Can you use 18 gauge wire for LED lights?

Most people would likely recommend using a solid core 18-gauge wire for your LED lights. The cost difference between this wire size and a much smaller cable is negligible, and 18-gauge is about as big as you can go if you would like your wires to fit into most holders or terminals.

Can I use 18 gauge wire for lighting?





It is very common for factory fixture wires to be 18 AWG or even smaller. Perfectly fine, because they are part of a listed and labelled assembly. If you have to add your own wires, they need to be 14 or 12 AWG, depending on the breaker protecting the circuit. It will work, but may not meet code requirements.

How many amps can a 18 gauge wire hold?

16 Amps

A conservative estimate for several feet of 18 gauge wire is 16 Amps. If you have only 12 gauge wire, the 18 gauge wire can handle more than 16 Amps.

Can I use 16 gauge wire for lighting?

Choosing Electrical Wire Size





16-gauge are used for light-duty extension cords supporting 13 amps. 14-gauge are usedfor light fixtures, lamps, lighting circuits with 15 amps. 12-gauge are used in kitchen, bathroom, outdoor receptacles, and 120-volt air conditioners supporting 20 amps.

How many watts can 18 gauge wire handle?

18-gauge automotive wire can handle anywhere between 3 and 15 amps, depending on the distance (12.2 ft to 2.4 ft). The shorter the wire, the more current it can handle.

What gauge wire for LED can lights?

Here’s some basic facts you should consider when installing recessed lights: Most lighting circuits in homes are either 15 or 20 amps. 15 amp circuits are the most common. 20 amp circuits require 12 gauge wire; 15 amps circuits allow for less expensive 14 gauge wire.

Can you use 18 gauge wire for 120v?

18 gauge wire is safe to use at low currents. It would be recommended to fuse it though. BUT, doorbell wire is not a safe option at 120 volts. Most likely it is not intended for use above 48 volts.

Can you connect 18 gauge wire to 16 gauge?



Yes the 16-gauge will work just fine. Make sure your connections are well insulated.

Can you connect 18 gauge wire to 12 gauge wire?

NO don’t ever mix AWG Wire gauges they are different for a reason and the main reason is amperage. Sure it will work but it’s 100% wrong and the #18 gauge wire becomes a fusable link and potential fire hazard. It would be easier to use the #18 wire to pull #12 wire and make it right.

What size wire do I need for ceiling lights?

The #14 gauge wire or 14/2 and 14/3 Type-NM is most commonly used for home lighting circuits because most switches for homes are rated for 15 amps therefore using a larger size would not be compatible with these devices and it would not be as easy to make the connections when using a larger wire size.

What gauge wire is best for low voltage lighting?



We recommend 12-gauge or 10-gauge wire for long distances. This is to prevent voltage drop. The further you get from the transformer and its power supply, the more resistance occurs in the circuit which causes the voltage to decrease.

What happens if wire gauge is too big?

using larger wire will not hurt anything or cause any overload. The larger wire will cost more, the pathway or where it has to fit, and the physical size of the connecting means (ie. the size of terminal or clamp it has to fit in), will all be determining factors in just how big is too big.

Can you use smaller gauge wire?

The larger diameter of the bigger wire offers more area for electrons to move through the circuit. For this reason, smaller gauge wire is rated for lower amperage (electric current) limits than larger gauge wire. The smallest size of common household wire can carry 15 amps of current.

Is lower gauge wire better?

A wire with a smaller gauge (larger diameter) can carry more power than one with a larger gauge. In general, a lower AWG number is better than higher AWG.

Does thickness of wire affect current?



The resistance of a wire is also dependent on it’s cross-sectional area (thickness as you call it). Larger the cross-sectional area, lower is the resistance and larger the current that can be passed through.

What is the thinnest electrical wire?

Scientists Have Created The Thinnest Possible Electrical Wire, Measuring Just 3 Atoms Wide. Scientists have developed the thinnest possible electrical wires, using tiny bits of diamonds called diamondoids to construct a wire just three atoms wide.

Do shorter wires have more resistance?

The resistance of a long wire is greater than the resistance of a short wire because electrons collide with more ions as they pass through. The relationship between resistance and wire length is proportional .

What if instead of using thicker extension wire you replace it with thinner wire what would be the effect on the circuit?

The thin wire will conduct electricity, but there is more electrical resistance. The thicker wire is like the four lane highway. There’s a lot less electrical resistance, and as a result, that light bulb burns brighter because more electricity can reach it.

Why are thick wires used to carry large currents?



2) Why are thick wires rather than thin wires usually used to carry large currents? Ans. Thick wires have less resistance and so they will heat up less when a large current is passed through them. The resistance of a wire is proportional to its length and inversely proportional to its cross-sectional area.

Can a wire be too thick?

There is no such thing as a wire that is too thick. The only way a wire is too thick is if it’s too big for your space (the spaces for the wire). Thicker wires provide less resistance, which entails that more electricity can pass through them.