Master switch wiring with two way switch (DPDT) demonstration
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- Опубликовано: 16 сен 2024
- This video helps to understand the concept of master wiring with two way switch. It is a best method to understand the wiring method.
proffessional wiring
Concept of wiring
Master wiring diagram,
warehouse wiring diagram,
How to perform Master wiring at home
How to use two way switch
Guys this is a basic conventional wiring diagram that i represented in a simple way, to understand easily. Here Blue wire as well as Red wire is LIVE wire. But i used blue wire, to distinguish master control wire from main LIVE wire
its a scam there a power line and a neutral line at the back of the board your a scammer
@@Saimpiernokamapupunta прежде чем писать такое, сделай сам и убедись
@@Saimpiernokamapupunta he actually has the power and ground on the front of the board where we can all see it including you
@Sine Tech Why have you put 2 master switches when the both do the same work
@@Ramy_Ramzprobably planned to be on both sídes of the room, why not? 🤷🏻♂️
For anyone wondering NO means normally open, whereas there isn't connection if action isn't taken, and NC means normally closed, which means that there is connection until an action is taken.
❤
Everyone is wondering, appreciate the explanation
Electrically speaking....Yes, your correct. However with women NO is NoT "Normally Open" to anything and NC loosely translates to "Normally Closed" but literally as "No Chance"🙄 Hope this clears up relationship communication? 😁😂
NO and NC are used whenever you have a switch thats spring loaded in one direction. What he's indicated here is either relays or momentary 2 position switches.
It's a lot easier if he connected the Blue to the Red Wire 😂
Remember your childhood, when you tried to hold the switch in the middle? That will come handy if the master switch is ON.
😂
ruclips.net/video/rxNojaEZpu8/видео.htmlsi=50LfVUOdtZ_hDo39
Exactly man... I dont get the point as to why they need two master switches. And how do i f-ing switch off my room when the master switch is on 🤬
@@sagarsoraisham5822you don’t that’s the point they all go on…
@@sagarsoraisham5822 the master switch is for the mother downstairs in the kitchen to wake all three children up at the same time 😅
If only the guys who did my hardwired smoke detector knew how to not crosswire a light switch
Residential electricians become masters once they learn how to wire a threeway switch
Wait they wired your fucking smoke detector to your light switch?
Sounds Like It May Be A Simple Fix... If The Electrician Didn't Run New Wire From The Panel Box They Probably Wired It From An Existing Switch Box... If You Can Identify The Smoke Detector Wire In Said Box All That Would Need To Be Done Is Safely " Turning Off Power " Removing That Wire From The Wire Nut ( Because It Was Wired To The Switch Leg ) Then Wire It The Other Existing Hot " Black " Wire In The Box Because That's The Line Side Which Is Constant Power... Once Turned Back On Your Detector Should Remain On While Your Light Switch Controls Only The Lights...
Sounds Simple But It Could Be Complicated If You Don't Know What Your Looking At...
Well duh, if your smoke detector is going off you want to be able to easily shut it off.
@@daveqqqq Perfect Sense 😂...
The schematic presentation is great!👍
Electrician here. What a fun way to show voltage backflow. 😉 👍
What do you mean?
nah it just voltage at parallel at best
Voltage doesn't flow.
Voltage drop
@@edisont.picard4112 let me just take a moment to complement your UN Sir. 👏
If you want true two way master switching, you need two two way switches with strappers between the L1/L2 terminals. This method in the video requires both master switches to be off to kill the circuit.
Came here to say this. People on internet are dumbdumb😅
The funniest part is that other dumbdumb believe this crap 🤷🏻♂️
I agree with you! Those master switching requires both master to be off
Oh shit
I was thinking this too. Or at least I think you're saying what I was thinking.
If both “Master” are switch on there will be fireworks… 🎉 I know it’s just an example but there will be someone who will copy and wire like this thinking it’s ok. 😅
A true master switch would disconnect all power from a circuit with no alternative means of supply that is why it is called a MASTER switch. What you have are override switch.
In our nation we have difference between Master switch and Main switch. Master switch Turn ON all lights which are connected to it, without considering whether any light ON of OFF at that instant. Similarly Turn OFF all light excluding the light which is in ON position. If any light be ON at particular area, no need to turn OFF that. To turn OFF all lights we use Main switch or DP
@@sinetech19 In the UK where I am from, the main or double pole switch at the source of the supply is a master switch, a switch that turns on lights regardless of state (on or off) is an override switch.
