Will C9 LED bulbs work in my old Christmas light cords?
A few years ago, we had bought regular C9 bulbs and cords and we are thinking of switching over to C9 LED bulbs. Would we need to purchase different cords or could we use the ones we bought previously.
Short Answer: Yes
(That being said, we have seen a few folks with non-standard light strings that had something wonky with the upper edge but “most” of the time, this should be a great fit. The engineer in me can’t say “always” without flinching!!)