Circuit Diagram for LED bulb running on 120V AC

I have been watching a lot of YouTube videos of building your own LED bulb using a scrap CFL bulb. Since I have watched a lot of those videos, I want to build one. However, almost all of those videos are about making one that runs on 240V AC, and where I live I use 120V AC.

Take this video for an example:

I also noticed that in that circuit diagram, there is a 5th diode that is unnecessary. So I want to build an LED bulb similar to that one in the video above. But I am not so good with electricity, so I am not so sure how I can modify the circuit so that it will run with 120V AC instead of 240V. Can someone help me with this?

tiencuongbk14 days ago

Good Good !