E39 lamp holder gauge, E39 lamp through regulation, E39 lamp holder only regulation, against accidental contact gauge

E39 lamp holder gauge, E39 lamp through regulation, E39 lamp holder only regulation, against accidental contact gauge
 

Product description:

E39 lamp holder gauge; E39 lamp through regulation; E39 lamp holder only regulation; against accidental contact gauge

Through regulation 7006-24B-1

Only regulation 7006-24C-1

Against accidental contact gauge 7006-24A-1