PETZL - PIXA 3, Headlamp 100 Lumens 100 LUMEN: maximum output STANDARD LIGHTING TECHNOLOGY: beam switches to reserve mode when batteries are getting low in order to preserve remaining battery life ADJUSTABLE MODES: choose from three different modes(proximity, movement, or focused) for various situations BATTERIES INCLUDED: headlamp runs on two AA/LR06 batteries ADJUSTABLE HEADBAND: with top strap for added stability during technical activities