Descriptions: Increased range is desirable in any communication application, and it’s particularly important in home automation environments. Therefor, creating the Bluetooth Network system is the the future of smart home technology. Mesh Networking system, Greater Range support up to 64 Bluetooth groups You can add the devices to different groups, control a single light or a group bulbs, it is depends on your preference. Compatible with Amazon Alexa and Google Home, you can now control your lights by issuing voice command. Notice: When Configuring the WIFI controller, it works with 2.4GWi-Fi Network(5G Hz Wi-Fi Network is not supported) Cable Length : double 0.5m , Cable length between 2 Connected Neighbouring Lights :1m Model:Φ45MM RGB+Warm White Lighting Colors:RGB+W.