IEC 61347-1:2007+A1:2010 specifies general and safety requirements for lamp controlgear for use on d.c. supplies up to 250 V and/ or a.c. supplies up to 1 000 V at 50 Hz or 60 Hz. 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 second edition (2007) and its amendment 1 (2010). Therefore, no need to order amendment in addition to this publication.