DiiA debuts DALI-2 certification of tunable white LED drivers
DiiA has expanded the scope of the DALI-2 certification program to include tunable white colour control.
The colour temperature Tc method of colour control has been added as a feature for DALI-2 control gear such as LED drivers. Commonly referred to as "tunable white", Tc allows control of the correlated colour temperature (CCT) along the black-body line, from warm white to cool white.
“DALI-2 certification for tunable white colour control has important implications for well-being and productivity in buildings,” says Paul Drosihn, DiiA General Manager. “For example, colour temperature control at different times of the day, coupled with light intensity measurements and occupancy detection from DALI-2 sensors, results in comfortable and efficient lighting schemes.”
DALI-2 certification of LED drivers has been available since mid-2017. All DALI-2 drivers have compulsory attributes such as a standardized dimming curve. Tunable white colour control is now added to the list of optional features for LED drivers, which also includes the ability to store and report a rich set of luminaire, energy and diagnostics data (DiiA Parts 251-253 respectively).