“The idea of heat making a lightshade rotate is nothing new of course. Many of you probably had a bed light when you were young with a small rotating landscape scene.
One day in the near future halogen lights will probably be banned. I still don’t know if this is good or bad. Up until now there still is no good energy efficient full-spectrum replacement for the halogen bulbs. In the case of the revolving chandelier, at least the access energy (heat instead of light) is used to do something extra for the light… making it revolve silently and make the whole light twinkle like an old-fashioned chandelier.” – Bertjan Pot
Dutch designer Bertjan Pot utilizes this concept for his lighting fixture “the revolving chandelier.” It consists of one large light-shade with three smaller light-shades inside the first. Each light-shade is made up of half reflective, half transparent strips in the shape of a propeller and is balanced on a small steel tip. Within the three smaller light-shades are halogen bulbs that heat the air and propel a rotational movement from the rising heated air.