Improvement of the energy efficiency of at least one light source having lighting system and corresponding lighting system

摘要

The invention relates to a method for improving the energy efficiency of a lighting system having at least one light source (3), the light source (3) being connectable to an external electrical energy source, for example the network, for power supply via an operating device (2). To avoid standby losses, which arise when the operating device (2) has to be connected to the mains even in the inactive state in order to generate the necessary starting energy for the semiconductor ICs (8) when a switch-on command arrives via the bus, It is proposed that additional light from the light of the light source (3) not used for lighting purposes or from the direct or indirect light from neighboring lights (2) or from the ambient light is obtained by photovoltaic energy conversion and the operating device as starting energy for the semiconductor ICs (8 ) is supplied. In this way, the operating device (2) can be disconnected from the network at least during the inactive state.