check this site...
I have the Lite ON 32123S which is a 32 x 12 x 40 burner. The "s" version I believe can be upgraded a little, but the "w" version can be upgraded even more. I don't know the details, but if you go to
h**p://club.cdfreaks.com/forumdisplay.php?forumid=44
this is a forum dedicated to just Lite On burners, you can find your answer for sure here because I've seen it at one time.