The spot size of the laser beam at the end of the range depends on eye safety standards. The offered Li-Fi routers will be eye safe and comply with IrDA standards of laser class 1.
A 3 m spot size at 10 m range is large enough to be able to connect different receiving units simultaneously.
At 5 m range the beam is only 1.5 m wide. Further versions, mainly for industrial applications are offered with a 20 m-range. These versions will also be able to serve in the deployment of network infrastructures within buildings. These versions will have a different spot size.