HL7 LED Focusing Head Lamp, With Variable Light Output Technology, Dimming Function, 183 To 3 Lumens, 6.25 To 75 Hours Run Time, Beam Distance From 49' To 315', Advanced Focus System, High Intensity LED, White Beam, Metal & Plastic Casing, Adjustable Plastic Straps, Hinged Attachment To Position Beam, Front Switch, Uses 3 "AAA" Batteries, Not Included.