One Bluetooth dimmer is required per luminaire. Every luminaire of the EVO series, which is equipped with the dimmer, can be dimmed between 0 and 100% via the Bluetooth mesh technology. For easy operation of several luminaires, individual groups can be formed in the SANlight Mesh App. Thus, several luminaires can be dimmed simultaneously and comfortably via slider. The SANlight Mesh app is available for free in the Google Play Store.