Hone relay

English to Dutch Tech/Engineering Automotive / Cars & Trucks Tractoren

or hone switch. No context, in a components list of a tractor, no images. A third term is Head Light, Hone. This 3rd term convinced me that it's not a typo for horn.

Any ideas? If you can't provide a Dutch term but e.g. a German or Italian term, that would be helpful too. I'm clueless here. The tractor company is Japanese so I assume this could be a maimed term.