Light not just human optics with better lighting but also can help regulate human health and productivity by eliciting various hormonal responses, suggest Sandia National Laboratories researcher Jeff Tsao and colleagues from other institutions in a Nature "Perspectives" article.
"LED lighting is only in its infancy," the authors write. "We now stand at the threshold of what might be called engineered light."
Moreover, with plants, the authors write, tailored LED wavelengths and intensities can efficiently stimulate their growth, alter their shapes and increase their nutritional value, opening a new world of scientific and technological possibilities for indoor farming.
In short, the inevitable broadening of LED usage could add value to society far greater than the energy saved in lighting homes and buildings, the authors write.