No bigger than a standard bulb but houses the electronics for a smart bulb. Works perfectly with the Wiz app for dimming and colour temperature changing.
These are the best bulbs I have bought in years. Very customisable ...ve use them on the warm candle setting for low ambient light. That way I don't have to clean the room.
I wanted a bulb that my Alexa device could operate on my voice command and this certainly fit the bill. It can also be set to come on and go off at set times which is ideal. You also have the options in terms of adjusting the level of glow and can also change between different shaeds of light being omitted. I am really impressed with this product.
Responsive and easy to set up. No complaints. Customisable fade on/off delay is a nice feature.