The dimensions aren't listed on the stores site. I'd like to know what the height/diameter are so I can sketch out my design.

Thank you

its just over 2" in diameter (for sure.. 2.25" maybe) and maybe 2.5" high ( just a guestimate since I can't remember)

and i believe it raises the bulb by 1"
most bulbs are crooked when placed in the mogul...
so i imagine there is variance

edit: image removed, bad link

You also need to take into account that part of the bulb will be inside the mogul.
Not sure how deep though.
I know we aren't much help. lol