The M18 Maverick is the latest tactical LED flashlight, which inherits all superior features of Olight S20, but equipped with stainless steel bezel, tactical tail switch and special designed deep smooth reflector. It uses 2CR123A/2RCR123A/118650 battery to power the Cree XM-L2 LED to 500 lumens on max and comes with dual switches. Three outputs and the strobe function are accessed by pressing the side switch, while momentary/constant on is achieved with the tail switch. Features: 1. With a strong removable pocket clip, easy and reliable for use 2. Three adjustable brightness levels (low-medium-high) and 10HZ strobe 3. Thick stainless steel bezel protects the lens 4. Perfectly applicable with CR123A, RCR123A & 18650 batteries (not included) 5. Reverse polarity protection guards against improper battery installation 6. Utilizing the newest Cree XM-L2 LED, the highest output reaches 500 lumens; 7. Low voltage indication: the bottom side switch will shine in red, when the power is low. Specification: Cree XM-L2 LED Powered By: 2 x CR123A or 2 x RCR123 (NOT included) Size: 127mm 23.0mm (D) Dimensions: 61.5g(excluding Battery) Waterproof : IPX-8, underwater to 2 meters Lens: Toughened ultra-clear glass with anti-reflective coating.