The GE 6B (LEFT) and the Sylvania FP 26B (RIGHT) were similar in terms of light output. They were not identical however. See Photo. In day to day use you could most likely interchange them and never see the difference in the prints. So in that respect you could say there were the same.
Note in the Sylvania Data Sheet posted above there is a table with a column heading titled : Nearist Comparable Bulb (Other Mft.) There the 6 B is listed as being roughly equal to the FP 26B
Last edited by brianmquinn; 03-24-2011 at 10:02 PM. Click to view previous post history.