I may be the last to know this, but I see Lumintop uses the same "serial numbers" over and over. Even the same number on a different model. Is this actually some batch date code?
I don't think Lumintop quite understands what serial numbers are supposed to be.
In their case, it seems they use the same number for every light of a particular model. I think it's just meaningless decoration, not an actual serial number.
It is even stranger I think. I have the same model in different numbers, the same numbers. Six FWAA with 2 different numbers for the lot. And then, both my FW21 Pro CU and my FW21 X9L Cu share the same number.