US$19.97
US$19.97
0%OFF
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{{description}}Note: Those shipping costs are only estimates; the actual shipping cost will be shown on the order page.
QWhat does “does not distinguish between the positive wire and the negative wire” mean? Is this possible US code violation or safety hazard? Thank you, Sharon
AIt means you need to pay attention to the difference during installation, thank you.
good item. thenk you