I only put an under glareshield LED strip and it's working out well. If you really MUST have white lighting, it would be easy to install 2 strips, one red or blue and one white. You could put lighting other places in the cockpit but for the amount of night flying most people do, a flashlight should be ok. You'll want to carry one anyway. The red LED light lights up the whole panel just great, and I have it on a dimmer.
I do find that flying at night you have a lot of glare from avionics on your canopy. It is still do-able but, I carry 2 dark blue towels for setting on the seats for stepping on getting in and out, and I find if you really want to get a good look at the stars, you may have to hang them on the glareshield so that they cover the avionics and remove the reflections. Of course, that's not for long flights but when you really want to see a beautiful sky...
The RV-14 I've found is spectacular for seeing a big moon or stars. I took one flight and immediately told the family they had to go for a ride and see it for themselves.
Ideally you could put some light behind your head, up on the roll bar, but I just think that while it could be cool, the return on investment isn't going to be good...and the less you have reflecting off the canopy the better.
Tim Olson - CFI
RV-10 N104CD - Flying 2/2006 - 1200+ hours
RV-14 N14YT - Flying 6/2016 - 100+ hours