The lens appears to be available at
Command Electronics for $4.49 each plus $8-$10 S&H. Have to select the Amber Lens.
Does an amber lens reduce bugz ?
ps posted to the earlier thread first but belongs here.
pps my 2720 has four "porch" lights. One at either side of the awning, one on the left front lighting the tongue, and one above the street side shower.