@Sam1832 was kind enough to jumble sale his 18 SMD number plate LEDs to me.
Here they are fitted
Pic doesn't do justice. They are very very bright and look white with a slight tint of blue.
I then got thinking about the poor OEM reverse bulbs. They are fairly dim and are a bit yellow. I also find it a bit difficult to see out the back sometimes on dark streets so thought about upgrading my bulbs.
I did a bit of research and found these bad boys
2 x CREE Q5 5W HIGH POWER LED P21W 1156 382 BA15s STOP TAIL REVERSE BULBS BMW | eBay
Although they appear to be a bit pricey (circa £20 for a pair) they had got some good reviews and some people experienced dramatic before and afters.
They arrived a few days later (today). This is what they look like up close
As you can see, they are pretty high quality and even have a projector lens fitted
Here they are vs. a regular OEM bulb
Quick test during fitting
So, onto some before and afters
Do they make it easier to see out the back? Certainly!
Thanks for looking