Across 300 years of lighting technology decreases in cost consistently led to much larger increases in light use every time. Until about the past 50 years or so

Across 300 years of lighting technology decreases in cost consistently led to much larger increases in light use every time. Until about the past 50 years or so when increased light use started to fall behind the drop in costs. https://www.researchgate.net/profile/Roger-Fouquet/publication/227349575_Seven_Centuries_of_Energy_Services_The_Price_and_Use_of_Light_in_the_United_Kingdom_1300-2000/links/0fcfd50fa79718f3c3000000/Seven-Centuries-of-Energy-Services-The-Price-and-Use-of-Light-in-the-United-Kingdom-1300-2000.pdf https://www.researchgate.net/profile/Roger-Fouquet/publicati... Cheaper models are good for industry. But the demand for better more reliable models is immense. The models won't stay cheaper.