A free program for Android, by LEDVANCE GmbH.

The LEDVANCE SMART+ Bluetooth app is designed to allow you to control the LEDVANCE SMART+ Bluetooth products through voice commands or by using the Google Home app. You can ask Google Home or Amazon Alexa to turn your lights on and off, or to dim them, or to change the color, etc. 

The app also allows you to create groups of lights to control together. You can also create scenes that you can use to control all of your lights. You can also ask the app to play music for you, or to set the lights to a certain color. 

The LEDVANCE SMART+ Bluetooth app can also be used to control other LEDVANCE SMART+ Bluetooth products. To do this, all you need to do is to connect the products to your smart home system, and then to ask the app to control the product.