TukTek LED Bike Headlight Handlebar Mount 600 Lumen Adjustable Zoom Removable Flashlight See and be seen in the dark with the handle bar mounted head light for bicycles. Bright 600 Lumen CREE LED with a focus ZOOM produces light up close and far away. Made out of lightweight aluminum alloy. Measures 4" and 4.25" fully extended with zoom. On/Off push switch with 3 positions (High, Medium, Low) located on the tail cap. Comes with 1 lanyard. Handlebar mount adjusts easily with knob to tighten onto most handle bars from 3/4" to 1 1/4". Flash light can be removed easily to take with you preventing theft. Requires 3 AAA Batteries. Not Included.