Automatic ON and OFF Light Switch | Simple DIY Project

This device turns lights on automatically when it's a night, and off when it is a daytime, just like street lighting.
How it works: This device turns light bulb ON when it senses darkness and turns the light bulb off when it senses light.
What you need to build this device:
1. MOSFET 2N7000
2. Light dependent resistor LDR07
3. 470k resistor
4. 12V Relay
5. 12V Power Source
6. Wires.

[@ElectricalPro]

Hi, guys, I put a lot of effort into making good videos, but for some reason only this video got a lot of views, other my videos got unnoticed, so if you like similar projects please check my latest videos as well: th-cam.com/users/ElectricalProvideos
Thanks! Have a nice day.

[@3aafiyasheikh980]

Can you use photodiode in this project

[@Wffgcdewffkdhrhdb]

Change the value of the resistor.

[@FlowerRFabulous]

you are the FIRST and ONLY person that has made this make sense after hours and hours of researching how this works!!!
thanks!!!!!

[@heathermccune1461]

I have been looking for a simple relay switch to ad to a yard light. This is PERFECT and very well explained. Thank you

[@rajivtoshniwal3345]

Simple but Super Project . Gr8 job.

[@joshuaaustin2541]

i like this kind of vids. VERY DETAILED

[@electricalworld9186]

U r using transister LDR resister & rele & this is working excellent work man always made like this video

[@jomsshygu1572]

Great vid! How do you fix the feedback light in actual application? Maybe reduce the sensitivity? Or a latch?

[@sunantoro2692]

Is there any apparent benefit of using a Mosfet instead of ordinary universal Transistors? Using ordinary transistor need a schmidt Trigger circuitry as well otherwise the Relay chatters when the light is "half bright half dark"

[@brucecummings5480]

Well explained, thank you and baraka Allah fik

[@joydevbiswas7441]

Wow excellent experience

[@coloradowilderness3139]

Very interesting. Thanks

[@YG3BMP-JZ13FLI]

Thank you for the information, very useful for me

[@pauloinventostube7533]

PARABÉNS FICOU MUITO BOM !👏👍

[@randomthingch1970]

Hey bud, i want to make this but i have another light dependent resistor the model is LDR Gl5516 can i use it , please reply

[@nolancorrea5015]

a two power source220v for the bulb and 12v for the relay.. thats what i wanted to know,, i am wondering if where can i get a supply from my bulb.. i though that one supply only which can regulate and amplify the current

[@veeramanikanta3482]

Nice explain

[@acestudioscouk-Ace-G0ACE]

Useful! Good work. :-)

[@loscordero]

MUCHAS GRACIAS Y SALUDOS NAVIDEÑOS DESDE DOMINICANA

[@yashodhansahoosiku7059]

nice project

[@asadbaig01]

Very good

[@lionelroger626]

Hello, you can do a montage if the call does not detect light after a few seconds. It cuts the power of a relay (in 12 volts)
thank you very much

[@josephlouellemillan5296]

Sir can i use bc548 transistor instead of 2n700? And what kind of resistor can i use if its allowed to use bc548

[@titikolomongso4723]

best of the best

[@mukeshbalani3723]

nice project.

[@gopalshekar986]

Great project ! 👏👏Very simple to.build, just a few components 👌
By the way , i thought we need to have a free-wheeling diode connected across the relay, to protect the Mosfet against the back emf

[@mohdzakaullah1970]

plz tell me which type and model of the relay you used ?
and also tell me the terminals of each and every tools.
thnx

[@pmkvysaiskilldevelopmentce700]

hi there. Can you plz aso suggest an automatic time off and on system for unmanned mobile charging point. so that it does not gets heated off due to continuous charging. It may go off after a specific time and get on after a specific time.

[@nasimuddin8048]

Good idea
supper circuit

[@forhadhosen9834]

Please make lot of amazing video like this video👏

[@manoelnilo6963]

video excelente muito bom parabens.

[@feelservice2689]

Tanks for all.

[@sharzanco]

i like it thump up and subscribed

[@melancholyme5708]

Wow! This is awesome.
Tqsm ill make one...

[@mohammadayazinamdar7030]

nice projekt

[@technicalmanmalayalam9560]

Good and simple

[@yasinkhan5921]

good job

[@manoelnilo6963]

muito bom fiz um pra mim parabens otimo video.

[@benjiesoliman9041]

amazing

[@boubakersouid2637]

nice, thanks

[@SunilKumar-vd5hf]

Very Nice Yr Kantt projects
I am sunil

[@ELSHIKHM]

That was Epic now i can put the lamp in the box and enjoy "Darkness"

[@ELSHIKHM]

@Bok ram Lmao

[@spikenard1000]

I think the sensor should be put outside of the house.

[@hannelmahinay6288]

awesome bro thanks

[@halitok3385]

Thank you so much

[@michaeljohnn2598]

Good job well done..Thank you..i hope if you could do LDR with solar panel & Recharge battery

[@theguragas]

What will happen if you let the flickering for 12hr? Will the relay melt or Bulb died?

[@ademsanlav3291]

very beautiful

[@pendejos1900]

is there a way to make the opposite thing?

[@generatorrex4071]

Nice video

[@engineermohdosama502]

Good performance sir

[@zprfikry6424]

Thank's a lot

[@aljo.antony]

Can you please tell me how to light up multiple light bulbs just by using single LDR sensor?(for light sensor)

[@ElectricalPro]

If you want to light up multiple light bulbs you need to connect them in parallel, just like in a chandelier. Just google: "parallel connection of bulbs"

[@eduardoromulomileo4814]

THANKS!! IT WORK!! YOU CAN TO USE ALSO TRANSISTOR EQUIVALENT: BC558.

