This story is five years old. Is anyone aware of further progress? https://www.sciencealert.com/new-light-recycling-incandescent-bulbs-could-outperform-energy-efficient-leds
Harry
This story is five years old. Is anyone aware of further progress? https://www.sciencealert.com/new-light-recycling-incandescent-bulbs-could-outperform-energy-efficient-leds
Harry