@@davidcoates4852afaik that's how most countries seem to handle it
This type of installation would be against code in the US. Parallel switches are illegal. They are required to be 3 or 4 way with travellers. Installations like this are hazardous.
@geoffh1 how so?
Thanks, now Im an electrician.
It's not for pro😂😂
Завораживающее зрелище😂 Минут ...дцать зависал, теперь хожу, глазами вращаю, музыка в голове🥴😁
Да, я тоже "втыкал" долго... Потом подумал: "Зачем это?". Сейчас при появлении систем "Умный дом" можно дублирующих выключателей для светильников повесить беспроводных сколько угодно
@@ДмитрийКлимов-ш2к или лампочки умные)
Тоже долго смотрел! Сохраню видео может где нибудь пригодится!
That's a pretty neat trick to take advantage of normally closed switches like that.
So... If 'master switch' is enabled- you are not able to turn off the light
To turn OFF any light which is in ON, we should manually turn OFF at that switch pannel
Ακριβώς κανένα υπνοδωμάτιο δεν μπορεί να σβήσει.. αυτά τα κυκλώματα δεν ξέρω αν τα χρησιμοποιούν σε φυλακές για σπιτια δεν είναι
Yes corect.if master is ON, light not off using 2 way switch
Hope you have hefty insurance; if my customer couldn't turn off or on as desires
@@sinetech19 in your video you dont show turning off individual switch if master is on is there some kind of switch like 3rd gear switch?
This is actually really good to know
thank you
What did you kesrn
Из схемы видно, что NO и NC это один провод, и не важно с какой клеммы ты подаешь питание.
That's the point, tho. If the 3 way switches are getting their power from the master switches, that empowers the masters to control. If the 3 ways are in NO mode, then they'll be opposite of whatever masters are in.
đỏ với xanh là một pha, đen là mát
Blue - Phase, Red - Phase, Black - Zero (0), It's much simpler Синий - Фаза, Красный - Фаза, Чёрный - Ноль (0), заземления тут Нет!
This is a very aesthetically pleasing demo
В схеме ошибка: Мастервыключатели 1 и 2 не могут выключить лампы, если они включены вторыми включателями. Мастервыключатели 1 и 2 так подключены, что в длинном коридоре бесполезны
Да они полностью схему не отключают если на 2ой линии хоть оди выключатель находится в положении С N0
Если честно я даже не представляю где такую схему применить
@@fried_nails как где? В Ютубе такая схема применима, для сбора комментов прекрасно работает. 👌
mast h bhai ji 🙏 or back side tune bhi mast h isko kis name se download kiya ja sakta hai bhai please tell me 🙏
@@НиязРустемов-р3цas a american thanks 😂 i’m glad y’all smart because i was thinking this was a decent rig im not good at electrical shit i can put black on black and red on red that’s about it
Теоретически вполне себе схема да согласен с ошибкой автора а если в этой схеме задействовать проходные выключатели
Very nice automation here i wish we did more of these curcuit types
As a freshman of Electrical Engineer, im fascinated to see this kind of educational yt shorts
Junior here, good luck 😅
It is made in a way that easy to understand❤❤
This looks very good for basic education. Gives kids a better visual idea than starting with schematics
Well done sir
The only prob is it's not wired correctly 😂
The 1st switch should be turning off at the end. When you flip a switch the light should switch positions.
@@justindamirgian5977 look at the first switch...
it is connecting the led to the blue wire... that's why it didn't turned off... In this context with that switch in that position .... Then the LED1 won't be affected by the master switches ...
So does the electric current pass thru the negative wire before it passes thru a positive? So the negative wire is the current cut off and on, positive wire let's current flow thru, and neutral wire is the control switch to make both work together?
@@justindamirgian5977 it's a demonstration 😂no one would use this in a practical application
Only problem with this circuit is if all three subswitches are in the UP("NO") position, the "master switches" have no effect on the system. But good overall diagram and simple circuit.
Not at all. It's a split feed loop. The blue wire is carrying the output from the master switches.
So in the normally open position, with a master switch on, the power is actually going through the blue wire, across the 2 pole switch through the no terminal, back to the source. Where as with the master switches off, the blue simply acts as a return line.
