The LED lamp 1S (Dimmable) can be dimmed as desired to create the right atmosphere. Using the light group control function, several lamps can be switched simultaneously. With only 8.5 watts and a lifetime of 22 years, the lamp is cost and energy efficient. It has built-in Wi-Fi (no hub needed), supports voice control (with popular smarthome platforms like Amazon Alexa and Google Assistant) and can be operated with smartphone via Yeelight app. The Yeelight Smart LED Lamp 1S (dimmable) is equipped with high-performance LEDs emitting a warm color temperature of 2700 K and adjustable brightness between 5% and 100%. The brightness adjustment allows you to create the right atmosphere at any time and any occasion. With Yeelight iOS and Android app, you can easily control your lights on the move. You do not have to worry about turning off all the lights when leaveing - just look in the app and adjust as desired. In addition, you can use the Yeelight app to link several lamps together controlling groups of light at the same time and synchronizing the entire lighting in a room. The smart light not only brings great benefits on the road, but also at home: you are reluctant to wake up at 7:00 in the morning by the alarm clock? Set your light to brighten your day slowly in the morning and the room is already illuminated at rising time. Or program the lighting to dim the light slowly when falling asleep. You can also create your own light scenes. If you like a particular light setting, you can set it as a custom mode and then recall it with just a tap.