1PC 50-75mm AC90V-240V Microscope Bottom Light Source LED Light Illuminator

USB LED Ring Bottom Light Source Adjustable Brightness for Biological Microscope

USB LED Light Rechargable Microscope Lighting Bottom Supplementary Lamp Source

1PC 6mm-98mm Adjustable Mechanical Iris Aperture Diaphragm for Microscope/Camera

50mm Microscope Bottom Light Supplementary Source LED Lamp 90V-265V 3.6W

Biological Microscope Bottom LED Light Supplementary Lamp Source 110V-240V

Adjustable Gooseneck Lamp Spotlight LED Microscope Universal Clamp Light Source

100V-240V Adjustable Brightness LED Ring Bottom Light Source Stereo Microscope