On Sep 16, 11:56*am, "bubbas" wrote:
"Bob Engelhardt" wrote in message

...







First, & very importantly, LEDs are INHERENTLY DC devices. *You have a
string that uses 120v AC because there is a rectifier built into the
string, or each bulb has 2 LED's, in opposite orientation.

So, you need to determine which it is. *Here's how: get a DC supply of
more than 3.1v. *You can use 3 AA or AAA batteries, end to end, or a 6v DC
wall wart. *Connect a 100 ohm resistor in series with the supply. This
limits the current to 30 ma, so as to not burn out the LED.

Then connect the supply to the LED, both ways (both polarities). *If the
LED lights with both connections, there are 2 LEDs in your bulbs and
you'll need an AC supply. *If it only lights on one polarity, there *is
just 1 LED and you'll need a DC supply.

Report back with your findings and we'll go from there.

Ah, the walwart I initially tried wasn't plugged in completely so that's why
the LED's wouldn't light. *My findings are that each bulb has 1 LED as it
only lights the one way.

Looks like I should just be able to use a cheap walwart to power these if
I'm not mistaken. *Should I include the 100 ohm resistor to each LED?

Thanks,
Bud



Bob- Hide quoted text -

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Do you want just one bulb in each candle? Are these individual
candles, or are they the "8 candles in a row" of 4 ascending and 4
descending height?