ETpower 1000LM XM-LT6 LED Tactical Aluminum Flashlight(5 Modes) Light for Bike Cmaping Hiking Fishing Walking the dog Excellent waterproof, suitable for outdoor environment, adverse weather conditions. Made of high quality 6061T aluminum alloy, this flashlight is sturdy and durable enough for long time daily using. Lamp base: CREE, high power LED. With a lifespan of up to 100,000 hours or more, no need to consider replacing the cap for the whole life. 5 Modes: High / Middle / Low / Strobe / SOS.Max output: 1000 lumens,Power by: 1x 18650 3.7v Battery(not include). Dimensions: Length: 151mm Head Diameter: 42mm Tail Diameter: 26mm