IEC 61184:2008 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 third edition cancels and replaces the second edition (1997) and its Amendments 1 (2000) and 2 (2004). This third edition constitutes a technical revision. In this edition, information to lampholders intended to be used in applications where they are accessible in normal use (class II as well as class I luminaires) are introduced. Additionally, in Table 11, lamp data where lamps no longer exist has been removed and requirements for shade holder rings have been amended to include shade rings according to IEC 60399 into testing. The contents of the corrigendum of February 2009 have been included in this copy.