kellylepo, 11 months ago This is incidentally why old-fashioned incandescent light bulbs are so inefficient: the majority of the light they produce is invisible (to our eyes) infrared light. 3/ Figure from: https://spie.org/news/1199-a-cool-light-bulb?SSO=1
This is incidentally why old-fashioned incandescent light bulbs are so inefficient: the majority of the light they produce is invisible (to our eyes) infrared light. 3/
Figure from: https://spie.org/news/1199-a-cool-light-bulb?SSO=1