Afternoon all

Banging my head against the proverbial brick wall at the moment. I have one of the Equinox Micron cloths (white) which I retired a little while ago due to having LEDs out.

I've had the chance to take it all to bits this afternoon to have a look (it's eventually being re-purposed into the Rustic booth) and I've identified the culprits (just two but they affect an awful lot of others).

Anyone know what spec of LED I'm looking for? I can't see anything on the LEDs themselves, and hunting on line is drawing a complete blank at the moment