Hello all,

I have been researching the watt-miser line of tubes and have created a basic timeline for the F40T12 variant, seen below.

1974: 35w watt miser tubes came out.
1978?: lite white lamps were introduced, Lite white was also called Watt Miser II
1981: Switched to 34w lamps
1988: Went to black etched lamps, removed watt miser II nomenclature for Lite white
200x: Line was discontinued

Anyone know where the 32w plus lamps fit in or when it was discontinued?

32 watt T12 4 footer watt-miser   Required a ballast on it own.  So it never really took off.

 I do know Norelco ( philips) made 35 watt tubes
 Into mid 1980s.  As I have a pair of norelco screw balls
 35 watts made on westinghouse machinery.

  Well I would say first energy saving tube would be F90T17 as it was orginally  F100T17