Bulb without the filament. Is it possible?
Yes of course. Such a bulb never burns out but also it does not need a power supply.
It's not the only advantage of it.
Light from such a bulb can be used for many technical and medical applications.
Free, useful and healthy light.
You can pay in directly on account:
Piotr Ryszard Drajer
In the title of transfer type: donate bulb
or PayPal address: firstname.lastname@example.org