The discussion is in relation to the 12V 4W halogen parking light inside my Hella headlamps.
Assuming that I have new wiring and bulb housing that can handle the increased wattage, can I increase the wattage from 4W to 10W? Checking the wiring, this globe is connected in parallel with the rear parking light which is also 10W. Should I change the associated fuse or just leave it?