1690040 - Electric Lights
The new four bulb high intensity lights are standard on the 716 and 712 tractors. The 710 lights are field installed option. The lights bolt on to the side of the hood and there is a prepunched hole in the instrument panel for the switch. It is located beside the ignition key.
Source: Dealer Sales Information, 700 Series Tractors, date unknown, courtesy of Del Allen.