The Ledlenser i7 lights are permanent in Low Power mode for up to 25 hours. A lighting performance with a luminous flux of up to 450 lm and a beam distance of up to 300m in the focused setting is an impressive feat for an LED flashlight that is only 13 cm in length and 175 g in weight. The industrial flashlight is operated using four ordinary AAA alkaline batteries. Long operational time - Up to 25 hours1 in the lowest setting From the homogeneous circle of close-range lighting (defocused) to a sharply bundled long-distance beam (focused) - the patented3 Advanced Focus System with reflector lens enables efficient, tailored lighting Quick modification of the light cone with one hand - Rapid Focus with Focus Lock enables secure locking of a focusing position Robust, rubberized end cap switch made out of oil- and fuel-resistant NBR Secure hold - Special diamond ribbed surface, ideal with oily or wet hands What's in the box 1 set of batteries and Charging Base