[@ElectricalPro]

Hi, actually BC558 is not equivalent to 2N7000. To make it work with BC558 you at least need to choose correct value of the resistor, and with a BC558 transistor, you'll also need to reverse the polarity of a power source, because it is PNP transistor.

[@markdanielmonton4373]

can i use any npn transistor?

[@ElectricalPro]

Probably not any, but you can for example try BC547 or similar NPN transistor. I did not test it with NPN transostors at all, so I don't know if it will work, feel free to experiment.

[@nahumcupiado3262]

Can I use C828 instead of BC557

[@arifullah5153]

very good

[@sagarros302]

please please please upload a video on how to check the resistance of the coil of your relay and how to test the MOSFET... please bro please i relly need to do this. i like the video but it is not working properly. the bulb only gllows on and doesnt turns off when i cover the ldr07.

[@jsminguez21]

Easy and simple 😃

[@user-zi6lw7bx8j]

Gud idia

[@TRENDINGTECHHD]

And ur video is awesome 🤓

[@md.finuserahman7944]

nice mama.

[@lifewithjesusph]

can i use 5v relay?

[@mohammadashraf2966]

nice

[@sskkg1218]

Nice

[@upulabeyratne5308]

excellent

[@devd5899]

nicelly explained

[@mahansalki5280]

Dev D
Vfyyvg

[@m.kcreatedjoke7581]

Thank bro good job

[@sachinsahu2918]

Wow nice it is 100% working now i made it thanks broo

[@ganeshbangaru5965]

Hello how to make this circuit

[@ganeshbangaru5965]

I had made this, it's not workink

[@sachinsahu2918]

U made some mistack try gain couse of i done it and its working

[@ganeshbangaru5965]

Which rating components are used in this circuit? I made it, but light continuesly glown

[@user-pi9nz9vl9m]

Hi, if I want to turn off the light at night, turn on at day, how can I do? Thanks

[@aashishcreative2718]

Its really working

[@aravinds9154]

can i do it with dc current?

[@birjukumar3142]

Good

[@sawajiri100]

wow nice video

[@markdanielmonton4373]

can i use relay in motor parts?

[@napoylang1997]

Will it work if i use 12vdc bulb and 12vdc supply. I would like to use it in my motorcycle.

[@ElectricalPro]

Yes. I am just a little concerned about the stability of the voltage in the motorcycle (when the engine is on), it may have some impact on the stability of this device. Anyways, tell me if face any problems.

[@nickrcph3284]

is this posible for 5volts supply?

[@elektronikdevretasarimi4005]

Nice project.you should use diode for protec the mosfet

[@sudembty5045]

ooo yea tanks for ur reply

[@abdullahmuhammad7673]

i like it thanks

[@senahaloka]

Super sir

[@iblesbosuok]

May I substitute 2N7000 with IRFZ44?
May I substitute LDR with phototransistor?
Greetings from Indonesia

[@ElectricalPro]

Hi, yes, I think IRFZ44 will work. But, IRFZ44 has a higher "Gate Threshold Voltage" so maybe you will need to replace 470k resistor with something lower, for example with 220k. But I am not sure that it is necessary to replace the resistor... 470k resistor may work just fine.
If you replace LDR with a phototransistor it is not going to work (most likely). LDR is very different from phototransistor, you will need a different circuit for that, so my answer is: no.
P.S. Greetings from Ukraine

[@Ajaykumar-jo7yz]

Can I used in the circuit my hone purpose plzzz tell me

[@fadustatus888]

Very nice video
I mak projet susesfull

[@ganeshbangaru5965]

Hello how to make this circuit? I had made this but it's not working

[@thakorbhagvan153]

nice bro

[@batangenyodotcom]

Hi, how can I power it directly with 220 v instead of 12 volts, obviously using a 220 v relay. Thanks.

[@ElectricalPro]

Hi, no, it will not work like that. First of all, it needs DC, not AC, also that MOSFET can't handle more than 30V.

[@felixisaac1004]

nice I like this ideal

[@kouadioherve6966]

cool

[@aftabahmed4142]

Sorry but you have not display the transistor & resistance & relay & Dc power supply ?

[@rickshabin]

You might want to put a diode across the solenoid to protect the transistor from back EMF. and also if you include a variable resistor you can adjust the switching point.

[@ultimabear]

I came here to say that 🙂

[@mohammedsunasara6117]

I want to make for LEDs which works on 12v.....so can we use this relay for 12v output???

[@ElectricalPro]

Yes, you can control any device with the relay, bulb or LED it doesn't matter.

[@ammadurrahman5321]

nice..

[@amitjhariya3090]

Kya sahi m light atometic on off hoti h or kya ldc ki jagh photo caplar laga sakte h video banaiye sir

[@subhashgupta1690]

Kya iska kai matcher transistor agar ho to plz share

[@wahabstyle5805]

Hi can I use PN2222 in this circuit

[@talemmahnjadeed]

It is realy good thing to you

[@bhartijain6357]

Nice explained

[@ElectricalPro]

Thanks!

[@sohelrana4170]

good

[@sonusaha471]

Sencar banane maye kiye kiye lagta hai please bataye

[@user-jj9xh9ec1j]

thanke you
شكر ا لك

[@PraveenKumar-fs6of]

Explain something about Circuit !!!

[@fahadfahid5327]

NICE

[@forhadhosen9834]

It's awesome

[@kimhong7286]

Can we make with 220 AC