Specifications and Features:Cyclops CYC-RNG1XPRanger XP126 Lumens4 mode lighting; 1 watt super bright CREE center white light, 3 bottom green LED's4 side red LED's or side red LED strobe3 layer adjustable nylon cross-strap elastic headbandABS rubberized housing for durability, plus weather-resistantBurn Time: 5+ hoursPowered by (3) three Energizer 'AAA' alkaline batteries (included)