Iconic for trails and ultra-running! The NAO® RL rechargeable headlamp provides 1500 lumens of brightness and weighs just 145 grams. Comfortably balanced, the headband is easily adjustable and maintains excellent support throughout long and committing races. With REACTIVE LIGHTING® technology, the brightness automatically adapts to the ambient light. Manual operations are reduced and burn time is optimized. Additionally, red lighting at the rear of the headlamp allows you to remain visible at night.