Well I thought I had an image to post here but I cant seem to get it to work.
I just tried for the 3rd time.
To many buttons involved.
Press this button add this tag.
Go here do this, then that.
And no B.S. button, my loss I guess.

Ok It became a challenge.

BTW
I used a section of a 16oz. sz Aqua Fina water bottle
for the lamp window. If you cutout the entire middle section
of the bottle then cut the section so it will slip around the
can you will find the window grabs the can with enough force to
stay in place.