It's stupidly over complicated but it would in fact work.
I don't see how thats a problem if they're all switched to off in the first place.
Yeah although if the blue wire open circuit, it can be operated through master switches
It looks like the point is to be able to turn the lights on. The master switches might be better labeled as master on switches.
@@hamburbers a 10yo can explain this in minecraft these days, it's good to see the rest of people catching up I suppose.
The house my father built in 1969. Had two switches that were rotary two per station. You could control just about every light in the house. I still don’t know how they did it… but it was pretty cool. And nobody else had it. I never saw it in anyone else’s house. Also, the rocker switches were different too.
That is impressive👍. If he can make such a wiring on that time, he may be a legend in wiring✌
U mnie też w starym niemieckim sterowanie masą było bo dużo światła na schodach. Włączasz światło na górze i gasisz na górze albo na dole x))
@@MaydayChild
W starych kamienicach każda klatka schodowa tak miała zrobione.
Do takiego przełączania potrzebne są odpowiednie, trójzaciskowe przełączniki.
Proste rozwiązanie. Żadna magia.
Lip
@@eLJotJoteL tak jest u nas w piwnicach pod blokiem też zrobione światło. Tylko kradną prąd i masy brakuje już. Ku ścisłości, nie kradną z żarówek tylko z instalacji i robi się burdel
Great demo with Great music🔥
This would make sense if the 2 master switches were configured in a 3-way configuration with travelers between them.
Mas é isso que está ali, os mestres com 3 vias.
My scenario is guard posts/security posts in a commercial/military/prison building. You don’t want the convenience of being able to turn the master override off from everywhere, what you want is to be able to force everything on, even if the other guard post is overrun by terrorists or spies or inmates. That’s the kind of scenario where your normal usage is just standard local control - but when shit hits the fan you want to be able to light the place up like a Christmas tree. And having to go around afterwards to all the places and check all of them manually and turn them all off manually is completely an acceptable trade-off.
@@JasperJanssenAlso industry areas and factories, you might need to have lights on 24/7 (like we do at my workplace for example) and don't want someone to turn some lights off by accident or in a case of emergency you want to be able to turn all lights on/off instantly from one place - in these scenarios it's good to have this method of master switches
@@JasperJanssenthat's the one scenario when it makes perfect sense, didn't think of that. Thanks for expanding my knowledge :D
I love how this demonstrates how electrics work
Glad to know you like this🙂
Just recently had to do something for college about shift Registers and having a right shift based upon a clock input using the debounced switches and an SPDT switch to switch between Two modes on two separate chip to go through parallel and series modes.
This is very cool representation of the switches!
Discription sould read SPDT not DPDT.
Problem is, if either master switch is on, the room switches no longer change the output. So if you want to turn one light off, you have to turn off both master switches and run around turning the other lights back on
It's literally said NO and NC on the board.... 🤦🏻♂️
@@perchancethishandleiswens ?
@@perchancethishandleiswens idk what your comment means bro, I see that it says NO and NC on the board, but I can also just look at the wires. What I said is still true, unless these are hypothetical 3 position switches
Nice little demonstration 😊
This is hostel wiring connection😊
More like hostile. Wiring a switch that turns all the lights in the building on would not be good for customer retention in a place where people pay to sleep.
be a cool way to set up the “code” for a secret room, have to flip certain switches and have others off for the door to unlock and show itself that’d be dope then have it to where the switches automatically reset to all being off after the door is closed > re closing the specific circuit triggering something to do it
With master can be controlled only the rooms with lights off. When lights are on, master switches are out of service.
This is very basic design of master switch wiring for beginners only. By using latch relay, Master switch wiring can be enhanced such a way that you mentioned. Thank you
Very important in case of emergency in the dark turn on all the lights simultaneously
But the master switch stops you turning the light off again therfore doing its job
😂😂😂😂
Right
As an American, we would use two 3-way switches and three 4 way switches. Any location will turn the lights on or off. Good working model that shows what the travelers, switch legs and power legs are doing. We would also have a spliced white neutral (yours is black) in every switch. location.
This project has a problem. When the master switch is on you can't switch off the room and always is on.
Also can't master off all, so not a master.
Yes
To turn off all the light we should deactivate master switch from their respective room. Each master switch should install each room.
