Electro maker

When you short the output the relay will activate by flowing of current in relay coil pins

You can use 16 amp plug socket but you can't use 16 amp fuse. I recommend using 1 amp fuse because it can handle upto 500w.

At high voltage the fuse will burn and the circuit will break

Transformer is must in this circuit you can use a power supply instead of transformer. Mov is used for over voltage protection

I don't understand which component you are asking,in input there is a 1amp fuse and in Output there is a mov

Thanks bro please vote my instructables in audio contest

It generally takes about 4 hours to charge an 18650 mod battery using a separate charger. If you use a Micro USB charger, it is likely to take about three hours. However, be advised that there can be some slight variance in charging times, even for a new battery.

You are welcome

It will work

Any colour led works

Check out this video https://youtu.be/fVjfRRdSY2M it will help you

Use pir motion sensor

Try it bro all the best

Try connecting transistor in reverse but I don't know it's work or not. Thankyou.

You are correct your comment is very valuable to me

Because I repaired 20+ led bulb. In all that bulb the electrolytic capacitors was not functioning thanks.

Oh I forgot it thanks for your valuable comment

No problem I don't. need votes or likes

next time will give more information thanks for the feedback

Good work keep it up

That is shank trimmer capacitor

The same problem facing can i use trimmer capacitor in the radio.

This led is only 1ampere and the cooling fan is about 0.5ah.

I added a heatsink and a extra fan for the led

You can clearly see holes on both sides of the box