Those who have US import may still have sealed beam headlight that has quite low light output power (at least for me, very insufficient, even rated 40/50W) and "position light" in front indicators (that are consuming significant energy - 8W each)
I wanted to convert to OEM Honda but stock H4 headlight insert is pretty expensive (Stanley) if found. Fortunately, there is pretty good and cheaper solution I just tested on my CB550K1.
I was looking quite some time for good replacement insert (H4) but all I found on ebay were either not known brand to me (=no big trust) or pricey..
Finally I found Hella on amazon on pretty good price (free shipping) :
https://www.amazon.de/gp/product/B000VU7C1Y/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1It is Hella H4 insert for continental Europe - right hand driving (Hella P/N 002 395 – 071) that is
1:1 replaceable with sealed beam. It comes with "parking bulb" already inserted in and sealing rubber cap (to protect from dust and moisture).
One note for people taking care all details - Hella insert is glass, but almost flat, compare to convex stock sealed beam / H4.
So, if you decide to go for:
Only what you need to source additionally is H4 bulb (I highly recommend Philips X-tremeVision moto) and make 2 short wires to connect "parking bulb" that connects 6.3mm terminals on parking bulb to bullet male terminals (+12V and ground). So, female 6.3mm terminal on one side and male bullet terminal on other side.
For UK - look for left handed drive alternative at Hella website (different P/N!)
US import bikes have position light in front indicators - those can be now deactivaed - on my CB550K1 - simply unplug Lb/W and O/W front indicators wires from terminals in headlight and connect new "parking bulb" Lb/W or O/W terminal and connect additional wire from ground (green terminal) to parking bulb.
in total, it is almost energy neutral:
- US setup is 2x8W (position lights) + 40W low beam = 56W
- new H4 Setup is 4W parking bulb + 55W low beam = 59W
3W delta can be compensated by swapping rear tail bulb 21/5W by LED one...
Note:
as I understood from other posts here or from another sources, in principle any standard 7'' H4 insert should fit, not necessary Hella only.
I forgot to take some pics, I'll do and post here next time I open headlight again.