Princeton Tec Vizz Headlamp 550 Lumen Dimmable LED, IPX7 Water Resistance, Essential Outdoor Accessory for Hiking, Backpacking, Camping, Running, and Safety Preparedness, Multicam, TacticalDimmable LED Dimmable LEDs provide the precise output needed for a given task, and help conserve battery power for maximum efficiency Maxbright LED The highest quality LED available, Princeton Tecs Maxbright LED is extremely bright and efficient; This single LED emits a smooth, powerful, white light useful for a wide range of tasks Ultrabright LED The Ultrabright LED is bright and efficient; The smooth, white, wide beam light emitted by Ultrabright