Commercially-available luminaires sold with efficacy claims in the 200-lm/W range deliver mixed results in US Department of Energy testing at PNNL, with glare being a recurring issue and most products falling short of efficacy specifications.
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Commercially-available luminaires sold with efficacy claims in the 200-lm/W range deliver mixed results in US Department of Energy testing at PNNL, with glare being a recurring issue and most products falling short of efficacy specifications.