Petzl Tikka XP Headlamp 180 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 EASY TO USE: simple push-button system for quick lighting mode selection BATTERIES INCLUDED: headlamp runs on three AAA/LR03 batteries