This bulb is a LED A19 smart bulb that can be turned on and off through voice orby using the Geeni app. These smart light bulbs have Wi-Fi built right in so they are easy to set up and use. These bulbs require no hub, gateway, or additional hardware to install. Simply download the app, twist in the bulbs and connect. With the Geeni app, you can control your smart bulbs from anywhere, anytime. If you prefer to use a hub, these bulbs will also sync with that device. You can program your smart bulbs to flick on and off at certain times throughout the day with the Geeni app. These bulbs make it easier than ever to set a routine for your home's lighting. Set the bulbs to come on at sunset and go off at bedtime.