ULTRA BRIGHT & LONG-LASTING: Tip: If you use 18650 battery, flashlight will be more bright. If you use 3 AAA batteries, flashlight will be not achieve 2000 lumens.Easily light up an entire room or focus in on objects up to 1000 feet away! 10 times brighter than old incandescent lights. Conveniently powered for hours with 3 AAA batteries or one 18650 rechargeable battery. (Batteries not included) COMPACT, ADJUSTABLE FOCUS, & FIVE MODES: 5 Useful Settings (High Medium Low Strobe SOS) and wide-to-narrow beam zoom makes it ideal for use around the house, dog walking, or camping. It is compact enough to fit in your pocket, backpack, or purse allowing for easy storage and quick access. WATER RESISTANT & VIRTUALLY INDESTRUCTIBLE: Built for rough handling, this flashlight can survive a 10-foot drop or being temporary submerged under water. You can even freeze or run it over with a truck and it will still work! Suitable for use in rain, snow, or emergency situations. AS SEEN ON TV