Last burn we just bought two strings of solar powered christmas lights
from amazon. You could run them through a seam in the tape or through
a hole that has been cut out for a window. Then tape the tiny solar
panel up on the southish side of the roof.
They seemed know how long to last - going on at sunset, and going off
before we came home for the night to sleep (somewhere between 3 and
7am).
We ran blue (to complement our amber colored led candles), but i'm
sure other colors would produce more (or less) light. Pretty cheap at
around $10-$15 per, and you can always turn them off at the solar
panel box if you need darkness.
On May 28, 9:14 pm, Bender of camp charlie the uniocorn BM