Automatic Night Light using BC547 || 4v LED Strip || LDR Circuit || Emergency Light

[@karanchowdhary9935]

I did by seeing your experiment and I was successful in this experiment

[@sm_electronics]

Congratulations 🥰🥰🥰

[@aditya25328]

I have 10 led each of 4 volt so this circuit can work with it ?

[@sm_electronics]

ruclips.net/video/oaxj92VuFQk/видео.html
use this circuit and give 4 to 5v

[@jagseer_machenical]

Agar 3.7 volt bettry se opret kre to same circuit kaam kre ga । Ja fer resistance ki value dekhni ho gi kon ci lge gi?

[@sm_electronics]

circuit same rahega

[@jagseer_machenical]

@@sm_electronics okay thns

[@jagseer_machenical]

But light bhut kam glow krti hai 25% baki 75%drop ho raha h 4volt ki strips light add ki thi

[@sm_electronics]

ruclips.net/video/oaxj92VuFQk/видео.html
mosfet circuit use karo sab problem solve

[@meddiys6171]

Great project , but can we use this circuit with 12V led strip.

[@sm_electronics]

Yes but use less led. Bc547 can handle 100ma.

[@miteshdhanani]

As u have shown this if we want to connect a 3W 6V 3A solar and LG 2600mah battery then

[@sm_electronics]

ruclips.net/video/j5goleD-5yI/видео.html

[@alejomendoza1173]

Hola buenas y si es tira led de 12v los materiales son lo mismo o cambian las resistencias? Gracias

[@sm_electronics]

Use power transistor like bd139 and everything will be fine.

[@linhkien1902]

mạch cảm biến ánh sáng bằng năng lượng mặt trời 👍👍👏👏🏳️‍🌈

[@dulalmajumder4917]

Will it glow by 4v led torch bulb connecting parallel ??? Tripura

[@sm_electronics]

Yes....

[@dulalmajumder4917]

@@sm_electronics I failed to glow 6nos.of 4v led torch bulb 1w each parallel connection though I used 55k resistor ,can u tell me where my fault was ??? Tripura

[@sm_electronics]

ruclips.net/video/oaxj92VuFQk/видео.html
Use MOSFET and 4v supply . Replay me.

[@latagavirangalatagaviranga2577]

Instead of this lights we can use LED which is already connected with wires?
Yes or no
Pls reply
👇
👇

[@sm_electronics]

no

[@damodarprasadsahu172]

Room के लिए ठीक है night lampकी तरह useकर सकते हैं इसे

[@Ramesh-cg8vg]

Bro LDR sensor is not working light turn on directly
Please provide buy link of good LDR

[@sm_electronics]

see local market

[@Ramesh-cg8vg]

@@sm_electronics
I checked already they don't have I purchased on Amazon but light turn on directly

[@sm_electronics]

use mosfet ldr circuit

[@9krishbhoir734]

What is required components for 18 watt syska automatic light tubelight

[@AdityaKumar-ml5qe]

Very very thanks you
bro you are right

[@sm_electronics]

Thanks 🥰🥰🥰

[@RohitKumar-ws7zb]

Bhai ye lite kam kiyo jalti hai LDR lagane ke baad aur baishe direct tej jalti hai sem kiyo nahi jalti ye batye

[@sm_electronics]

Use MOSFET circuit
ruclips.net/video/oaxj92VuFQk/видео.html

[@ashokkumarmunirathnam9414]

🎉 😮 😊 super bro 😁

[@astronic4522]

Nice project brothers

[@PritishRajPal]

Keya 4volt cob round led use kar sakte ha ?

[@sm_electronics]

ruclips.net/video/oaxj92VuFQk/видео.html
is circuit ko use karo and 4v supply do.

[@visheshrawat2323]

Can we use TL431 transistor

[@sm_electronics]

use bc 547

[@raviranjankumar9828]

Maine try Kiya Automatic on off to kar raha hai lekin led light kam de raha hai kya problem ho sakta hai

[@sm_electronics]

@@raviranjankumar9828 make this circuit
ruclips.net/video/4jFYQVw5QWI/видео.html or
ruclips.net/video/oaxj92VuFQk/видео.html

[@dulalmajumder4917]

Very low brightness of led strip. How is to increase brightness? Tripura.

[@sm_electronics]

Use MOSFET circuit
ruclips.net/video/oaxj92VuFQk/видео.html

[@KartikPatel-nt4ff]

😅😅😅😅😅😅well information good show 😅😅

[@sm_electronics]

thanks 🥰🥰🥰

[@saloni455]

आउट पुट मे वोल्टेज कम क्यो हो जाते है लाईट कनेक्ट करते ही

[@sm_electronics]

ruclips.net/video/3lIePv_pXHs/видео.html
ऊपर बाला सर्किट ट्राई कारो।

[@PriyadharshaniNirmala]

Cool

[@FARISAMSYARBINYAHYAMoe-fx8fe]

Is there a problem if i use 5v led strip?

[@sm_electronics]

no

[@yahyabinjabar7392]

what kind of battery that i need to use if i use 5v led strip, can i use other battery as the power source than use the dc as the power supply (and how much volt the battery need to have)

[@sm_electronics]

@yahyabinjabar7392 5v

[@yahyabinjabar7392]

​@@sm_electronicswhat if i use 3.7v battery?

[@yahyabinjabar7392]

or can i just use 9v battery?

[@asantar2038]

Pls reply can i use 4v 2amp battery?

