Automatic Night Light Circuit

[joelogweno]

simple, reliable and working circuit. well done and keep it up.

[Demonicbutch]

One question. Would the ldr not drain the battery while it's receiving light

[kamleshrana]

Battery me ek hi taraf dono wire ku lagai hai ?

[Sanjay-tchu]

What happens if use 2N3904 transistor instead

[md.fariyad]

Very good diagram .I am happy that I made this circuit and it is working alright. But I want to point out one thing that the light automatically glows in the evening. It is not so dark in the evening but the ldr starts working and the light is on .Can this be rectified so that it works only when it is complete dark .Please advise .

[Sanjay-tchu]

what if im only provided with 9 V d.c. power supply, light bulb (2.5 V, 0.3 A), light bulb (4.8 V, 0.3 A), 3 L.E.D. and 2 resistors (180 Ω) and 1 resistor (390 Ω). sorry for all the trouble but help will be much appreciated :)

[ShaponDas-ph]

Why my led all time glow pleas reply me bro😢

[unstoppable]

When my room light is on.... Led was slightly lighting...
Please give an advice to solve the problem 🙏🏼

[miteshdhanani]

Instead of this led if we want 4v leds to be used then how many r to taken and want to be connected to a3W6v solar panel

[julakantinagaraju]

How can I OFF the light if I doesn't want it.

[Noobda_]

i took another NPN transistor ....i did not should i do ?

[SHUBHAMPUNIWALA]

please give explanation for circuit analysis

[SanuKumar-jlmr]

100k and dusre resistor kitne watt wala lagaya h

[Rahulk]

In the place of led if we 2ant to connect 4 volt light which resistance we hv to remove

[prasanthkwt]

Please help me to make in 230v AC Power Supply night glowing technology

[dulalmajumder]

Is there any option to increase the brightness of 4v round led ? - Tripura

[roderickjoneg]

mine does not work, i follow all the step .. pls help

[kasab]

Hi!can anyone pls tell me if I have a 9v battery what components should I use?

[arunk]

Suppose if I use this circuit for 12v then what resistance value to be used., can you please explain me ?

[sarabjitsinghsondhi]

I want to connect relay so that I could on off my staircase light