Just one, the harness only has one. Being Bi-Xenon there is only one bulb, therefore you only need one relay. It looks more complicated then it is.
2012 F-150 EcoBoost 4X4 (work truck)
Focus S #1, Sedan Revolution #192, Rally Revolution #8, March 2012 SOTM
Focal Distortion, a Ford licensed club and FSC member.
Sgt, USMC (1999-2003)