hello On the SLK, I am thinking to upgrade the low beam normal head lamps to xenon i am not changing the headlight housing, only the HID kit and i presume H7 fitment.. 1. is this illegal as i do not have projector headlamps 2. i want a colour lower than usual Xenons, to be more fitting for the age.. is 4300k the way to go of 5000k? 3. do i go for 35w or 55w? 4. do i need a canbus slim ballast or is canbus not needed? 5. is it an H7 fitment? 6. any links to suggested options?