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FMR G.E. #30475 CL, Quartz Long Life (HRG) 600 w T-5 cc-8 LCL 2" GX 9.5 (Universal Burn)(Axial 16x6mm Filmt.) 3,050̊K 12,600 Lum 2,000hr


Hmm, are you sure you were using a FMR lamp? Seems unusual to use that lamp base type of lamp in a fixture I would expect with a fixture of different type of lamp base I think. Sure it was not a FLK or something else?

I note a lot of listings on the lamp using a GX, GY and GZ lamp base dependant upon the brand and what they call their lamp base.

This is what I can gather:
G9.5 = Medium 2-Pin (w. Heat Sink for HPL)3/8" o.c. bet. Pins / 9.53mm oc. Bet. Pins 15/16" at top of Skirt and 24mm wide at horz. width Pin Dia is 3.17mm at 11.4mm long. (LCL at Bot of Ceramic/Alum Base - Where Pins Come Out)
GX9.5 = Skirted Medium Prefocus 2-Pin Pin dia is 3.2mm x 8.4mm Long, 9.5mm oc. (LCL at Bot of Ceramic Base - Where Pins Come Out) Note: Porc. Alignment/Spacer Pegs coming out of Base at Bot. This 9.5 Base is Larger Rectangle than GY base, with Center Alignment Slot Pn Dia is 3.17mm DIN #49638, IEC #7004-70A
GY9.5 = Skirted 2-Pin Medium Prefocus Pin Dia is 3.2mm & 2.4mm, at 9.53mm oc. Pin Length is 8.6mm, Skirt Width is 30mm. (Higher Wattage) (Base Makes Cross Shape) (LCL at Bot of Ceramic Base - Where Pins Come Out) (Smaller Shape than GX 9.5) IEC #7004-70B, AnSI #C81.61-1990sheet 1-369-1.
GZ 9.5 = Pins are two different Dia. 3.2 & 2.3mm Dia. 8.6mm Long Porc. is 24mm Wide. 2-Pin Prefocus (LCL at Bot of Ceramic Base - Where Pins Come Out)

Your lamp should not fit in the above fixture and is not rated for it.

Hmm, the Leviton website does not give much in deail, I'll have to take it for granted that this is the lamp specified for the fixture. Possible but not normal.

Your specs are a bit less than mine for color temp. and luminous output as the GE norm/standard. Given even if you are using a 750w long life lamp at 120v, you should have a bit more more output than that of a FMR lamp given the same voltage rating. Filament size optically is also on the FMR much less efficient, this in addition to in general zoom fixtures being less efficient in use of light.

Have to think that there is more here by way of lamp or what the new fixture is compared to in detail. Before that, can't really say why the newer fixture would "appear" to be more bright than the other. On the other hand if confirmed, that would be really bad news to ETC.

Even bench focus up by about 4.3mm and you can now install a 1.2Kw Ushio #1001787 JCS 120v-1200w C lamp in it. Puts the output of a FEL to shame and no doubt your follow spot also. This along with adjusting down some to fit the VL-5 Phillips #71-2529 lamp that I don't have specs on but should also be brite at 1.2Kw.

Lots of other lamps available but it all assumes Colortran/NSI/Leviton is now using a very much less used lamp base style as opposed to a more normal TP-22 style G-9.5 base. If incorrect in lamp type, than say a question more of long life verses high output and specific to many types and brands in what they specifically have.