Fenix HP15UE (HP15 UE) Ultimate Edition 900 Lumens Iron Gray Expedition Headlamp with 4x AA Batteries and LumenTac Battery Organizer Sample Super bright 900 Lumens max output Reaches maxium 195 Yards Use four commonly available AA Batteries (included) Four brightness settings plus SoS - great for outdoor and indoor uses Also include a Lumen Tactical sample battery organizer for backup