[@sm_electronics]

yes

[@FARISAMSYARBINYAHYAMoe-fx8fe]

Can i use 9v lithium battery as the power source if i use 5v led strip

[@sm_electronics]

t.me/sm1729
telegram pe aao

[@CircuitCreator]

Great job

[@sm_electronics]

Thanks bro 🥰🥰🥰

[@cjjones8414]

Can I use 12v dc with 3 12 volt led's

[@sm_electronics]

yes

[@sukanyagupta1460]

WILL IT WORK WITH 9V BATTTERY

[@sm_electronics]

yes but use resistor for led

[@Abbas0628]

​@@sm_electronics which Resistor??

[@SanuKumar-jl2mr]

100k resistor kitne watt wala lagaya h

[@sm_electronics]

1/4 watt

[@Abbas0628]

Can it works on 9volt dc battery 1:07

[@sm_electronics]

yes. but use 9v led

[@mppn]

Not working properly light brightness very very low
And i have no any components 😢

[@abusufyanalam]

Good but battery 🔋 and also a charging hub not show in diagram

[@sm_electronics]

use tp4056 module

[@zurairkhan]

Amazing

[@sm_electronics]

Thanks

[@516vighneshjadhav2]

Sir ye work kar raha he par mujhe led ki brightness badhani he to kya karu

[@sm_electronics]

ruclips.net/video/4jFYQVw5QWI/видео.html
is circuit ko banao

[@516vighneshjadhav2]

@@sm_electronics thank you

[@rifatgoder7040]

I use quarter or half resistor 100K ?

[@sm_electronics]

telegram me aao..
t.me/SM1729

[@kabandajamir9844]

The best

[@sm_electronics]

Thanks 😀😀😀

[@rupeshjoshi8440]

Very nice 👌

[@sm_electronics]

Thanks man😍😍😍

[@afaqelectronic7866]

Nice

[@rifatgoder7040]

It is not working and I turn on the room lights but the LED is still on and the bc547 transistor is heating

[@sm_electronics]

give 5v only and use 100k

[@rifatgoder7040]

Can I use 4 volt

[@sm_electronics]

yes

[@РустамЗоидов-с7г]

👍👍👍

[@sm_electronics]

Thanks

[@JasimUddin-sn1hm]

thank you bhaiya Lakhan thank you

[@sm_electronics]

Welcome 😍😍😍

[@djgaming5398]

9volt use please tell

[@sm_electronics]

but use resistor

[@djgaming5398]

Kitna ahom resistance langa please bolo

[@sm_electronics]

220 ohm

[@utpalst331]

Bahut aacha

[@sm_electronics]

Thanks ❤️❤️❤️

[@asantar2038]

Pls reply
Can i use this circuit to trigger a 5v relay?

[@sm_electronics]

yes

[@sm_electronics]

give 6v or 5v power

[@sm_electronics]

ruclips.net/video/ZTjpCx4Tis4/видео.html

[@Mosethicplays]

working

[@VALASUDURAI]

it works but not efficient it needs powerful light source to power of the light it not good in indoor use and its require to much power to get bright light from this circuit

[@sm_electronics]

True....

[@AnshrajOjha]

Bro light dhema rosani kar raha hai kya karu😢

[@sm_electronics]

@@AnshrajOjha ruclips.net/video/4jFYQVw5QWI/видео.htmlsi=Oa_uodIrERNZMYkV ye video dekho

[@gasseneletohamade2037]

Para ligar 12v e fita led qual o componente tenho que mudar

[@sm_electronics]

You can use 12v supply and 12v led strip without changing any comments.

[@gasseneletohamade2037]

@@sm_electronics thank you very much

[@nadeeshachrishani8394]

We need this same resistor

[@sm_electronics]

no.You can change the value between 10k to 100k

[@lsshortsvideo178]

Wow

[@sm_electronics]

Thanks...

[@mr.vagle2005]

Sir work nahi kr raha transistor bhi thik h

[@sm_electronics]

bc547 use karo ye circuit work karta hain.

[@v___s___ff2206]

Bro main ne try kiya nahi ho raha

[@sm_electronics]

@@v___s___ff2206 bhai transistor change karo. led ka negative positive thik se lagao.

[@v___s___ff2206]

@@sm_electronics ldr kharab ho gaya to kya kre

[@sm_electronics]

ldr kharab nehi hota

[@v___s___ff2206]

@@sm_electronics bro mere pass BC547 B614 hai esase kaise light banaye ple video send kro

[@Mosethicplays]

Can i use 10k

[@sm_electronics]

yes but low sensitivity.

[@aapkadancedr2356]

durgesh kumar

[@deedee.exe_]

i did this but the led was on the whole time

[@sm_electronics]

Cover the ldr sensor

[@naishadhladva4979]

12v का एक वीडियो बनाए

[@sm_electronics]

Comming soon

[@naishadhladva4979]

@@sm_electronics
Thanks for your Response

[@rajanipatel5162]

not working

[@sm_electronics]

replace the transistor.make as shown.

[@sm_electronics]

replace the transistor.make as shown.

[@karanmalhotra8598]

Not working brother

[@karanmalhotra8598]

Transistor bc 547 ki jgh bc 548 bga le

[@sm_electronics]

ha bhai

[@rakeshrakeshkumawat5134]

ESA nhi ho Rha h

[@sm_electronics]

BC547 check karo...

[@djgaming5398]

9v battery

[@djgaming5398]

Please talk

[@sm_electronics]

@djgaming5398 bolo bhai

[@djgaming5398]

9volt battery use kar sakta hay kya please bolo

[@sm_electronics]

ha bhai lekin led ke sath resistor use karo.

[@cartoonmusic6803]

Not bright light

[@sm_electronics]

Use BC337 or high power transistor

[@cartoonmusic6803]

Bc 337 se kya bright jaada milegi raat ko same connections

[@sm_electronics]

Yes or bd139

[@beyazgulnevzat2151]

.