Suffering topic H7 pear burned out

Hello, it’s time again, after not even 4 years 2x the light bulbs in the front (abbreviation light, let each two pears change, incl. curve light bulbs) have been changed, as far as an old well-known, elaborate and relatively expensive topic with my mode (EZ 1/2005, my last change cost me, as far as I had recovered from my fainting so to the 180,- EUR for a bulb change!). Since the topic was discussed already several times here, I once in different Other directions thought: 1. Xenon-Birnen 2. LED-“Birnen” 3. “Downgrade” on H4 4. additional daytime driving light. I assume that it probably needs completely new headlights for 1. to 3. – there are these at all for retrofitting for the mode and what would all this cost about? Why H4? I had with my previous cars, although H4 supposedly hotter, worse etc. are never such a problem that I have constantly burned pears (even with my old kla not ppprigen R4) 🙁 Zu 4.: Is an extension useful or possible here and what would that cost about? In addition, I would like to note that fog lamps are already in the bumper, as far as this could be relevant.