LED (light emitting diode) smart A21 full color light bulb. Brings smart lighting for your daily living. Retrofit into any lamp shade to create the ambiance of your choice with 16 million colors as well as warm to cool white light. You can set schedules to turn lights on and off according to daily or weekly routines, control with your smartphone or your voice, and have remote access to your lights even when you are away. Connect to your existing Wi-Fi, no additional hardware is needed. Compatible with Google, alexa, and Siri. Easy plug and play installation.