Solar cells by Chris Chapman give you an idea of glowing up your interiors in a unique way. How? As the name says solar cells get charged during the day and by the time it starts getting dark outside, these lil cells glow up. What I mean to say is these solar and kinetic powered lamps collect energy from the Sun during the day for use in darker hours. What you gotta do is just place the cells on the windowsill during the day and flipp over to activate it at night time. Incase, the lamp runs dry before sleepy time, it simply asks you to shake simply it back into life. Its as simple as that!