We do not expect a connected garland to provide as good a quality of light as a conventional bulb intended for domestic lighting. But since the Festavia integrates our comparison, it must undergo the same battery of tests as the other luminaires in our comparison. Our test protocol consists of evaluating only the quality of white light. We carry out our measurements at 2700 K, which corresponds to a warm light — equivalent to the color emitted by the flame of a candle —, then at 6500 K, a cold light — reference temperature for daylight similar to that from the sun to the zenith. On this garland, we collected values of the order of 3206 K and 6700 K, which is relatively close to what is expected.
The color reproduction index refers to the regularity of the spectrum of lighting, the standard being 90 for good reproduction of color shades and perfect regularity. The Festavia displays a passable CRI of 43 in warm light, and it is only slightly better (52) in cold light. These measurements are among the lowest observed in the lab but, obviously, there is no question of penalizing the garland on this ground. However, we wanted to compare its measurements to those collected on the connected garland sold at Action, which Guillaume Henri (head of the IT section) had the opportunity to dig up for the modest sum of €25. On more or less similar temperature ranges, the IRCs collected on the Action garland are even more deplorable.
Finally, note that each Philips Hue mini-led sends 1.2 lux (at its maximum light intensity) for an overall consumption of 16 W, while that of the Action store generates a maximum power consumption of 5 W, which is three times less than its rival. And for good reason, it has 50 fewer LEDs and each emits a maximum of 0.7 lux.