This Korean Industrial Standard specified A.C supplied electronic ballasts for fluorescent lamps which have a rated input voltage not exceeding 300 V at 60 Hz in common and a rated secondary voltage not exceeding 1000 V and are used in general place, among those for use inside a home or a luminaire to light fluorescent lamps specified in KS C 7601 (excluding Annex 2) and the low pressure mercury germicidal discharge lamps specified in KS C 7615(hereafter referred to as'lamps" ).