DIN EN 61347-2-9 Berichtigung 1:2011
Lamp controlgear - Part 2-9: Particular requirements for ballasts for discharge lamps (excluding fluorescent lamps) (IEC 61347-2-9:2000 + A1:2003 + A2:2006); German version EN 61347-2-9:2001 + Corrigendum July 2003 + A1:2003 + A2:2006, Corrigendum to DIN