I found in the garage two H4 LEDs "conversion lights" that have been left over, and then I got an idea Why not change the socket to fit the fog lights? Then the fog lights can function as both fog lights (the lamp in the dipped beam) and as high beam (the light in the high beam position. The fog lights are not so different from the headlights so they should be able to have both "dipped-beam and high beam" I fixed this by cuting apart two ordinary H10 and making an adapter plate that I glued to the LED with a thick epoxy. The result was beyond expectation with a clearly defined fog light and a very good "high beam" that shines long and wide. So now I have a really good high beam (see if I get on something to improve the dipped beam as well).