Another update.
I needed to get
something done today.
So, I got the LEDs in the dash.
Size of the LEDs:
Mounted:
Turn signals lit up, the light level is perfect. They're clearly visible with all the lights in the room, and, not too bright when it's completely dark with all the lights off.
I had to hook them up to a battery to see what it looked like.
Even with the camera flash on: