Coast HL27 330 lm Focusing LED Headlamp(pack of 6) Six Pack of Coast HL27 Headlamps Pure Beam Focusing Optic with Twist Focus Technology and Light Control Wheel Light Output: High - 330 lumens; Low - 1 lumen Beam Distance: High - 129 meters (423 ft.); Low - 7 meters (22 ft.) Runtime: High - 8 hours 30 minutes; Low - 93 hours