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General Electric Helical 26 Watt CFL

General Electric Helical 26 Watt CFL

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Just a while ago today (2014-1-30) my mother's family room floor light on the left gave out. At first, it started to flickered for a few while. Then, it went out. I approached the offending bulb, I can smell the burnt as the ballast gotten fried. I replace the same model on the right.

P2250322.JPG P2220321.JPG P1300311.JPG PA050255.JPG

Light Information

Light Information

Manufacturer:General Electric
Model Reference:FLE26HT3/2/SW
Lamp
Lamp Type:Soft White Phosphor Coated
Base:[Medium] (one-inch) Edison Screw (E26) (Nickel Plated)
Shape/Finish:T2 Twisted (3 times)
Fixture
Ballast Type:Electronic Integral
Electrical
Wattage:26 Watts
Voltage:120 VAC 60 Hz
Current:390 mA
Optical
Color Temperature:2700K
Physical/Production
Factory Location:China
Fabrication Date:Z075 (Etch on the Ballast Box)
Application/Use:General Purpose

File information

File information

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Filename:P1300311.JPG
Album name:rjluna2 / Burned Out Bulbs
Keywords:Lamps
File Size:185 KB
Date added:Jan 30, 2014
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Displayed:194 times
Date Time:2014:01:30 20:05:51
DateTime Original:2014:01:30 20:05:51
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Exposure Time:1/30 sec
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Flash:Flash, Auto-Mode
Focal length:6.3 mm
ISO:125
Make:OLYMPUS IMAGING CORP.
Model:FE210,X775
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migette1
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Peter


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Jan 31, 2014 at 04:52 PM Author: migette1
I would be worried about the fire risk Robert

Interested in the history of electric lighting and incandescent in particular and neon glow lamps.

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Preserving the Brightest Ideas of Our Age


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Jan 31, 2014 at 06:07 PM Author: Globe Collector
Hey, Robert, I had three CFL's used in my lounge room fail in a similar manner, First they just dimmed in brightness for a few seconds and then came to full brightness again. This went on for a few hours until eventually the arc just went out and there was this smell. I cut the power immediately.
The smell had come from the series resonant capacitor, the one in parallel with the discharge.

Note that the new one on the right is different, it has (finally) dispensed with the black viterite glass base insulation, invented by Joseph Swan's brother in 1901!

Peter, that is why I cut the power right away. However my nephew has one in a desk lamp he leaves on all night when he sleeps, if it fails while he is asleep, it could fill the room with acrid smoke at the least.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

rjluna2
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Robert


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Jan 31, 2014 at 09:52 PM Author: rjluna2
I'll probably will take a crack from the plastic ballast cover and find out which one did fail when I get a chance. Probably the same failure as the CFL reflector that I sent it to Andrew some time ago.

Pretty, please no more Chinese failure.

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Jan 31, 2014 at 07:38 PM Author: Globe Collector
Yes, I can't recall now what had failed in that reflector lamp or even if I opened it. I know I opened at least one of the lamps you sent me Robert and drew its circuit but I can't now remember how it had failed. I'd have to go and get them out again.
What I did discover is that North American L.V. realm CFLs have a split series resonant capacitor (made from two capacitors in parallel) with about three times the capacitance of the single capacitor we use in 240v realms.
You can see it here...

http://www.lighting-gallery.net/gallery/displayimage.php?album=232&pos=0&pid=90205

User Medved (in Czech Republic) and myself had had a discussion about the use of voltage doubler rectifiers for 120v realm lamps followed by an oscillator and impedance march that is basically identical to 240v ream model circuits. Medved pointed out that in the event of end of life failure the capacitive reactance of the capacitors in the doubler rectifier could limit the current to such an extent that the fuse would not blow and the lamp could catch fire. Since then I have received such a lamp into my collection. It is a 55w, 120v "photographic" C.F.L.i with 5500K phosphor. Because it is quite high power rated, half the current is diverted around the preheat electrodes using diodes. Its circuit can be seen here...

http://www.lighting-gallery.net/gallery/displayimage.php?album=232&pos=0&pid=90206

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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