headlight bulb recommendations

All the information is contained in the first post for 2nd Gen and is regularly updated, no need to read anything after that unless you want to jump to the last couple pages of discussion for whatever the current topic is. If you scroll down to the stock wattage bulbs section, with output comparison charts there are only 2 recommended stock wattage bulbs based specifically on whether high beam performance is important, or if you prioritize low beam over the high beam instead.

I've not seen the Philips Racing Vision +200s available from a domestic seller unfortunately. I know Powerbulbs isn't shipping to the US lately, but you should be able to snag some from UK sellers on ebay, and sometimes international sellers on Amazon or look at 3rd party UK sites.

Pro tip, you can use your domestic amazon account to shop Europe Amazon by changing the extension from say .com to .co.uk and buy stuff like it was your domestic amazon. You can do this for nearly every country using their extension.
https://www.amazon.co.uk/s?k=philips+racing+vision+h4&ref=nb_sb_noss_2