I have no idea. If you click on the Specifications tab, it gives the measurements of the slip case. You might try looking up the measurements for the light cover and possibly make a reasonable determination whether or not it would fit. That's what I did when I decided to go with the Medium size version of this padded pouch from Tom Bihn. The Small sounded like it would be too small, and while the Medium is a little oversized, it's not too bad and will probably serve it's purpose as extra padding while it rides around in a messenger bag during an upcoming trip.
http://www.tombihn.com/page/001/PROD/ACC/TB0318