My drivers side (passenger side to you guys....) low beam went off today.
Now, I'm not keen on the yellowish light of the standard bulbs, so.......been looking at these..

H7 OSRAM Cool Blue Intense Bulbs (pair)

Has anyone tried these?

Also,
Are they a sod to replace?
Are all 4 bulbs the same? - inner and outer.

Finally,
Does anyone have the size / recommendation for replacing the sidelight bulbs for something more bluish?

Ta