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Why To Never Touch A Bulb With Your Hand

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Old 01-06-02 | 11:40 AM
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Red face Why To Never Touch A Bulb With Your Hand

I guess when i was installing them i got some oil from my finger maybe... but take a look at this!!


bye the way, my harness is fine no problems.

also, it may look like two bulbs but its the same one from two different angles.. i dont think its that Opti-Blue bulbs suck.. just that u have to be super careful when u install them.. the other 3 bulbs are stil perfectly fine
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Old 01-06-02 | 12:43 PM
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The dreaded bulbing of the bulbs.



Glad nothing else was damaged. You should have known to use some latex gloves.
Old 01-06-02 | 01:14 PM
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Default DRL

low voltage circuit did this to your bulbs. On my 2001 AWD RX with about 10k miles the glass encapulation of my factory originals looked exactly like your pictures. Never touched except at the factory.

I understand that this bubbling and soot covered interior results from running halogen gas bulbs at voltages significantly below their design voltage. Notified Lexus "HELPS" who didn't seem to care and sent me to the dealer, who REALLY didn't care. I think the only response I got from the Bellevue service manager was "huh, so why are you tellling me this?" when I took one of the "bubbled" and sooty bulbs in to give him.

So I went home and installed new bulbs and disconnected the DRL resister under the main battery. The DRL bulbs in my GS are already showing the same effects but I haven't yet done anything about it yet.
Old 01-06-02 | 01:59 PM
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I have never seen bulbs deform like that.
Old 01-06-02 | 02:37 PM
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I've had a few myself.
Old 01-06-02 | 04:15 PM
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hm.... these were the fog lights i dont know why they bubled and not my other bulbs which are running on DRL... also they are the same brand bulb!
Old 01-07-02 | 06:21 AM
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Default Re: DRL

Originally posted by wwest
I understand that this bubbling and soot covered interior results from running halogen gas bulbs at voltages significantly below their design voltage.
Both my high beam bulbs have kind of a tannish rust appearance to them, is this the soot you are talking about?
Old 01-07-02 | 11:38 AM
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Default YES.

Mumbles
Old 01-07-02 | 11:51 AM
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Default Re: YES.

Originally posted by willard west
Mumbles
Cool, thanks.
Old 01-07-02 | 06:16 PM
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Default Re: Why To Never Touch A Bulb With Your Hand

Originally posted by LexusRules
I guess when i was installing them i got some oil from my finger maybe... but take a look at this!!


bye the way, my harness is fine no problems.

also, it may look like two bulbs but its the same one from two different angles.. i dont think its that Opti-Blue bulbs suck.. just that u have to be super careful when u install them.. the other 3 bulbs are stil perfectly fine
Were you like eating pork rinds before you installed these or something?

Holy CRAPOLA, there must have been a ton of oil on each bulb for it to bubble like that....

Although I agree with Dexter that gloves would have been nice, perhaps a good start would have been for u to wash your hands...

sorry man...I'm finding this very funny...

LOFL....

Old 01-07-02 | 06:50 PM
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Hmmm, i've never seen a bulb do that before. Interesting. I have the soot on the tip of my DRL bulbs. Other than that they look and operate fine.

I don't understand why bulbs in a low voltage circuit would bubble like that. Shasha's bulbs were in the fog lights.

-Nick
Old 01-07-02 | 09:14 PM
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Default Bulbs, HOT

Incandesent bulb filaments increase their operating resistance substantially at rated voltage vs reduced voltage. So running at reduced voltage doesn't necesarily mean lower power, only less light output. And of course at rated voltage a higher percentage of the power is converted to visible light, not heat.

There is something about the halogen "regeneration cycle" not working at low voltage also which is why you end you with soot from the filament deposited on the interior of the bulb.
Old 06-25-03 | 01:10 PM
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If you read the package on reputable bulbs, they state to never touch the bulbs with your bare hands. Of course, most people don't read the package.

But anyway, I thought everybody knew that. You never touch bulbs with your hands. Always wear some latex gloves or something.

Ral
Old 06-25-03 | 01:38 PM
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Sasha! That's the weirdest thing I have ever seen!
I guess you know what that means my friend

Time for HID in the MR2!
Old 06-25-03 | 02:18 PM
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Yep...time to upgrade to 6000K HID.

Peter


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