This standard specifies the dimensions, performance, and test methods for type inspection of high-pressure sodium lamps (hereinafter referred to as lamps). Additionally, design information for ballasts, starters and luminaires is specified.
JIS C 7621:2006 history
2011JIS C 7621:2011 High-pressure sodium vapour lamps -- Performance specification
2006JIS C 7621:2006 High-pressure sodium vapour lamps -- Performance specification