Devere ZBE auto focus P.S. controls  the color head lamp control SN. 91005. This item is being sold as a parts only item, with no returns,,as I have no way of testing it, however when I turn it on the power indicator light in the switch comes on with a nice red glow.  Im sure there are many parts that would be expensive if you had to buy them from DEVERE.. THIS COULD BE A SPARE UNIT SHOULD YOURS ever need parts or repairing.  Ships USPS parcel select. This unit has a list price of well over $1,000. Message me any questions.  Jay