A friend of mine asked me for a cheap but reasonable soldering station, so I recommended him the KSGER T12.
I've found this thread (thanks to the OP) and want to share here my mods to increase the safety of the 230V~ model.
After pulling the diode with the heatsink, I've applied some Kapton tape and corrected the tilted green capacitor.
![](https://i.imgur.com/pljp2Yc.jpg)
I've also applied some Kapton on the heatsink as well, just for paranoia reasons.
![](https://i.imgur.com/fryrts4.jpg)
Putting everything back together and left some space between heatsink and PCB (paranoia, you know?)
![](https://i.imgur.com/7R0410X.jpg)
I took a closer look and found two places, where the space between the connectors is not enough (imo)
This is the rectifier on the mains side:
![](https://i.imgur.com/opk6mw0.jpg)
This is the connector where the mains come in. Earth ground is in the middle.
![](https://i.imgur.com/sBzoDnb.jpg)
I cleared the spaces between the connectors with some diamond tools:
![](https://i.imgur.com/hXnRrD1.jpg)
Mains connector (white) and the mains rectifier.
![](https://i.imgur.com/ppQdlnn.jpg)
Wires soldered:
![](https://i.imgur.com/DemO47s.jpg)
Everything reassembled, just an overview:
![](https://i.imgur.com/wtiNwYz.jpg)
I hope you may find this helpful.
Cheers,
Mounty