Today I will show to how to make How to Run 3V LEDS on 220V AC 

All the material you need for this project:

Here are the steps of this project:
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Show results：

The product links as below:

IC chips: https://www.utsource.net/category/ele...

Modules: https://www.utsource.net/Modules?sour...

Passive components: https://www.utsource.net/PassiveDevic...

Sensors: https://www.utsource.net/home/sensors...

LED lightings: https://www.utsource.net/category/led...

More electronic components you may be interested:

L298N https://www.utsource.net/itm/p/11243360.html
HCPL7800A https://www.utsource.net/itm/p/419704.html
990-9413.1B https://www.utsource.net/itm/p/1863839.html
2N3055 https://www.utsource.net/itm/p/1456035.html
AF9592A https://www.utsource.net/itm/p/1766334.html

For more details, pls check the video on youtube: