Does the light intensity tester filter the LED spectrum?
Generally white LED fluorescent lamp, light wave length of about 450nm~465nm, while the fluorescent lamp wavelength range of 400nm~750nm, so there are different color temperature exists.
Therefore, the spectrometer does not filter the LED spectrum, but itself is a single wavelength light source.
The fluorescent lamp also has long UV and infrared, but the radiation is weak and is dissipated at a relatively short distance.
