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EOL Lamps in my Garage

EOL Lamps in my Garage

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One EOL F40T12 from Sylvania in my Garage on NPF Electronic Rapid Start Ballast.

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Filename:BILD2288.JPG
Album name:T12electrician / Fluorescent Lighting
Keywords:Lamps
File Size:1034 KB
Date added:Sep 08, 2013
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Date Time:2007:03:03 20:00:09
DateTime Original:2007:03:03 20:00:09
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Ash
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Sep 08, 2013 at 07:24 AM Author: Ash
How well did the lamps last on this compared to Switch Start ?




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Sep 08, 2013 at 08:03 AM Author:
Well i guess on Switch Start the lamps would have latsted a little longer, as these are slightly underdriven because the Ballasts are built for 277V at 60 Hz but i`m operating these on 230V at 50 Hz. But the Ballasts do quite well on 230V.
funkybulb
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Sep 08, 2013 at 08:50 AM Author: funkybulb
Does a 36 watt T8 run on 277 volt ballast?
I tried it on 120 volt 60 Hz rapid start, it
Won't even strike up. 36 watt T8 is a kind of a
Pointless lamp in USA for a 40 dollar lamp.
Welcome to Lg

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





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Sep 08, 2013 at 10:47 AM Author:
No, the 36 watt won`t start on the Rapid Start Ballasts. The Buffergas ist diffrent, and you need a higher Voltage to start the lamp, so only T12 lamps or 32W T8 Bulbs will run on these Ballasts.
funkybulb
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Sep 08, 2013 at 12:14 PM Author: funkybulb
Thank that conclude my thought, that I won't be conducting that experiment on 277v ballast, I find 36 watt lamp will run on F32 HF
Ballast, or preheat 40 watt fittings. I Have couple of 36 watt tubes in my collection.

We have 34 watt energy saving lamps for rapid start but they are junky tubes

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

Kev
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Sep 08, 2013 at 12:44 PM Author: Kev
If they are the standard slyvania 40W from recent years they are pretty poor anyway with their stick cathodes

Voted to leave the EU and proud! 👉🏻🇪🇺🇬🇧

Naomi
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ad0rabelle
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Sep 08, 2013 at 01:07 PM Author: Naomi
LOL (Lots Of Light) in your garage .
Powell
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Sep 08, 2013 at 01:27 PM Author: Powell
The US Sylvanias do quite well, Kev, though when new tend to be swirlers for awhile. What do you mean by stick cathodes?

NNNN!

funkybulb
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Sep 08, 2013 at 01:38 PM Author: funkybulb
Powell
Kev is referring to German made harvells tubes, some of those SLI tube we get from
Harvells sylvania plant seem to be junky tubes like Philip altos

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

Kev
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Sep 08, 2013 at 02:09 PM Author: Kev
Instead of having coils on the cathodes it's just a bar. If you put a Philips GE or Thorn tube against one of the last sylvania tubes they would out last it X2 or more! The last 8' 125W they made were absolutely god awful!

Voted to leave the EU and proud! 👉🏻🇪🇺🇬🇧

Powell
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Sep 08, 2013 at 02:17 PM Author: Powell
The current GE and Sylvania lamps here hade a long strip cathode. with a VERY fine coil. The GE lamps don't don't much blackening until within under a 100 hours or less from EOL. Sometimes they will end band. The Sylvania lamps have some browning and when a black spot starts.... time to look for a replacement. The Sylvania Design 50 I replaced last year had a 2004 date. I replaced the other lamp at the same time as it had a brown spot that had morphed to almost black. The GE Sunshine lamps ( ECO) are getting dim. One EOLed and the other is OK. The older lamp has neat end banding. I have some of the new 5000K bulbs GE makes that are 2900 lumens. A local place was selling some 32 watt T8 Havells made in China. Hmmmmm.

Kev, when you say "bar" are you referring to a very fine long superfine coil of filament / cathode and not a double coil?

NNNN!

Kev
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Sep 08, 2013 at 02:27 PM Author: Kev
I'll upload a picture in a bit and show you from my half coated Powell!

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FrontSideBus
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Sep 08, 2013 at 02:42 PM Author: FrontSideBus
Kev means a triple coil like this:

http://www.lighting-gallery.net/gallery/displayimage.php?album=2854&pos=7&pid=81482

Holds far more emitter than a straight coiled-coil in the new Germany Sylvania's.

UK out of the EU!
http://www.lighting-gallery.net/gallery/index.php?cat=11271

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Sep 08, 2013 at 03:15 PM Author: Powergroove
Looks like the other lamp is close to EOL as well. Nice to see T12's still in use.

Keep government out of the lighting industry.





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Sep 09, 2013 at 10:28 AM Author:
This EOL lamp is a US Sylvania but has only a singele coil Filiament, which now is laying on the inside of the Tube.
The other lamp is a vintage Osram 40 W from the 1960`s that has lots of hours on it, but is still running well.
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jonathon.graves johng917 GeorgiaJohn
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Sep 09, 2013 at 01:04 PM Author: DieselNut
@funkybulb, the 36 watt T8 will fire up nicely on preheat/switch start. I got some from Kev and put them in a Sylvania HF100 fixture with a .85 amp Universal ballast and common glow starters to test them. Bright suckers too!

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

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Sep 09, 2013 at 02:14 PM Author: Powell
The F36T8 (4 foot) works perfectly in my 1950s preheater. Works in HF. Not even a hint of a glow in rapid start. I've not tried to preheat one end with a battery to see if it will light in a rapid start fixture.

NNNN!

dor123
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Sep 06, 2017 at 02:09 AM Author: dor123
I think "Rapid-start" in electronic ballasts, is different than in magnetic ballasts. Magnetic rapid-start constantly provides cathodes heating, before, during and after ignition, via a seperate transformer or winding inside the ballast, and don't uses HV to start the lamp. Electronic rapid-start, are actually resonant start and not rapid start according to their operation principle. [url=http://www.lighting-gallery.net/index.php?topic=5153.0] See this thread [/url.

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.

Kev
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Sep 06, 2017 at 03:58 AM Author: Kev
Good point dor

Voted to leave the EU and proud! 👉🏻🇪🇺🇬🇧

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