That is the point
this is why the EU is always left in the dark @@sinetech19
Wow 😲, Amazing very good job...
마스터스위치라는 개념을 보면, 2개가 연결됬을때만 작동되어야하는데, 예를들어 1번방만 켜있을때 마스터스위치로 끄도록 설계했어야함. 역으로 1번이 켜있는데 마스터로 on/off 하는것은 계속 1번이 켜있기때문에 비효율적
궁금해서 그런데요.. 지금 저 설계대로 마스터 스위치 1,2번 다 붙어있으면 과전류 되는건가요??
@@briteJK no. The current may run parallel having the same sum of current split 2 ways, but the load(the LED bulb) will draw the same current regardless of how many wires run to it. The amount of current is dictated by what is attached to the circuit divided by the voltage, not how many wires. For example if the three lights are using 1.0 amps and you were to have 4 override switches wired like shown, the current will be distributed between the parallel runs and all 4 would add up to equal 1.0 amps. If the 4 had different lengths and different wire sizes you may end up with the amperage distributed on each path like this 0.25a,0.20a,0.40,0.15. It would be distributed representative to the different resistances on how each circuit is run.
Beautiful demonstration
👌👌👌👌👌👌
🎉🎉🎉🎉🎉🎉🎉
This is really cool, I've never seen wiring done like this and never thought about wiring some rooms like this. With my kitchen, dining area and living room being one long room but 3 separate light switches, it would be very handy to have them wired to a master switch. If I ever cut open the walls I'm rewiring it like this!
Great explanation and diagram!
Thank you❤
This is due to ground being an alternative path for neutral. While hot exists at the top.
“That’s not up to code!”
~ Some keyboard commando
😁😁
Кратко: когда все комнаты выключены, главным ключом ты можешь включить в них свет. Зачем нужно - хер знает!
вообще то мудро задумано. Например для больших складов
Главных ключа два, наверно чтобы поставить в разных местах.
выключить их можно лишь этим же ключом, эта шняга нужна для строящегося на московии ГУЛАГа, где вертухай будет решать спать вам сегодня или нет
А если включат сразу два ключа? Идиотизм! А вы рты пораскрывали.
Так себе решение. Мастер выключатель должен все включить и выключить, а тут получается если локально включено, то мастером ты не сможешь выключить, и будешь выключать локально. Или в схему добавить общий рубильник, чтобы все выключить. Фигня вообщем.
.,very nice we learn about this..keep it up keep sharing Godbless
youtube.com/@asiftheinnovativeboy?si=fL2H4KN7FIenyuFc
A two way switch is supposed to turn off and on from both switches, you have two switches wired in parallel
You may be thinking of a three way switch. Not what this is.
@@professorg8383 You are right in North America but in the EU they are called two way. And yes I had to look that up.
@@KiloFeenix Well, maybe you call the function of a 3 way switch, a 2 way. I can understand that if it's just a different name for the same function. I've heard people ask that it's a 3 way switch, where's the third switch. You can operate it on and off from two locations, so "2 way" seems to be a reasonable name. But there are 3 modes of operation. Off, On from point A and On from point B. So 3 ways.
But that's not what the show. I would call what they demonstrate is a master override set up. They use a 2 position, (3 way) switch on each individual light, but the so called master switches are just single pole on-off switches and they confuse the issue with two master switches.
I don't see this as the circuit I think we are both referring to. What the masters do is override where the individual switches are set, and turn all the lights on regardless. It seems to me that it's a function with no practical purpose. It doesn't even make sense as an alternate emergency source. There's nothing wrong in how it is wired, but I see no practical purpose to override shutting off and of the individual room lights
@@professorg8383 If you can't see this sort coming in handy you've never worked in a theater or hockey rink.
You need to have people at floor level to be able to turn lights on and off easily 90% of the time to use the building, but there's that tiny fraction of time they'd really benefit from being locked on (or off, depending).
@@mootinator Well, indeed, I have never worked in a theater or a hockey rink! That said, I think you will find that in most big buildings like a theater or hockey rink, the lights are not going to be operated from individual switches like this.
In most cases there will be lighting contactors which operate lights in a group or multiple groups. So they won't be wired as shown here. There could be multiple locations where those contactors and light groups could be controlled from, but the circuits will be completely different.
