This part of the IEC 61820 specifies the requirements for power electronic converter systems (PECS) dedicated to powering aeronautical ground lighting (AGL) circuits with series circuit topology. An example of a traditional implementation is an AGL circuit with 6.6 A RMS nominal current, powered by a constant current regulator (CCR). In addition to revising the requirements for 6.6 A CCR setups, this standard introduces requirements for general PECS for new AGL systems including ones specifically designed for LED based luminaires.