Exterior vehicle lighting illuminates the road for drivers and alerts other motorists and pedestrians to moving work trucks, construction equipment, and emergency vehicles. Work lights mount to vehicles and equipment to brighten a work area. Beacons, strobes, and flashing warning lights mount to working vehicles to ensure they're visible to others. Light bars mount to the rooftop of working vehicles to deliver highly visible warning lights while moving in traffic. Headlights and fog lights illuminate the road at night and in harsh weather conditions. Stop, turn, and tail lights alert other motorists when a vehicle is changing direction or braking. Clearance, marker, and directional lights show a vehicle's size and direction of movement. Emergency vehicle lights are intended for use on police, fire, and medical vehicles to alert motorists of their presence and movement.