The Mercedes Vito Viano W639 facelift headlight switch light control is a switch assembly designed for Mercedes-Benz vehicles. This multifunctional switch controls the headlight and features LED lights for added visibility. Made with durable and dustproof materials, this black switch is a reliable replacement part with a Grade B quality rating. It is suitable for placement on the front dashboard of the vehicle and comes with manufacturer part numbers 6399050000 and A6399050000.