Hiya Deepmeister
Thank you for your comment. It was my choice to go with a mid smoke tint so I guess that if I do get stopped I'll just pull off the film there and then, gracefully accept any fine or warning and go for a light smoke tint instead. I'm not an expert in law, but I do believe that as long as the reflectors still reflect and can be seen then it should be okay. Mine can still be seen. I Googled this for you....
In the UK, light tinting films are permitted, though to keep drivers safe there are certain requirements that need to be met when installing them: Lights cannot be dimmed by more than 50%. ... You must still be able to see their original colour - headlights need to be white/yellow, rear lights must be red.
Not sure about light intensity on the newer LED clusters as mine is a 2009 model. I think that the newer LED clusters are a bit brighter anyway and as my lights can clearly be seen then I would imagine that the LED clusters would be fine.
I would say that the lights do not so much look dimmer, but they do look darker (not sure if that makes sense)?
Take care.