Bought two 55W to replace both, as I was worried that I may have burned out the wiring.
Luckily, it was just the bulb, however the wires/connection were showing the result of running the 100W bulbs, and the shielding had begun to melt slightly.
I would strongly recommend avoiding the 100W bulbs, unless you have redone the wiring already and are sure it can handle the extra wattage
Also, 55W is the standard, it is stamped right on the top of the headlight housing
Cheers!


