The NiteCore UT32 is a head lamp with two opposing light sources, which are switched independent of one another via two switches.Switch A is responsible for the 1100 lumens cold white light, switch B is responsible for the 920 lumens warm white light. The UT32 combines two lamps in one.The NiteCore UT32 can be rotated in its holder by 360°, the user can position the desired light source as per his desires.The warm white light is particularly suitable for outdoor activities such as running, trekking, ...Power and running time cool white (1 x 18650 Li-Ion rechargeable batteries 3500mAh)Turbo (1100 lumens) for about 1 hour 30 minutesHigh (410 lumens) for approximately 3 hours 45 minutesMid (200 lumens) for approx. 8 hoursLow (70 lumens) for approx. 18 hoursPower and running time Warm White (1 x 18650 Li-Ion rechargeable batteries 3500mAh)Turbo (920 lumens) for about 1 hour 30 minutesHigh (370 lumens) for approximately 3 hours 45 minutesMid (170 lumens) for approx. 8 hoursLow (60 lumens) for approx. 18 hoursThis text is machine translated.