Cool Green lamps were made that late? Cool!
Is the Grow-Lux a GE?

I'm not sure on the age of any of the lamps. The CG I probably got 18 to 20 years ago (its the only 1 left of 4 I originally got - the others were used up)
Industrial still makes a CG, but I don't know how it compares to the GE ones.

The Grow-Lux is either GE or Sylvania (don't remember .. that one is probably gone now after being removed from this & used as a plant light) - but if I had to guess I'd say GE just from the blackening pattern..

Looks like GE to me...are the other colored lamps from that era?

C75 is same era as the CG (its possible the CW could be too) but WW & Gro-Lux are both a fair amount newer

I see...is the WW a Philips?

Yep, I think the WW was a Philips similar to the CW one

I think you're right...
Pardon my ignorance but is triphosphor (post-EPACT) warm white pretty much the same as halophosphate like my MainLighters?

I really don't know on that.. to me they all look fairly similar in color (might have to do a side by side comparison sometime)
Personally I hate all that government regulation crap (EPACT/etc) LOL

Ditto...but I think more energy efficient technologies should be encouraged but nothing banned...

Exactly right...so much for a free market/country when we can't decide anything for our selves

I agree with that too
Only thing that should be banned is low-quality junk that doesn't even last a year LOL