LuxPremium battery-powered LED headlamp KL 250AF Versatile with a very long burn time. With an extremely bright CREE LED at the front with a burn time of up to 30 hours. Switch with functions 100% - 50% - 10% - SOS, rear light red/red flashing. Continuous focus from flat close-up light to focused long-distance light. Battery pack at the back of the head for good balance.