Moto Iron 4" HeadlightMoto Iron 4" Headlight You can't go wrong with a compact light. Smaller than standard 5 3 4" headlights found on narrowglide forks, this Moto Iron 4" unit is classic minimalism. Provides powerful illumination in a compact package Dual filamenttwo separate circuits for main and dip beam Red wirehigh beam Blue wirelow beam Black wireground Uses 4454 or 4454A 4454NA incandescent sealed beam bulb (included) 4" housing is just the right size for that