I bought a LED ceiling light with the following specifications:

  • Wattage: 15W
  • Voltage: 100-240V AC
  • Current: 73mA

The product doesn't come with cables, and the instructions say "use a cable that meets safety regulation".


Is it safe (according to regulation) to use a 18AWG stranded wire with the following specifications to connect the lamp to the ceiling?

  • 18AWG wire (150 strands of 0.08mm tinned copper wire)
  • Nominal Voltage: 600V
  • Bear Current: 7.5A


According to this table of AWG wire sizes, the ampacity of an 18AWG wire is 10A (60C), and the fusing current is 83A (10s).

And here's the answer from the manufacturer (LePro UK):

Yes, it is safe to use an 18 gauge stranded wire.


  • 3
    Where are you on this planet? That sounds like an awfully fine stranded wire to be using for mains wiring... Jan 6, 2021 at 12:43
  • 1
    The lamp could/would break but the wires could still short out and burn red hot before your breaker tripped.
    – JACK
    Jan 6, 2021 at 13:15
  • 1
    Sorry about not naming my country before, but phrase "Where are you in this planet?" sounded a bit like a veiled criticism ("From which planet are you?") and I didn't think it was an actual question. But now I realize it is a relevant question; I live in the Netherlands, where the voltage is 230 volts and the frequency is 50 Hz.
    – Nelson
    Jan 8, 2021 at 6:08
  • 1
    @Nelson First, there is a huge difference between "Where are you on this planet" and "From which planet are you?" Second, please understand that everyone who responds to your question actually wants to help you, but there is a minimum level of information we need to do this. Just provide the requested information and instead of looking for reasons to feel insulted, look at it from the perspective of us trying to help.
    – tnknepp
    Jan 8, 2021 at 12:04
  • 1
    @Nelson Good to hear no feelings were hurt! I appreciate the issues with second languages (I picked up German a few years ago), that's part of the reason I mentioned the difference between the two sayings. I probably could have worded that better, but with character limits it's hard to do.
    – tnknepp
    Jan 8, 2021 at 20:47

1 Answer 1


I just installed 7 lights of an identical type. Here are my thoughts:

First 18ga wire is adequate. !8 AWG is normally considered adequate for 10 amps in lighting circuits. You should not bury that wire under anything, as it is designed for free air use. But for one fixture, drawing less than an Amp, it will not get warm.

Second, the connector on the light is firm, but designed for 14ga solid copper wire. Stranded wires may not have the requisite stiffness to properly insert into the connector, and there is the risk you could have a "hair" of wire separating from the strand, which could cause a problem (short).

They do not have a provision for ground wires, and since everything is plastic except the mounting bracket, I simply tied my ground to the metal mounting bracket.

Note for anyone else, to mount these lights in a box, I found it necessary to drill an additional hole in the mounting brackets. They appear to be designed for non-US markets, and while they will work fine, some things, such as hole spacing, are not ideal for mounting on common US boxes.

How are you planning on mounting this, and running the wire to it?

  • 1
    1. I was planning to place the lamp under the box, using no more than 15cm (6") of wire, and finish with two wago 221-412 clamp connectors. 2. Good point! Perhaps I should crimp insulated terminals?
    – Nelson
    Jan 6, 2021 at 14:26
  • 3
    In the US, what I would do is to use 14ga solid copper wire to attach to the light. If going to the box there was 18ga wire, then I would use a wire nut or a crimp to attach the 14ga solid copper wire segment. The other end of the short segment would be inserted into the lamp's crimp terminal. The issue is not the minimum wire gauge for safe connection for current flow, but rather the requirement for proper connection in the fixture.
    – mongo
    Jan 7, 2021 at 15:31

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