with disorienting strobe just a button push away. With variable brightness settings the T-Series Flashlights perform in the toughest of situations providing the user with an added advantage in performing the mission. Performance Features: 3 Preset Brightness Levels Primary Setting: 120 Lumens Secondary Setting: 10 Lumens Minimum Setting: .3 Lumens Preset Disorienting Strobe Extended Button Tactical Ring Durability Features: Stainless Steel Crenulated Lens Nut Polycarbonate Lens Aerospace Aluminum Housing Military Type III Hard Anodize Withstands Severe Impact, Temperature Extremes and Weather Conveniance Features: Single-Button Control Pocket Clip/Lanyard Attachment User Manual Automatic Brightness Reduction for Weak Battery Protects Rechargeable Battery Reverse Polarity Protection Thermal Regulation Product Specifications: Input Voltage: 1.8V to 4.5V Light Source: White LED Maximum Light Output: 120 Lumens Regulation: Constant Power Regulation Battery: 1xCR123A or Li-ion (4.2V) Rechargeable Lens: Polycarbonate with Anti-reflective Coatings Dimensions: 1 Inch (25mm) Diameter by 3.3 Inches (80mm) Long Weight: 3.1 Ounces Including Battery Waterproof: 66 Feet