A community post by Jenaih brought a rather interesting story to my attention. He writes in his comment: “Am I the only one who noticed that the effects Candle, Fireplace and Prism also run on Hue lamps without Bluetooth?” I can now answer this question with a partially “yes”. But let's start from the beginning.
Effects now also available for older Philips Hue lamps Firmware update makes it possible
Firmware update makes it possible