They dont look or feel isolated, like ones inside a headphone cable

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15 points

The power supplies feeding these are typically .5A at 5v so they can’t draw more than ~2.5w. Is that really enough to generate sufficient heat to start a fire? Maybe if they are wrapped around something incredibly flammable?

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21 points

Is that really enough to generate sufficient heat to start a fire?

In case of a short circuit, yes, more than sufficient

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