Spotted: Lights and displays look brightest between 10 and 20 hz - good for lights, bad for displays

Need to look closer to find how much brighter. 


Scientists discover ways to optimize light sources for vision: Tuning lighting devices could save billions
Vision researchers have made a groundbreaking discovery into the optimization of light sources to human vision. By tuning lighting devices to work more efficiently with the human brain, the researchers believe billions of dollars in energy costs could be saved.