It provides cool, even & bright illumination.
The boom Stand allows you to turn the microscope head around two different axis (X & Z), allowing you point the microscope head in various directions.20X & 40X Stereo Boom Microscope With Fluorescent Light It comes with a trinocular head, 30mm SUPER widefield high-eyepoint eyepieces, & a sturdy heavy-duty boom Stand, offering crystal clear sharp images, super widefield of view & large working distance.