A long story, but I bought LED outdoor lights to replace my aging strings.
Shoulda looked at the colors. Is purple now a Xmas color? They use crinkley
bulbs, I'm guessing to make up for less brightness? In any event, I repaired
the old strings. They are parallel, so I just remove a socket when needed due
to squirrel damage and they work fine. Replaced a few bulbs. Bought a good
stock of spares for the future and am returning the LED string.
Brian C Kennedy
On Dec 5, 2010, at 1:36 PM, David Scheidt wrote:
> On Sun, Dec 5, 2010 at 3:37 PM, David C. <email@example.com> wrote:
>> Ok, I'll be the first to admit that I'm not up on Christmas lights and
>> decorations. B My primary response to the holidays, and Christmas in
>> particular, is to ignore them/it to the fullest extent possible. B I
>> bought Christmas lights in probably 25 years. B Given that, I was under
>> impression that:
>> 1. B Pretty much all Christmas lights these days are LED; and
>> 2. B Series wired Christmas lights went out sometime around the middle of
>> first Eisenhower administration. B Shunts? Seems like a solution looking
>> a problem.
> Heh. All LED lights are series wired. (Someone, somewhere, probably
> makes a very, very expensive set where that's not true. But it's true
> of anything you're going to get at a mass market store.) They've got
> between 20 and 40 diodes wired in series, plus a current limiting
> resistor. If there are more bulbs than that, it's because there are
> two (or more) strands wired in parallel. Some of the nicer ones
> apparently have a reverse voltage diode, but none of the ones I've
> taken apart have had one. They've got shunts, too. not because LEDs
> burn out, but because they get stepped on or hit with hammers.
> David Scheidt
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