These V-TAC LED smart bulbs are designed with a Samsung LED chip, enabling you to connect between Amazon Alexa or Google Home, so you can control the light with the V-TAC Smart Light app. Change the colour, dim the lights, turn them on or off, schedule a time, put them on a timer, and more. Requires Wi-Fi 2.4GHz and is dimmable by app and voice control only. The total lifespan is 25000 hours.