Toward Smart and Ultra-effi cient Solid-State Lighting

Solid-state lighting has made tremendous progress this past decade, with the potential to make much more progress over the coming decade. In this article, the current status of solid-state lighting relative to its ultimate potential to be “smart” and ultra-effi cient is reviewed. Smart, ultra-effi cient solid-state lighting would enable both very high “effective” effi ciencies and pote…