The fourth ELIoT F2F meeting was held in Eisenach at Weidmüller’s site on 4th and 5th of November 2019. The agenda included an update on the running and upcoming work packages and technical discussions. One major topic was the 5G/LiFi integration, supported by a demonstration of such a handover by the project partner Fraunhofer FOKUS. Other topics were the six different demonstrators, functionalities of the existing baseband chip sets for LiFi and the upcoming EU review meeting in January. The social event took place in a nice restaurant in Eisenach.