Famous Testing A Fluorescent Light Fixture References. Web by recording the fluorescence emitted when the fluorophore solution is exposed to light at a wavelength ( λ1) where the light intensity ( i1) is known, and a wavelength ( λ2) where the light. Web thus, the most reliable way to test a fluorescent bulb is to install it into a known working fixture.

It is on the fluorescent fixture. Next, replace the tube or tubes. This might be in your home's electrical panel or a dedicated panel in a commercial setting.