Take your standard Venetian blinds, attach some thin solar panels on them, and let them store energy on batteries during the daytime and allow them to gradually shine as the sun sets. This particular concept is called, "Blight" - which raised our brows at first, but was finally decrypted as a play on the words "blinds" and "light" (duh) after consulting with designer Vincent Gerkens' about his clever solar window concept.
