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I have a 12v 5.0a AC to DC power converter. I want to solder the ACN(blue) and ACL(brown) wires to an outlet plug I cut that has copper wire (black and white).

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I hope I am on the right path here. If I am how do I know which ends to solder together?

I see in this diagram that Black/Brown is live, and White/Blue is netural. So does that mean I can wire Brown to Black and Blue to White?

enter image description here

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    \$\begingroup\$ If its a polarized connector your should check continuity especially with a connector from wherever that you just cut. Neutral is usually white in us but it varies in other parts of the world. You should really buy a pigtail with an earth ground \$\endgroup\$ – crasic Jan 21 '16 at 7:45
  • \$\begingroup\$ Your diagram shows that your PSUs require an earth (ground). Don't leave this out. \$\endgroup\$ – nekomatic Jan 21 '16 at 13:11
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Normally wall connectors are not polarized: you can plug them either way. So which wire you solder to which shouldn't be too important.

Your LED PSU will most likely have a bridge rectifier built in, so it can work with live voltage on any wire. If you are unsure, look at the datasheet.

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  • \$\begingroup\$ bridge rectifier has nothing to do with AC polarity. \$\endgroup\$ – Jasen Jan 21 '16 at 8:20
  • \$\begingroup\$ @Jasen why not? It is a simplification, but the rectifier does exactly what the OP wants to know: rectifying AC, regardless of polarity. \$\endgroup\$ – jwsc Jan 21 '16 at 8:25
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    \$\begingroup\$ live / neutral is a safety issue not a polarity issue, rectifying AC, is immaterial. \$\endgroup\$ – Jasen Jan 21 '16 at 8:30
  • \$\begingroup\$ @Jasen: Oh, I may used the wrong words, now I think Iunderstand what you mean. But the cable the OP showed in the picture there is no PE wire. \$\endgroup\$ – jwsc Jan 21 '16 at 8:34
  • \$\begingroup\$ yeah, but the bridge rectifier isn't what makes it work, most AC appliances will work fine with either line polarity, some will even be safe either way. \$\endgroup\$ – Jasen Jan 21 '16 at 8:41
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It will work either way because they are not polarized (as jvsc said) but there is a difference and a correct way to connect them. One is hot and the other is neutral. The neutral wire (marked ACN) should go to the wider blade/prong and the hot wire (marked ACL) should go to the narrower blade.

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