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Duro-Lite 40w Vita-Lite Power-Twist

Duro-Lite 40w Vita-Lite Power-Twist

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I love the power twists! Power twists go by the TH tube shape rather than just T.

PC190004.JPG PC190005.JPG PC190008.JPG PC190009.JPG

Light Information

Light Information

Manufacturer:Duro-Test
Model Reference:40w Vita Lite
Lamp
Lamp Type:Fluorescent
Base:Medium Bipin
Shape/Finish:TH-12
Service Life:24,000 hours
Electrical
Wattage:40w
Current:425 ma
Optical
Lumen Output:about 2300
Color Temperature:5500K
Color Rendering Index:91
Physical/Production
Dimensions:48 nominal inches
Factory Location:Clifton, NJ USA
Fabrication Date:1997

File information

File information

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Filename:PC190008.JPG
Album name:silverliner / Fluorescent - T-12 and larger
Keywords:Lamps
File Size:71 KB
Date added:Feb 23, 2010
Dimensions:768 x 1024 pixels
Displayed:374 times
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Comments
vintagefluorescent
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Feb 24, 2010 at 12:22 AM Author: vintagefluorescent
I love this one Too !!!!!!!!!!!!!
DaveMan
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Feb 24, 2010 at 03:10 AM Author: DaveMan
Gotta love the power twists. I hope to find some more of them. I have one but it is well used. However, despite being well used even when I got it, it has been in use on a daily basis for a several hours a day since at least January 2008.

David L.
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DieselNut
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jonathon.graves johng917 GeorgiaJohn
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Feb 24, 2010 at 12:55 PM Author: DieselNut
Those are neat! You got quite a unique find, it looks like!

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 05:56 PM Author: Silverliner
I have three 4' power twists. This one was given to me by j-frog through a trade in person. The other two are the rare Ultra-9 TH-10s designed to operate on T-8 ballasts or T-12 electronic ballasts. The latter were purchased at a bulb supply store up in Northern Calif about 8-9 years ago.

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

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Bulb Freak
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Feb 22, 2012 at 12:58 PM Author: Bulb Freak
I just got 3 power twist tubes one is 4ft T12 and has GE end caps. one is 3ft T12 and has sivaner/philips end caps but has racone eye insulaters and a 2ft T12 one with the same caps as the 3ft one.how old and how rare are they (I know they are rare in the UK but how rare are they in the US)

My other hobby is buses, especially the Routemaster

DieselNut
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jonathon.graves johng917 GeorgiaJohn
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Feb 22, 2012 at 01:53 PM Author: DieselNut
I now have one similar to this and four of the "Ultra 9" (T9) version.

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

J-Frog
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Feb 22, 2012 at 07:13 PM Author: J-Frog
Got two of these style, a couple with the GE endcaps, and one old Turquoise colored one with the extra twists, all F40. The old Turquoise is my favorite one

Jeremiah The Bullfrog

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GoL
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Feb 22, 2012 at 08:42 PM Author: Silverliner
Jeremiah that's one nice lamp! I have since added another power twist, a rare cool white.

Oh John (dieselnut), the Ultra 9s are actually T10 (TH10) despite what the name might imply.

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

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jonathon.graves johng917 GeorgiaJohn
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Feb 22, 2012 at 10:12 PM Author: DieselNut
They sure appear smaller diameter than the T10s I have. Actually, the end caps appear to be like T8s and the tube is "necked down" to fit in it. May be T10s, but appear to be between the T8 and T10 in diameter?

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

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kashba333
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May 17, 2013 at 06:40 PM Author: Kashba333
There is one Power Twist on my school and is reaching EOL but we love it! I asked the headmaster for it when it burnes out and he said me that i can bring to my home!

The light bulb is probably one of the best inventions ever! Whit out this awesome object, the history of humanity could be another!
I love HID and Fluorescent (specially SlimLine) bulbs so my collection bases on that! Please return MV/T12!

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