This is the Princeton Tec Byte 200 lumens Headlamp Ultrabright LED Light Features: Power: 200 Lumens Lamp: 1 Max bright LED, 1 Red Ultrabright LED Burn time: 12 hours Batteries: 2 AAA Alkaline or Lithium Weight: 2.25 oz / 64g Water resistance level: IPX4 - These lights are designed for water resistance to splashing and quick dunkings. Warranty: 5 Years Don&';t be fooled by its size! Smaller and lighter than the Axis, Remix, Sync and Refuel, the Byte has always packed a powerful punch in a compact package. The Byte now features a new LED which generates 200 lumens on high making this the brightest 2AA light in the line. At only 64g this is the perfect backup light or sole source for the gram counters out there. These lights are designed for water resistance to splashing and quick dunkings. If a light with a IPX4 rating is accidentally submerged for a longer period of time, the batteries should be removed and the cabinets should be carefully inspected for signs of battery leakage. If water has entered the housing, the light should be dried and batteries replaced.