Control up to 10 lights with the Bluetooth app Control lights with your voice* Set the right mood with warm to cool white light Unlock the full suite of smart lighting features with the Bridge A perfect fit for spotlights, GU10 bulbs give you the best light for your daily routine. With tunable white light and ultra-low dimming, you can adjust your lights to perfectly match every moment of the day. Features Software upgradeable Yes Number of switch cycles 50000 Deep dimmable Yes Dimmable Yes Rated lifetime 25000 h Bulb lifetime 25000 h Bulb power 4.2 W Power factor 0.5 Color Rendering Index (CRI) 80 Luminous flux 400 lm Colour temperature (max) 6500 K Colour temperature (min) 2200 K Light colour Variable Bulb size GU10 Bulb shape Spot Fitting/cap type GU10 Product colour White Interface Bluetooth/Zigbee Type Smart bulb Performance Works with Apple HomeKit Yes Works with the Google Assistant Yes Works with Microsoft Cortana Yes Works with Amazon Alexa Yes Mobile operating systems support