are 9012 bulbs dual beam?
In most of cases, the bulbs sizes that are installed to this headlight assemblies are H1, H3, 9011 or 9012. The bulbs that perform for high and low beams refer to a dual beam type. They can be of H4, H13, 9004 and 9007 sizes. Halogen bulbs of this type have 2 filaments side by side.