T-3 Headlights

[lzdick]

Are T3 headlights date coded? I am looking at the top above the large "2" and smaller "12-V" (for a '69 Camaro lamp) and there is a letter and one or two digits. Does anyone know the significance of these letter/digits? http://www.yenko.net/ubbthreads/images/graemlins/confused.gif

[Mr70]

Can you relay those exact codes you see?
I might be able to decode it,but these were not all coded the same way.
It's hit or miss with Delco Headlamps.

[lzdick]

Rick, here are several of the codes: B53, G45, H29, H119, I25 and L71. Hope these make sense and are decodeable.