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F34t12 watt miser high hours in a preheater

F34t12 watt miser high hours in a preheater

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Interesting burn marks indicates those ballasts hated working these lamps. It just goes to show you how uneducated and not caring what type of lamp going into certain fixture's.

20190714_200029.jpg 20190714_200009.jpg received_595023160988645.jpeg received_490810241744253.jpeg

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Filename:20190714_200029.jpg
Album name:veryhighonoutput / F40
Keywords:Lamps
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Date added:Jul 14, 2019
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Date Time:2019:07:14 20:00:29
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chrislights
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Jul 15, 2019 at 12:40 AM Author: chrislights
Interesting wearing mark!

Say NO to ban at Incandescent light bulbs!

rjluna2
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Robert


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Jul 15, 2019 at 05:59 AM Author: rjluna2
What causes this wear mark?

Pretty, please no more Chinese failure.

don93s
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Jul 15, 2019 at 08:12 AM Author: don93s
That could be from the conductive starting aid coating...perhaps the inductive kick from the preheat was causing it to arc on those spots.
dor123
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Jul 15, 2019 at 09:30 AM Author: dor123
These lamps have an electrically conductive coating outside them, to lower their striking voltage, due to the use of krypton instead of argon.

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.


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Jul 18, 2019 at 11:28 PM Author: Silverliner
Yeah, I have tested some 34w lamps on preheat, they go crazy with all those plasma arcs at start up! Westinghouse and later Philips used to make a special 34w lamp for preheat ballasts, without the electrically conductive coating. I have one of these myself.

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

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ace100w120v
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Jul 25, 2019 at 06:54 PM Author: ace100w120v
Would the "preheat" 34w have trouble on RS?
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