
as far as i can see, the difference is only going to be about 0.8 A.
the standards are 12V/40/55 and the H4s are 12V/55/60,
so the high on a standard lamp is the same as the dipped on the H4,
the only difference being the 5W per lamp on high beam for the H4, which amounts to about 0.8A (P=IV)
as modern lamps give better lumens per watt the 5w per lamp is exponentially brighter than the standard lamp
well that's the theory,