Ah hah! the electrical issues in my car have all been traced back to a short and this bulb. Eurodesigns aftermarket blue = crap! Here you can see that the light indeed has 2 filaments, the top is brights and the bottom one is the conventional beam. A quick replacement and some fun with a multimeter, and my car is back to normal! (except my speedometer needle is a little off) Anyway, one step at a time!