The bulb has an E27 screw-in base, which happens to be the commonest kind of family base, but You may as well pick it up by using a B22 foundation just in case which is greater for your private home.  This Web site https://ianwefc210696.ageeksblog.com/28582192/tapo-dubai-wifi-camera-motion-sensor-smart-button-light-bulb-wifi-plug-an-overview