Like them I also responded , I started buying solar powered lamps, some set up as a garden products but I put them in my window panes. When the daylight fades, they all turn on and increase the amount of light coming through the window. I can keep the lights off for a few hours longer every day because they increase the twilight in the home.
Some of them are plane looking jars, others are faces and flowers, plastic flowers with a solar panel and light emitting diodes.