E27 75 w led bulb warm by click with a very natural colour rendering index ra95 by carusthis bulb comes not only with a dimming function but also the luminous colour can be changed to create various different lighting scenarios the luminous colour can be set within the range of warm white 2 700 kelvins to extra warm white 1 900 kelvins via the light switch thanks to the effective led technology the bulb is also energy saving and has an impressive lifetime of up to 25 000 hourschara