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Microscope Illumination Explained

Not sure what kind of illumination is best for your particular microscope use? This page explains some of the differences between illumination options for microscopes.
Tungsten Microscope Illumination

Tungsten is generally the least expensive illuminator found in a microscope. The light is bright, but it is also a hot light. If you plan to view any live specimens such as protozoans swimming in pond water under your microscope, you may want a microscope with a cool light, so you do not kill your specimen.

Fluorescent Microscope Illumination
Fluorescent illumination is a cool bright light. This illuminator is great for viewing any specimens that you wish to keep alive under your microscope light.
LED Microscope Illumination
LED illumination is often the illuminator of choice, especially for student microscopes. LED light is cool and will not harm living specmens. The LED light bulb also lasts for nearly 100,000 hours of use, so you will not need to replace light bulbs nearly as often.
Halogen Microscope Illumination
Halogen illumination is a very bright illuminator, but it also tends to be a hot light. Halogen light is used in many professional microscopes, but is not generally recommended for students who may be trying to view live specimens, as the heat from the light may kill their specimen.
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