Maximum Spectral Luminous Efficacy of White Light — mentioned by jdietrich

Wed, 30 Nov 2016 14:39:24 GMT

Depending on acceptable bandpass and desired color temperature, a white light has a maximum luminous efficacy of 250–370 lm/W. Nichia currently offer a white LED that achieves 210 lm/W at >80 CRI. Cree have high-flux LEDs capable of ~200 lm/W at >70 CRI. There's room for improvement, but nothing revolutionary. Cree had a prototype device achieving 303 lm/W in 2014, but it isn't currently commercially viable. Lower efficiency LEDs still make up a large proportion of the market for simple reasons of cost. https://arxiv.org/pdf/1309.7039.pdf…

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Maximum Spectral Luminous Efficacy of White Light · HackerPapers discussions

Maximum Spectral Luminous Efficacy of White Light — mentioned by jdietrich