ESP32 water isolation

[HIROFAIRLANE]

Hello all,
I used to have my garden watering system controlled by an ESP32 placed in a safe dry place. But after a few years the cheap cables I used to power my 3 electrovalves have corroded.
My first attempt was to replace old cheap cabling by new quality one, but the corrugated tube seem to have a sharp corner or who knows, and the new cable is stuck in the middle of the way.
The good new is that I have 220v power line, and room for mostly anything, but it will be in poor weather conditions exposed to heat and even under water when heavy rain.
Could be a good idea buy a high quality box with isolation jelly and put inside the below? My main concern is about the heat dissipation.
-standard ESP32
-small 220v to 5v converter for powering the ESP32
-standard cheap 4 relays board
-small 220v to 24v converter to power the electrovalves

[bidrohini]

Insulation jelly can protect against moisture. But it may also trap heat. To mitigate this, you can use thermal insulation materials on the internal walls of the box. These materials can help maintain a stable temperature within the box and reduce the impact of external heat.