Ok so now im not so sure, after googling the lights and coming across this german thread
http://www.motor-talk.de/forum/led-rueckleuchten-dectane-t3151136.html?page=19
I have read some horror stories, some with fog light stuck on, some with brighter LEDs on the inner lenses, and some that the resistors/connectors wont fit their car, some with only the outter tail lights lighting up under braking.
Google translated that site for me but it is broken english and some of it didnt make sense to me, so if someone wants to read from from page 14 or 15 to the end and see if im right about these stories.
Im hanging onto some hope that
@bez101 has seen these in person or dealt with customers who have bought them. If you can confirm buddy that these will 100% fit UK B8s without error or issue.
Dectane do 2 sets of the single LEDs, a cheap set and a more expensive set, the latter being an exact replica of the OEM LEDs.
I want to know about these more expensive ones, as you can see they are exactly like originals