IEC 61547:2009 for electromagnetic immunity requirements applies to lighting equipment which is within the scope of IEC Technical Committee 34, such as lamps, auxiliaries and luminaires, intended either for connecting to a low voltage electricity supply or for battery operation. Excluded from the scope of this standard is equipment for which the immunity requirements are formulated in other IEC or CISPR standards. The main reason for this revision is to update the dates of the references to the basic standards which also required some editorial changes in the tables. The contents of the corrigendum of April 2010 and Interpretation Sheet 1 of June 2013 have been included in this copy.