I suspect the same thing..EVL and Fluorex are the same bulb..only EVL obtained a patent by incorporating the ballast into the bulb....Delta tested the FLX with his radiometer and said it showed across the whole spectrum. btw..the re-placement bulb is $13 for the FLX opposed to $100 for the EVL..and at $30 per light..well..do the math..
XzoomD