What gauge wire is Christmas lights?

Asked By: Bihotz Wichkowsk | Last Updated: 6th May, 2020
Category: automotive auto parts
4.6/5 (1,178 Views . 32 Votes)
The lower the gauge, the thicker the wire.
Mini lights use 22 gauge wire. C7s and C9s generally use 18 gauge wire. Specialty bulbs have a large base that requires them to be on 12 gauge wire.

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Similarly, can I use 18 gauge wire for lights?

The 18-gauge wire inside a lamp cord is rated for a maximum current draw of about 5 amps. That's more than enough for a typical 120-volt lightbulb -- or even several of them. If the same bulb runs on 12-volt power, however, you should upgrade the cord to 16- or even 14-gauge to avoid voltage drops and dim lights.

Subsequently, question is, how many Christmas lights can be on a 15 amp circuit? It tells you how many lights and other devices the circuit can handle without tripping its circuit breaker. The rule of thumb is not to load a circuit over 80 percent, meaning a 20-amp circuit can safely handle 16 amps, and a 15-amp circuit can safely handle 12 amps.

Herein, what's the difference between SPT 1 and SPT 2 wire?

The difference between SPT-1 and SPT-2 wire is the thickness of the insulation surrounding the copper wire. SPT-1 wire has a thinner insulation than SPT-2. 18/2, SPT-1 wire has an insulation thickness of . 030″ and 18/2, SPT-2 has insulation that is .

How many Christmas lights can you have on a 20 amp circuit?

A 15-amp circuit can handle 1800 watts (15 amps x 120 volts). 20-amp circuit: Max 1,920 watts (80% of 2,400 is 1,920). A 20-amp circuit can handle 2,400 watts (20 amps x 120 volts).

39 Related Question Answers Found

What gauge wire should I use?

The minimum wire size for a 30-amp, 240-volt circuit is 10-gauge, but to prevent poor performance because of voltage drop, you should consider upgrading to 8-gauge if the outlet is far from the panel. For a 50-amp circuit, you need a 6-gauge wire at a minimum.

Can you mix 12 gauge and 14 gauge wire?

mixing 14-gauge NM and 12-gauge. both 14 and 12 gauge will be protected by a 15A breaker. Code states that 14Ga will be protected by an overcurrent device of not more than 15A and 12GA by 20A. 14 and 12 are both ok behind a 15amp breaker, but you must use one or the other and not both.

How many watts can 18 AWG handle?

Types of Cord Gauge Size Range Ampacity of Current-Carrying Conductors (amperes)
0 - 50 ft. (0 - 15.2 m)
SJT - Service Junior Thermoplastic SJTOW - Service Junior Thermoplastic Oil Resistant Weather-resistant 18 AWG 10 Amps 7 Amps
16 AWG 13 Amps 10 Amps
14 AWG 18 Amps 15 Amps

How many watts can 12 gauge wire handle?


Basic wire sizing guide for US 120 and 240 volts
Gauge Amps Watts
#14 12 1440
#12 16 1920
#10 24 2880
#8 32 3840

What is 14 gauge wire used for?

14-gauge wire is the smallest allowed for the permanent wiring of a circuit. It is rated as able to carry up to 15 amps of current. 12-gauge wire is the next size larger and is allowed to carry up to 20 amps.

Can I use 12 gauge wire for lights?

Yes, it is okay to use 12-2 cable to supply lighting fixtures. The other answer indicates that it even with 12-2 you have to use a 15A breaker for lighting circuits which is not strictly correct. If the entire circuit is 12AWG (other than fixture wires), then a 20A breaker may be used.

Can I use 2.5 mm cable for lighting?

You can use 2.5 mm² cable of course. In large buildings sometimes 4 or 6 mm² cable is used on the feeder runs, and near the light fittings the cables are branched off in J-boxes to 1.5 mm² to go to the light fittings, to compensate for voltage drop. These light circuits are often controlled through contactors.

What does 18 gauge wire mean?

Wire gauge is a measurement of wire diameter. This determines the amount of electric current a wire can safely carry, as well as its electrical resistance and weight.

What type of wire is used for LED lights?


What wire should I use? For single color strips, you only need 2 conductor wire, and for RGB strips, you need 4 conductor wire. We recommend using stranded copper wire 10-22 gauge. You said that the lights are dimmable.

What is a SPT?

The standard penetration test (SPT) is an in-situ dynamic penetration test designed to provide information on the geotechnical engineering properties of soil.

What is 22 gauge wire used for?

In general, thicker wire can carry more current. Here at SparkFun, we typically use 22 AWG wire for prototyping and breadboarding. When using a breadboard or PCB, solid core is perfect because it fits nicely into the holes.

What kind of wire do you use for a chandelier?

3 Answers. 18g stranded wire is quite common on arms 14g stranded is often used to join the 18g arm strands, and to tie into the ceiling. This applies to North America and normal chandeliers with relatively low (<50 each) wattage bulbs. If you're in the US, NEC likely applies.

What does SPT wire stand for?


SPT Lamp Cord. SPT Lamp Cord. SPT Lamp Cord is part of Allied Wire & Cable's line of Portable Cord. Meant for household appliances and other light-duty applications. SPT Lamp Cord can also be called a lamp cord or lamp cable because the two-conductor construction is easily recognizable as the cord used in lamp wiring.

What is SJT cable?

Type SJT is designed for use with heavy tools, equipment, portable lights, and power extensions. Type SVT is commonly used in small tools and appliances such as vacuum cleaners, food processors, and office equipment. Both SJT and SVT are rated to 60°C and 300V, and both are oil, water, alkali, and ozone resistant.

What happens if you connect too many Christmas lights?

Because light strings have a maximum wattage capacity, which is why many string lights come with a little fuse just in case you connect too many together at once. The fuse is designed to blow so you don't overload and damage your Christmas lights. This happens when your wattage exceeds the amp capacity of the circuit.