Nope, everything is 12v
Concerned the cycling may eventually piss off ecm and other parts. Its also a bit annoying, and I could see it being very aggravating on a long trip at night. The headlights flickering is not enough to notice when in front of the truck, just when in, and dash lights an headlights are doing it. Especially hearing the engine sounding like very slight surging at idle. Take off connections for the regulator, and surging is gone.