The EU ban on light bulbs and the completion of restoration work in the state rooms of Schönbrunn Palace prompted the refitting of two halls with LEDs in 2011. The plan was to install lighting that would harmonize with the historical rooms. The key to this was a combination of LED luminaires with cut Swarovski crystals. These were integrated into the historic chandeliers and were intended to imitate the candlelight effect. Various aspects are discussed in retrospect.
You can find out more about Schönbrunn Palace in Restauro 07/2013