Specifies the lamp dimensions, electrical characteristics for lamp starting and operation together with information for ballast, ignitor and luminaire design purposes. This is a loose-leaf publication. Amendments containing new and revised sheets are issued periodically. This consolidated version of IEC 60662 is based on the first edition (1980) and its amendments 1(1986), 2(1987), 3(1990), 4(1992), 5(1993), 6(1994), 7(1995), 8(1995), 9(1997) and 10(1997). It bears the edition number 1.10.