Since this Livarno bulb refused to work after few months of fine operation I decided to dismount it.
Power supply was covered in rubber and it take a while to clean it between the components.
32 LEDs are used for this bulb. I've tested few of them with a 5V power supply and are very bright (don't look at them since is not a nice feeling after that)
Here is the power supply. Still has rubber left between components.