I use an older Giant Quaker for night flights. With a yellow fuselage and red wings, it makes it easy to see the big flying "T". The plane was already built prior to trying the Ram lights. The wings have the strands clear taped to the underside which still gives a good red glow.
You need to wait till it's totally dark so you won't loose the plane in the sunset. The hardest part is finding the end of runway on approach. Several ways to solve this are place candles in jars, Coleman lanterns on low setting or glow sticks stuck in the ground at each corner of the runway. You need to have several flashlights with red lenses to see during start-up but not light blind you. It is scary at first but then easy after a few minutes.
One of our club members was flying an AirCore trainer with lights when during mid flight, the lights battery pack fell out of the bottom hatch. With me standing behind him for protection, we tried to follow the noise in the darkness and make as soft of crash as possible. (semi-successful )
I believe there were a coule of threads on here about night flights. Might help to do a search.