This stuff has never been very impressive. It's a lossy fibre optic material that emits light along its length when illuminated at the end.
https://www.youtube.com/watch?v=NpiddGxC7jo
Maybe this is just poor quality stuff, but it pretty much matches my previous experiences with it.
Jonathan Hughes
2021-05-17 23:42:09 +0000 UTCJonathan Hughes
2021-05-17 23:24:31 +0000 UTCBig Clive
2021-05-17 04:42:20 +0000 UTCMr B Shepherd
2021-05-16 12:09:24 +0000 UTCMichael Thompson
2021-05-15 19:15:10 +0000 UTC