LED lighting question

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Anonymous
LED lighting question 2017-04-07 02:36:23 Post No. 1157411
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LED lighting question Anonymous 2017-04-07 02:36:23 Post No. 1157411 [Report]

I am a GC super. I have some halo ml56 lights left over from a recent project. I wanted to install them in my kitchen in place of my existing incandescent cans. I have the screw in pigtails, so it should be a simple swap, but the lights will not power up. I tried several different units (in case of a faulty one) and tried in different known outlets. I verified voltage at the pigtail. Still no lights. Could all the ml56 lights I have be bad? Seems unlikely. Or is there a secret?

Anonymous 2017-04-07 05:47:46 Post No.1157476
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Anonymous 2017-04-07 05:47:46 Post No.1157476 [Report]

no sparkys around?

Anonymous 2017-04-07 06:06:17 Post No.1157482
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Anonymous 2017-04-07 06:06:17 Post No.1157482 [Report]

>>1157476
Yes but I don't use Halo. When you say verified voltage at the pigtail do you mean at the orange connector? Some of those adapters you have to screw in very tight to get connection.

Anonymous 2017-04-07 06:13:07 Post No.1157484
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Anonymous 2017-04-07 06:13:07 Post No.1157484 [Report]

>>1157482
>When you say verified voltage at the pigtail do you mean at the orange connector?

yes, checked voltage at the orange connector with a meter.

Anonymous 2017-04-07 06:15:34 Post No.1157487
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Anonymous 2017-04-07 06:15:34 Post No.1157487 [Report]

>>1157484
What was the voltage, is it a digital or analog meter and is this on a dimmer?

Anonymous 2017-04-07 06:24:44 Post No.1157489
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Anonymous 2017-04-07 06:24:44 Post No.1157489 [Report]

>>1157487
no dimmer.

123 volts, digital meter

Anonymous 2017-04-07 06:38:17 Post No.1157492
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Anonymous 2017-04-07 06:38:17 Post No.1157492 [Report]

>>1157489
I looked over the spec sheet and they seem to be standard replacements that don't require a smart switch. Since everything checks out only thing I can think of would be to check for reverse polarity. I've seen China led fixtures that wouldn't light if the polarity is reversed.

Anonymous 2017-04-07 06:42:16 Post No.1157493
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Anonymous 2017-04-07 06:42:16 Post No.1157493 [Report]

>>1157492
polarity on an ac circuit?
are you pulling my leg?
I'll flip it and try...

Anonymous 2017-04-07 06:49:49 Post No.1157498
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Anonymous 2017-04-07 06:49:49 Post No.1157498 [Report]

>>1157493
In mains polarity refers to hot/neutral. Some devices won't work if its reversed. Gas furnaces, some power adapters, some dishwashers and washing machines.

Anonymous 2017-04-07 07:15:20 Post No.1157509
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Anonymous 2017-04-07 07:15:20 Post No.1157509 [Report]

tried reversing polarity.. no lights

maybe there is a reason these were left over. I am shocked that we had that many bad units.

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