I tossed all of my incandescent holiday lights years ago, never sorry to see
them go.
I have not had a single failure in the LED strings.
Gary
> On Dec 4, 2015, at 9:51 AM, James Boswell <jboswell@nrao.edu> wrote:
>
> On 12/3/2015 9:18 PM, Kim Elmore wrote:
>> This is way off topic and not radio related, but there are some danged
>> smart people that participate on the reflector, so here goes...
>>
>> It's the holidays and we've put up Christmas lights (mostly incandescent
>> series strings) and I'm seeing some very weird affects when I try
>> replacement bulbs. Specifically, when I plug in a replacement bulb of
>> ostensibly the correct voltage, it flashes like a strobe and is
>> immediately burned out. I tried some higher voltage bulbs, up top 12 V
>> and the same thing happens! All I can think of is that the cold
>> resistance of the filament is much higher in the replacements than in
>> all the other bulbs so that far more voltage appears across the new bulb
>> than the others and so the filament vaporizes. Is this what's going on?
>> It's very frustrating, to say the least...
>>
>> 73 & MX,
>>
>> Kim N5OP
> Kim,
> Have you tried to replace the bulb, then apply power? Something to
> consider, the Chinese Christmas lights have no standardization, just because
> the lamp base matches, the working voltage can be different.
> It has been my experience, as a rule the cheap Christmas light strings
> either work or not, and changing the light bulbs have not corrected the
> problem as the socket is the fault. In the past I have carefully stored a
> strings of lights and the next year, part or the entire string fails to work.
> I ohm-out each light bulb, yet the string fails to light.
> This weekend I will try to set-up my Christmas lights and I hope they
> work. If I buy new lights, think I will try the LED lights and see if they
> last better. I hope this helps you out.
>
> Take Care, Merry Christmas, 73'S KA5SIW
>
>
> > James B. Boswell JBoswell@NRAO.edu
> > VLA Engineering Services Office: 575 835-7427
> > National Radio Astronomy Observatory C.Phone 505 412-3732
> > Post Office Box 0
> > 1003 Lopezville Road
> > Socorro, New Mexico 87801
>
>
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