NFC LED nail stickers (pack of 5) question

Are these NFC stickers actually nfc tags AND led lights, or just LED lights that light up in an nfc field? I find the description highly lacking and confusing.


Looks like they will be discussed in the next bilge Tank Video, you might want to watch it and maybe get some better info on them.

“These teeny-tiny little NFC LED stickers power themselves when in an electromagnetic field”

Sorry if it wasn’t clear. I’ve added a note to the shop description: “Note: these are not NFC data tags (if you want tags, then we have them too), they just light up when in the vicinity of a NFC signal.”