LOMO bulb for a microscope 8V 20W model PH20-8-1. For microscopes of the MBS series (MBS 1; MBS 2; MBS 9; MBS 10). For illuminators of microscopes of the Biolam series; Metam; Polam ; MBI; MBR and other.Also suitable for some Zeiss, Meopta, Olympus microscope illuminators.
The bulbs are new, not used.
Buying a few pieces you save on shipping.
I will answer all your questions.