This is a warm white 240V LED full glass flex filament GLS-Lamp from Calex. The bulb measures at 2100k for the colour temperature and just 4w for the wattage making this low energy and low cost choice of bulb. It can also be dimmed with the aid of an LED driver and has an advised lifetime of 15000 hours. Thanks to it39s titanium finish and flex filament the bulb is recommending for creating a unqiue look whether it39s being used in the home or for accent lighting.