SecurityIng 600 Lumens XM-L T6 LED 5 Modes 6061T Aluminum Alloy High Intensity Tactical Flashlight 200m Visible Distance Using One 18650 Battery or Two CR123 Batteries (Not Included) Super Bright Flashlight: This durable Cree XM-L T6 LED flashlight can provide super bright light. Its brightness can be up to 600 lumens. 5 Modes Optional: Low &gt; Middle &gt; High &gt; Strobe &gt; SOS, suitable for camping, hiking, walking, home using and other outdoor activities. Sturdy and Durable: Made of high-quality aluminum alloy, this flashlight is sturdy and durable enough for long time daily using. Wide Working Voltage: Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent. Power Source: 1 x 3.7V 18650 rechargeable li-ion battery or 2 x CR123 batteries(Not Included)