Might be a stupid question but its been bugging me. ive noticed quite a lot recently mainly on newer cars that they have had their spot lights on, but sometimes only 1 is on, and sometiomes 1 will be on then go off, or both on and will go off. pretty sure its not the driver turning them off as ive seen it too often lately, does anyone know why they do this? Is this something that they have been designed to do, or is it just ive seen a lot of cars with faulty lights?