Description:The Yukon HL is built for the long haul. This 3-AA, all-LED hybrid combines the long, wide-throw beam characteristics of the Luxeon one-watt LED for night riding along with three Ultrabright LEDs for when a cyclist needs to be seen or when long burn time is more important. Yukon HL eliminates worries of bulbs burning out or breaking--the LEDs are guaranteed to provide a lifetime of light.