I installed the Aveo Powerburst LED Nav/Strobe light and couldn't be happier. Very light weight, almost no power draw, easy to wire, and I thnk they're only around $400. While I haven't flown at night when it's truly pitch black, I have flown late in the evening and get lots of good comments on how bright the lights are. I mounted them on wingtip standoffs from
www.gaugepods.com and the combination has worked perfectly.
Just my two cents of course.