IEC 61184:2008+A1:2011 applies to bayonet lampholders B15d and B22d for connection of lamps and semi-luminaires to a supply voltage of 250 V. This standard also covers lampholders which are integral with a luminaire or intended to be built into appliances. It covers the requirements for the lampholder only. This consolidated version of IEC 611843 consists of the third edition (2008), its amendment 1 (2011) and its corrigendum of February 2009. It bears the edition number 3.1. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. A vertical line in the margin shows where the base publication has been modified by amendment 1. Additions and deletions are displayed in red, with deletions being struck through. This consolidated version consists of the third edition (2008) and its amendment 1 (2011). Therefore, no need to order amendment in addition to this publication.