Outfit your semi truck to be Ready for the Road Ahead™ with improved roadside visibility, with the Old World Industries 13.2V Halogen High/Low Beam Headlight Bulb. By utilizing a tungsten filament, this replacement bulb is able to emit a stronger, brighter beam to help illuminate a highway. Constructed with a multipurpose design to be suitable for any vehicles or headlamp configurations that accept H11 bulbs. FleetPride is your First Click in Heavy Duty®.