This LED lamp from Philips is not only equipped with LED filament, but also with the WarmGlow technology. In this technique, not only the brightness of the light is adjusted with dimming, but also the color temperature; this is adjusted downwards so that the light becomes warmer when dimming. This creates very atmospheric light, and that with relatively low energy consumption. The LED lamp produces a warm white light with an adjustable color temperature; maximum 2700K and minimum 2200K. At the highest brightness, a light output of 470 lumens is released, against a consumption of 3.4W (138 lumens per watt). The lamp has a small fitting (E14), a bright finish and a clearly visible LED filament. This makes the lamp look a bit like a traditional incandescent lamp, and it fits in both an open and closed fixture. The light emitted by the lamp also has a high colour rendering index (CRI value) of 90. This means that the light quality is high; the light colors look natural and very truthful.