2 LAMPADINE LED per FARO JOHN DEERE12V 35/35W JD850 950 1050 1250 1450 1650 12V
And many others. and many others (see list below of just a few tractors they fit). They fit directly into your OEM wiring harness sockets. They are non-polarity, so you just plug them in. It is as easy as changing a light bulb.