Posted by vaughn on March 27, 2009, 11:38 am
> I still have 2 of the old "circline" CFs floating around that are
> over 20 years old. Don't fit much, but they've seen lamp duty and for
> a while one was in the furnace room/shop ceiling fixture.
Those circline lamp adapters were the original CFLs. We started using
them at least 40 years ago at our house. Back then, they had significant
problems with reduced output with age. I believe you can still buy them.
We have one still in use in our laundry where ceiling height is an issue.
Vaughn
Posted by clare on March 23, 2009, 4:03 pm
On Sun, 22 Mar 2009 20:13:03 -0700 (PDT), Frogwatch
>>
>>
>>
>> > Flicker in fluorescents indicates there is some small leakage current
>> > with something in the order of 100V behind it, getting into the circuit
>> > beyond the switch somehow.
>> > Tim
>>
>> A lighted switch will do that, the neon lamp is across the switch
>> contacts.
>I have roughly 20 CFL in my home and they do not perform anywhere near
>as well as advertised and my experience goes back as far as CFL do.
>They simply do not give out as much light as a comparable
>incandascent. They do not last nearly as long as advertised and
>often, very often fail much sooner. I have bought some cfl
>floodlights where 3 out of 4 in a package were bad. I find that they
>DO NOT SAVE MONEY. However, I use them because on average, they last
>about 4X as long as incandascents. Thus they are basically an
>expensive convenience for me.
Cheap chinese CRAP - and it is virtually impossible to find anything
else.
Posted by Tim Jackson on March 23, 2009, 10:52 am
Jim Wilkins wrote:
>> Flicker in fluorescents indicates there is some small leakage current
>> with something in the order of 100V behind it, getting into the circuit
>> beyond the switch somehow.
>> Tim
>
> A lighted switch will do that, the neon lamp is across the switch
> contacts.
>
>
I shouldn't be! That will mean the switch is only lighted when off, and
if the lamp is removed the neon will go out and the socket become live.
I'm sure that configuration would be illegal under European rules,
although I accept some may exist in less advanced countries. Either way
it still falls into the category of "unsafe and needs attention".
What would do it legally is a dimmer switch or a day-night photoswitch:
you have to buy purpose built CFLs for use with dimmer switches.
Tim
Posted by clare on March 23, 2009, 4:05 pm
On Mon, 23 Mar 2009 10:52:36 +0000, Tim Jackson
>Jim Wilkins wrote:
>>> Flicker in fluorescents indicates there is some small leakage current
>>> with something in the order of 100V behind it, getting into the circuit
>>> beyond the switch somehow.
>>> Tim
>>
>> A lighted switch will do that, the neon lamp is across the switch
>> contacts.
>>
>>
>I shouldn't be! That will mean the switch is only lighted when off, and
>if the lamp is removed the neon will go out and the socket become live.
>I'm sure that configuration would be illegal under European rules,
>although I accept some may exist in less advanced countries. Either way
>it still falls into the category of "unsafe and needs attention".
>What would do it legally is a dimmer switch or a day-night photoswitch:
>you have to buy purpose built CFLs for use with dimmer switches.
>Tim
If it is "live" when off due to power going through the Neon, you are
going to be hard pressed to detect the "liveness" by touch. NE2 bulb
draws 1/4 watt. That's 2 ma current.
Posted by Tim Jackson on March 24, 2009, 9:14 am
clare@snyder.on.ca wrote:
> On Mon, 23 Mar 2009 10:52:36 +0000, Tim Jackson
>
>> Jim Wilkins wrote:
>>>> Flicker in fluorescents indicates there is some small leakage current
>>>> with something in the order of 100V behind it, getting into the circuit
>>>> beyond the switch somehow.
>>>> Tim
>>> A lighted switch will do that, the neon lamp is across the switch
>>> contacts.
>>>
>>>
>> I shouldn't be! That will mean the switch is only lighted when off, and
>> if the lamp is removed the neon will go out and the socket become live.
>> I'm sure that configuration would be illegal under European rules,
>> although I accept some may exist in less advanced countries. Either way
>> it still falls into the category of "unsafe and needs attention".
>>
>> What would do it legally is a dimmer switch or a day-night photoswitch:
>> you have to buy purpose built CFLs for use with dimmer switches.
>>
>>
>> Tim
> If it is "live" when off due to power going through the Neon, you are
> going to be hard pressed to detect the "liveness" by touch. NE2 bulb
> draws 1/4 watt. That's 2 ma current.
That is sufficient for many people. You can stick *your* fingers in if
you want to. I'm not saying that current would kill, although it has
been reported to cause heart fibrillation, but falling off the ladder might.
Tim
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> over 20 years old. Don't fit much, but they've seen lamp duty and for
> a while one was in the furnace room/shop ceiling fixture.