5. brightness adjustment: 0~ linear dimming
6. LED number of luminous tubes: 24
7. Inner diameter of ring lamp mounting dimension: 22mm or 25.5mm
144 LED internal diameter, 60MM microscope light source, stereo electron microscope, adjustable annular light source
Package Included:
1 x 24 LED Adjustable Ring Side Light(22mm or 25.5mm or 32mm)
1 x Power line
1 x Light source regulator