Excellent color rendering, low mercury, improved outcome Reduced impact on the environment without sacrificing performance;ALTO II means 50% less mercury than the original ALTO T8 lamps;High Color Rendering Indez Philips T8 High CRI lamps featuring ALTO II technology are ideal when better color rendering properties are preferred. 95% lumen maintenance and reduced lamp-end blackening;90 color rendering index;ALTO II Technology is TCLP compliant;Only 1.7mg of mercury with ALTO II technology Office;Industry;Retail