This LED filament lamp from Philips provides a warm and atmospheric light, and does so in an energy-efficient way. The lamp has the WarmGlow technique. This technique ensures that the light can be made even warmer; when dimming, not only does the brightness of the light decrease, but also the color temperature of the light is scaled. The LED lamp has a 3.4W consumption and thus emits a warm white light. This light can be adjusted from 2700K to 2200K by dimming the lamp. The maximum light output is 470 lumens (138 lumens per watt). The lamp has a classic pear shape and a large fitting (E27), and fits well in both open and closed fixtures, where the LED filament stands out well and is reminiscent of a traditional incandescent lamp. 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.