A feature loaded headlamp at a great price, the Princeton Tec Vizz offers three distinct lighting profiles plus dimmability to suit all of your lighting needs. . A single Maxbright LED creates a powerful 150 lumen spot beam for long distance illumination up to 90 meters. Two white Ultrabright LEDs provide a bright, dimmable flood beam. Two red Ultrabright LEDs offer close range light and help preserve your night vision. Heatsink technology protects the LEDs from overheating to allow extended periods of use at extreme brightness. Regulating circuitry maintains initial LED brightness as long as the batteries have sufficient voltage. 3 AAA batteries alkaline or lithium provide up to 110 hours of light from the Maxbright LED, up to 160 hours from the white Ultrabright LEDs, and up to 150 hours from the red Ultrabright LEDs. Translucent onoff button doubles as a low battery indicator. Button can be locked when not in use to prevent accidental turn on. IPX7 waterproofness protects the Vizz down to 1 meter for up to 30 minutes. Perfect for everything from hiking and camping to hunting and fishing.