Second, the circuit shown, does not override the lights to an off state. It only overrides to an on state. (The master switches can turn all lights on regardless of the local switch, but it can not turn them all off, unless the local switches are already off.)
So I stand by my statement that it is a very odd circuit which has no real practical use. It's not "wrong", in that it does work, but there is no sensible or logical common use for this arrangement. BTW, I should mention that I am completely familiar with large commercial lighting schemes. I am an Electrical Engineer with decades of experience in large industrial and commercial wiring, distribution, control and lighting practices.
The arrangement shown here would have to be some unique special purpose and it wouldn't be used in a commercial application, such as you suggest. Second, the idea of feeding lighting from 2 separate sources is contrary to "normal" code practices. It presents a potential electrocution hazard.
There are a few similar videos from India and Pakistan that call this "Hostel wiring". Of course in these countries they do many unsafe things and rarely use any kind of code standards. As it turns out, this channel is also from India.
I have no clue why they would use this scheme in hostels or hotels. They must do some weird things there. If the individual room lights were off, the master switch could turn them on remotely. I suppose they could flash the master on and off like some kind of signally system, however if the individual lights were already on, you wouldn't notice.
Using Google Translate and looking at comments on those channels, I see no mention of using this scheme in theaters or hockey rinks. (Do they even have hockey rinks there?) This kind of scheme could be used only on a small scale, not the kilowatts of lighting power in commercial applications.
Through the years, I have met a few Indian Electrical Engineers. They were competent, however practices in their home country are best described as "bizarre". In India, "stealing power", is a pretty common practice. Guys who call themselves "electricians", will climb up a pole and tap into the feeder wires and string it into a home. All completely illegal. It's not uncommon for one of these guys to get killed or badly burned because they really have no idea WTF they are doing. You can find pictures of power poles that look like they have been covered with spaghetti!! In a documentary I saw, it was suggested that as much as 60-70% of generated power is "stolen" by these practices.
Bottom line is that what is shown here is some third world wiring scheme. Technically, it does work, but the purpose for it defies logical reason. My advice is to not use the wiring scheme demonstrated here. Nicely done video though.
Поздрави от България
I dont know it was this simple, yet highly creative
That's why I like electronics.
Dude it's like Terraria wiring irl 🤯😂
If kept room,s light turn on
Master switch will never turn off
Master switches would be better named as "All Lights On". Good low tech way to light up the whole house if you suspect an intruder.
Exactly the pount of this circuit
Классная схема подключения 👍,респект автору и долгих лет жизни
The master switches are more of an on-override switch.
I'm so fascinated by stuff like this I’d end up playing with it…
I did the same wiring and my whole block lost power
Сделай линейно, на каждый отвод по автомату. Будет качественно и великолепно и понятно, чем химичить с раздельным переключением. Можно сделать умное переключение через контакторы, у нас на Руси это повсеместно, не знаю, как у вас) такие вот стандарты))) кто ещё цивилизация😂 ребят, стремитесь, мы поможем)
@@Ceferna sorry only English…
While you're teaching, put separate current limiting resistors on each LED so they have constant brightness.
No, don't. It's good to get people thinking about what else is going on and why.
Nice. But you should have independent serial resistor for each LED ;)
I have.. actually supply come via current limiting resister. i didn't show that resister.
@@sinetech19 there should be 3 resistors for 3 leds...
Good super. Electrical technician understanding
It is not necessary to break the neutral with a switch, it is dangerous
So those yellow connectors only let current flow in one direction ? What do they call those ?
@@braddenning1617 a diode
If you look, the black line is the neutral/negative. Positive is red/yellow/blue.
Master 1: I am the master! Master 2: No, you are not, I am the master! Now we fight to decide who is the true master.
The master switches do the same thing. If one is connected, the other does nothing.
And those are 3 way switches. The yellow is the pivot, or black screw on the switch.
How can I switch with the master 1 all on, and switch later with master 2 all off? You need to put a bridge in there (3 way switch)
Anyway I just figured, this should not be installed in a house like this. This is like Asien / last century style. But it’s a nice demonstration. 👍🏼
Appreciate it
Not gonna lie.. This looks like an ads of a puzzle game..
2way switches 1, 2, and 3 will be rendered useless if the master switch(es) is on
No, they will still switch the light off
@@dannythorpe1425 they won't, if a master switch is on then the 2 way switch is receiving power from both ways
@@eikuz follow the diagram on screen.
