You more than likely want to have actually one move that when you flick it, all the lamp come on. You want to arrive home and have one switch irradiate the life room and also hallway. Is over there a way to do this, to have on multiple lamp being controlled by one switch?

The prize is yes; one switch deserve to turn on many lights. You can use two means to make her switch control multiple lights. The most common method is come daisy-chain the irradiate fixtures v connecting them with each other and hooking the first fixture to the switch.

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The second means to have all your lights managed by one move is v connecting them straight to the move in a configuration referred to as “home run.” It’s easy to disconnect the fixtures girlfriend no much longer need using the “home run” method.

In order to figure out how numerous lights have the right to be regulated by one switch, there are a number of things you have to know.

The basics of light switch wiring

There is no border to the variety of lights top top a circuit. The load of the fixtures is what determines how many lights a circuit deserve to accommodate. A traditional 15A circuit can have as much as 1400W of lighting loads associated to it. A 1400 watt lighting load deserve to accommodate one 1400W fixture or fourteen 100W fixtures.


Before you go ahead and also connect multiple cables to one switch, you have to know how to fix one cable. A typical 120-volt home circuit has two conducting wires and also a ground. Among the conducting wires is black, and it’s the one the transfers the power from the power resource to the load.

The various other conducting wire is white. The white wire is the return wire that transfers the load earlier to the strength source, perfect the circuit. The terminals that a switch have actually only black color wires as the switch interrupts the circuit’s hot leg. The terminals room brass.

The black color wire from the power resource is linked to among the brass terminals well-known as the line terminal. You climate connect another black cable that’s going heading come the irradiate fixture, come the fill terminal. V the black wires connected, you’re left v two white cables.

The white wires join the return course through which the fill bypasses the switch. You sign up with the white cables through twisting their exposed ends then screwing a wire cap on them. Before doing any type of wiring, make sure you rotate off the circuit breaker to avoid electrocution. Also, prior to touching the wires, use a voltage tester.

Lighting fixtures

Daisy – Chain light Fixtures

Daisy-chaining is different from wiring lamp in a series. Lights wired in a series go out as soon as one of castle fails. In daisy-chaining, parallel wiring is used to solve light fixtures. Standard electrical color-coding is also used, do it easy to usage the daisy-chaining method.

If what you are adding is a single installation, you need an extra cable the is compatible v your fixture. The is most likely that you will certainly run the wire v the attic. The only thing you’ll need to do is include the black color cables to sign up with the various other two black color wires and also repeat the same procedure with the ground and white wires.

There might arise a need for larger wires caps due to the fact that the number of cables in each collection is enhancing from 2 to three. The procedure the connecting another fixture come the one that you already included is comparable to the of including a solitary fixture the first time.

Now that you understand the procedure of adding light fixtures to a switch, you can keep ~ above adding more fixtures until you reach the break limit of the circuit’s existing draw.

Home-run lighting Fixture

The factors for feeding wires from numerous light bulbs to one move are mainly two. The an initial reason is convenience. You want the switch the is easiest to accessibility to manage multiple lights. The other reason is that the wiring is not permanent, and also you desire an easy way to disconnect the brand-new light once the need arises.

When utilizing the home-run irradiate fixture to have actually one switch operate multiple lights, the outgoing hot cable is associated to the switch’s pack terminal. The best means to make this connection is by utilizing a pigtail.

The pigtail method means you use a 6-inch black color spare wire to twist all the black color wires with each other that are connected to the fixtures. Once you twist the black color wires together, onto the separation joint, screw a wire cap.

Use the same procedure to connect the ground cables come the floor terminals. As for the white wires, a pigtail is no necessary. The just thing you do is twist them completely then cap them. The home-run wiring can end up being cumbersome when more than two lights are associated to a single switch. Girlfriend may additionally need a bigger electrical box to organize all the cables.

Now that we have looked at the ways of wiring more than one light to a solitary switch, girlfriend are most likely wondering, how numerous lights have the right to be ~ above one switch relying on the bulbs kind of lighting used.

CFL bulbs v LED bulbs

Each LED or CFL bulb normally produces the same amount the light as a 60W incandescent pear while the current it paint, etc is 10 watts or less. Therefore, the present drawn is 1/12 amp. A 15-amp circuit can, therefore, regulate 180 or more LED or CFL bulbs.

Recessed irradiate fixtures

Recessed lights administer a room through ambient light that is attractive. Recessed lights are fixed behind a ceiling, and in order because that a room come be fine lit, girlfriend need an ext than one fixture. The number of lights the one switch deserve to accommodate depends on a variety of factors.

These determinants include the room shape and dimensions, canister width, and also bulb wattage. The number of lights you can include on a circuit is also determined by the breaker rating.

Spacing of lights

Proper spacing the recessed light bulbs results in equal illumination the each component of the floor. Because each irradiate bulb provides a cone the light, the ideal setup should permit the cones to overlap. For the light cones come overlap, a couple of factors need to be observed.

These factors include the height of the ceiling, bulb intensity, and also diameter of the fixture’s opening. The general preeminence is that you can divide the ceiling’s height by two and use the number you gain to space the irradiate bulbs. Because that example, a room whose height is 8 feet, the standard spacing will be 4 feet.

The direction of irradiate from recessed light bulbs

Improper use of recessed bulbs or overusing them outcomes in the negative quality of the irradiate they produce. As soon as you heat the lights in a row, a sightline sample is created, and also this effect isn’t appeal to the eyes.

The best pattern to place recessed irradiate is an irregular pattern. Protect against spacing the lights too close to each various other as you might end up with too lot illumination. However, if the fixtures you room using space directional, you may need to space them in closer proximity contrasted to omnidirectional lamp to acquire a an excellent lighting result in the room.

Breaker limitations

The main limitation ~ above the variety of recessed lights the a single switch can regulate is the rating of the circuit breaker controlling the circuit. Every incandescent or halogen 60-watt bulb draws approximately 1/2 amp, and therefore, standard lighting through a 15amp breaker can regulate 30 lights.

When it concerns LED and CFL bulbs used in recessed fixtures, we have actually mentioned that they develop light that is comparable to a 60W incandescence bulb. The inrush present for LED lamp is commonly 20 amps for 240VAC. Therefore, a 15amp circuit can safely accommodate 180 or an ext fixtures making use of LED or CFL bulbs.

What we see as “normal bulbs” room usually 60W incandescent bulbs. A circuit with a currency of 120 volts and 15ampere offers 1800 watts. This method that the 15ampere switch can accommodate a preferably of 30 glow bulbs.

The way we have actually reached the variety of bulbs is easy.

Take 120 volts * 15 amperes = 1800 watts.1800 watts / 60 watts = 30 bulbs. (The complete watts divided by the watt in a solitary bulb)

We have actually seen the the number of lights that one switch can accommodate can be anything from 1 come 180. The determinants that will determine how numerous lights deserve to be flicked on and off by one switch include breaker constraints of the circuit and also the variety of voltages a solitary switch deserve to accommodate.


The inquiry of how numerous lights can be ~ above one move can additionally be answer by looking at the type of pear you setup on using. The number of incandescent lights the a single switch can manage is different contrasted to the variety of LED or CFL bulbs.

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The way you execute your wiring the the extra lights determines exactly how many extr lights a single switch will control.