| How to identify the date of manufacture on GE bulbs from 1980 to the present by batch number?
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I've been collecting light bulbs since I was 2 years old and I've been collecting them ever since.
One of the few Chinese users here
Note:
Bulb base in China:E12(CES) E14(SES) B22d(BC) E27(ES) E40(GES)
