Easy to operate: fast switching and focusing with only one hand Eco-friendly and convenient: rechargeable via USB 3.0 Everything ander control: battery and charge indicator From the homogeneous circle of close range lighting (defocused) to a sharply bandled long-distance beam (focused) the patented Advanced Focus System with reflector lense enables efficient, tailored lighting Individual adaptation of the headlamp to the current usage situation thanks to the Smart Light Technology