I have updated and re textured my down lights. it is still just as hard to take decent pics though.
The top pic is taken with the brightness turned down about a quarter, I more or less did this to try and get a decent pic. The pic below is with them not turned down, as you can see they are quite bright. The second to bottom one is just with yellow tinged light.
It will just overwrite any old file if you have kept the name the same.
This creation is Non-default.