The light bulb form factor was created hundreds of years ago for incandescent light bulbs. In this form factor, it is impossible to properly cool the LEDs. I used 12 pieces of Yeelight Pro 8W in a 10 m² room, and this room was as bright as the sky.

Touch screen in the doorbell… What’s next? A doorbell that requires a mobile app to use?

My RPi4 refused to start with a 2x2.5" hard drive, so I did some workarounds. I connected the USB 3.0 +5V pin to the GPIO and powered the RPi using a PD trigger with MINI 560 (5A DC-DC converter). In my case, a random 18W QC brick was enough.