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Does anyone know this date code?

Posted: Sun Jul 12, 2020 3:16 pm
by Oliver
I have some Osram 8w tubes. The date code on one of them is "z3Y4c". Can anyone tell me what that means?

Re: Does anyone know this date code?

Posted: Sun Jul 12, 2020 11:26 pm
by James
Italy, 2003/2013, Week 51, Day 4, Shift 3.
See link here http://www.lamptech.co.uk/Documents/Cod ... resent.pdf

Re: Does anyone know this date code?

Posted: Mon Jul 13, 2020 1:05 am
by Oliver
Thanks very much! Do you know when they started putting LEDVance on the packaging?

Re: Does anyone know this date code?

Posted: Wed Jul 15, 2020 12:57 am
by James
The formal Ledvance:Osram split happened in July 2016, but it may have taken a few months after that for all packagings to be updated.