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Sylvania F40/IF Incandescent Fluorescent

Sylvania F40/IF Incandescent Fluorescent

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Hard to see, but this lamp has a light yellow filter coating for the super warm color. Pretty close to an incandescent lamp, but VERY dim!

PC190019.JPG PC190002.JPG PC190004.JPG PC190005.JPG

Light Information

Light Information

Manufacturer:Sylvania
Model Reference:F40/IF
Lamp
Lamp Type:Fluorescent
Base:Medium Bipin
Shape/Finish:T-12
Service Life:20,000 hours
Electrical
Wattage:40w
Current:425 ma
Optical
Lumen Output:about 1700
Color Temperature:2700K
Color Rendering Index:92
Physical/Production
Dimensions:48 nominal inches
Factory Location:likely Danvers, MA USA
Fabrication Date:1992

File information

File information

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Filename:PC190004.JPG
Album name:silverliner / Fluorescent - T-12 and larger
Keywords:Lamps
File Size:44 KB
Date added:Feb 23, 2010
Dimensions:1024 x 768 pixels
Displayed:272 times
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DieselNut
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John


jonathon.graves johng917 GeorgiaJohn
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Feb 24, 2010 at 12:51 PM Author: DieselNut
That is a new one to me! They had to make it dim to be as inefficient as an incandescent, huh? Was this one of your recent finds?

Preheat Fluorescents forever!
I love diesel engines, rural/farm life and vintage lighting!

Silverliner
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Verd a ray classic.


GoL
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Feb 24, 2010 at 05:52 PM Author: Silverliner
No, I got it from Don93s a few years back. It's dim partly because of the high CRI at a low color temperature, and partly because of the light yellow filter that blocks some light.

May all the great lighting technologies have their place in history.

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Luminaire
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Apr 26, 2012 at 12:20 AM Author: Luminaire
How does this compare to CRI 95 Philips TL930?
dor123
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Apr 26, 2012 at 01:14 AM Author: dor123
This lamp isn't dim because of the low color temperature and the high CRI, but because of the efficiency of the phosphors to convert shortwave UV to visible light, which is very poor in that case.
The light yellow filter may contribute to this.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

Luminaire
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Apr 26, 2012 at 01:35 AM Author: Luminaire
Is it really filtered? I have like 18. I should smash one open.
dor123
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Apr 26, 2012 at 02:54 AM Author: dor123
Luminaire: You shouldn't need to smash the lamp to see if it is filtered, You can simply see its body color when turning off.
I think that if this lamp have a slight yellow tint to it, this is the phosphor body color and not an external filtering.
Not all types of phosphors have a snow white body color.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

Silverliner
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Verd a ray classic.


GoL
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Apr 26, 2012 at 10:18 AM Author: Silverliner
@Luminaire, I have a TL930 and it seems similar to the incandescent fluorescent lamp, the TL90 series are even halophosphate with additional phosphors for the high CRI. BTW i recently got a second IF lamp from a Restore.

May all the great lighting technologies have their place in history.

Administrator of Lighting-Gallery.net. Need help? PM me.

Luminaire
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Apr 26, 2012 at 11:15 AM Author: Luminaire
What's a Restore and what did it cost?
icefoglights
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ITT Low Pressure Sodium NEMA


GoL
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Apr 26, 2012 at 11:22 AM Author: icefoglights
ReStore

01010010 01101111 01100010 01100101 01110010 01110100

funkybulb
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Apr 26, 2012 at 12:38 PM Author: funkybulb
@ luminare for restore location search. http://www.habitat.org/cd/env/restoreUS.aspx

No LED gadgets, spins too slowly.  Gotta  love preheat and MV. let the lights keep my meter spinning.

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