i just bought an led driver. but it has two white wires for the mains. I was wondering which wire is live and neutral.
Electrical – live and neutral, led driver
electricalled
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Best Answer
It doesn't matter.
As AC current alternates, the only difference between the two input cables is which is connected to ground (in your switchboard and/or at the supply transformer).
The only case where they need to be differentiated is when switching - you should not switch neutral, except in very few cases where you also switch phase.