Homes in the UK have this exact wiring, have done for years and years, the switches ALL turn on or off regardless of master switch position.
@@dannythorpe1425 according to the diagram on the screen, those two way switches are always getting power to the no terminal and if the master switch is on they are also getting power to the nc terminal. So all the 2way does is switch between 2 terminals that both are live when the master is on.
Also the master switches have to both be off for the light to be off in this configuration.
Good example but for a more practical application a three way style switch should be used so there's no potential of a double feed from the power source resulting in a damaged device
Схема изначально неправильная, мастер выключатель должен быть 1 , и устанавливается на чёрный проводник ( или на синий) , тогда это будет работать правильно 😊
👍🏻
Безопасной схемой является врезка в фазную для переменного тока или плюсовую линию для постоянного тока, чтобы исключить на потребителях наличие напряжения, даже когда он не включен
Damn bro figured out 4th grade science
exllent
Now this accurately depicts two way switches
Master switch 1 = Master switch 2 = ?
30 years of doing complex wire schematics, I'm surprised by how many likes this got.
Simple always simple.
Its hostel wiring , right ?
May be
Minecraft redstone prepared me for this moment.
Guys, i have uploaded a new short video of modified Master switch wiring demo with Latching relay. Kindly watch and comment your opinion.
ruclips.net/user/shortspeO_Elnl2yI?feature=share
A homless man drew these its for the switch relay...
👌☺️
These circuits are enough for me to study for an entire junior high school😂
Доступно, для новичков красота!❤
This looks like an automatic control situation with override on switches. In this type of scenario you can get away with connecting the switch leg from the master switches to C (common). Although you can do this with single pole switches for the master switches, you should use 3 way switches in series for the 2 master switch locations.
I have close to no knowledge of conductivity and this actually gave me a good understanding of the logistics of a master switch. I did have to watch the video a couple times and pause a few times but it got through to me!
Wow thanks for your sharing.i Luke it
Very good. But now we have wifi or digital switch which make anything possible 😊 thanks for sharing good
Although it's a good way to show hoy electricity works, in real circuits, you should also use 3 way swithches for the masters aswell. Then you can also turn off your circuit from either master switches
Thank you for your suggestion❤
I didn’t see the black conductor for a second. Lol
It’s interesting to see brightness changes with different configuration
That is because of source current shared by 3 LEDs. Here i have been used small amount of source current. When its come to Home AC supply, there would haven't current problem
Greetings
Bruh this helped me with my job and understanding normally open vs closed ❤❤
Bro i have uploaded a modified master switch wiring video. ruclips.net/user/shortsjTqQZ3_4JRc?feature=share
Amazing wireing diagram but is it really necessary to have 2 switches both leading to the exact same place it just makes things look more complicated when it really doesn't have to be
amazing ide, thnak's Bro
Ini yang ingin saya simulasikan juga untuk masa mendatang 😊
I saw this setup in the wild once. House built 1928, original wiring done like this.
i have uploaded a modified master switch wiring video. ruclips.net/user/shortsjTqQZ3_4JRc?feature=share
nice. i made one of these just before my seventh bday
Отличное пособие объяснить начала электрики....
very nice demonstration
Glad you liked it
Simplest way to teaching kids about Computer language (binary)
The way you wired this contraption made me a bit confused well at least for my school's standards, they do it a bit differently
This sounds like the kids bop version of The Real Slim Shady
Bro this is easier than redstone wiring in minecraft frfr
Good thinking using a metalic mechanical pencil to poke live wires 👍
Hey just wanted to take this time to say good job 👏,,but my concern is that what if one of the master switch leave on dose it turn off from the next master switch???
Amazing circuit ⚡️
जोरदार सिस्टम है भाई
Correct me if I'm wrong; but, those upper switches have to be 3 way switches, instead of 2 way switches.
Now show us how they would wire up 3 switches to control one light bulb, so that any switch can turn on or off the one light bulb.
Nice demonstration, nothing bad at that. But as electrisian i had to say that this is not code complaiant, because you fuck up the colors. Blue is the color of zero or return wire, and Black is the color of live wire (mainly L2).
I love how working Led
This is basically the ancestor of computer codings
i have uploaded a modified master switch wiring video. ruclips.net/user/shortsjTqQZ3_4JRc?feature=share