Superbright and ultra heavy duty, the UST Marine 30 Day Flashlight outshines the rest with an incredible 30 day burn time and unique moon beam lens. Perfect for use around camp, at home, in the car, and in emergency preparedness kits. Superbright Cree XPG LED Chip bulb provides up to 300 lumens on high setting 35 lumens on low. Runs for 30 days on low setting. Optical grade acrylic lens with moon beam shape uniformly casts light in a single spot at a 60deg angle, making it easier to see objects clearly in the dark no more dealing with hot spots or dark areas. Anodized, aircraft grade 6061T aluminum housing is super tough and durable. Silicon rubber handle wrap provides a comfortable grip. Runs on 3 D alkaline batteries not included. Dimensions: 12 x 2 in. 30.5 x 5.1 cm. Weighs 1 lb. 14 oz. 850 g.