The Princeton Tec Byte Headlamp is a tiny little guy that packs a powerful punch. Utilizing a powerful Maxbright LED, the Byte Headlamp can emit a bright 50 Lumen beam of light. On its highest setting, this headlamp throws a beam as far as 30 meters. The lower setting is perfect for around the campsite or on familiar trail. A secondary red Ultrabright LED ensures uncompromised night vision. The large push button makes it easy to switch between these three settings and to turn the Byte on and off. Whichever mode you choose, you can adjust the angle of the light as this Princeton Tec headlamp pivots on an asymmetrical single arm bracket. Providing 146 hours of burn time on just 2 AAA Alkaline or Lithium batteries, the Byte only weighs 64 grams. That's just over 2 ounces! Perfect for backpackers who desire bright illumination without adding too much weight, think big by thinking small with the Princeton Tec Byte Headlamp.