Very skeptical but generally enthusiastic about the idea, so I have bought the solar glass and put it to the two other co-owners before the nose. And hey, wow, rarely a product has exceeded my expectations so much. It was great to packed, the luminosity is madness and the light really bright so that you can read and write quite well. Of course, there is the typical, supercooled LED light, but that works well in the glass, especially with small decorative fact it harmonizes and does not act as frosty, repellent as I'm used to Led.
I would recommend the Sun Glass with a clear conscience for every balcony / Garden / etc. recommend.
So far I had only about 1 hour, so I do not know how long it actually lights up. And in front of the cover of the inclined buyer be warned: it takes tact, a little something violent and probably a little practice it turn off and then auzusetzen properly again. My recommendation: 1x think carefully what is pure or whether what is pure and open, fill, turn and let that happen.