IEC60061-3: 7006-21-5 E27 Gauge for Testing Protection Against Bulb-Neck Damage and for Testing Contact-Making in Lampholders.
According to standard IEC 60061-3.
IEC60061-3: 7006-22A-4 E27 Gauge for Testing Contact-Making and Protection Against Accidental Contact During Insertion of Lamps in Lampholders.
According to standard IEC 60061-3.
E27 Gauge for Testing Contact-Making and Protection Against Accidental Contact During Insertion of Lamps in Lampholders 7006-22A-5
According to standard IEC 60061-3.
Nina She