A. Main features
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The reliability of this digital equipment is supported by the calibration
VELVET has made in laboratory by spectrophotometer, which precision
is half-yearly calibrated according to the National Institute of Standards
(NIST) of the United States and of the Physikalisch-Technische
Bundesanstalt (PTB) of Germany.
In order that the advanced VELVET luminaries could be used together
with other light sources, VELVET has accurately calibrated both the CCT
and the chromatic coordinates to match them with traditional light
sources following tungsten and daylight standards.
