Great !
Now you can calibate it with a calibrated spectrometer or/and with pretested emitters and flashlights, its no matter that it costs 10$ or 50, as long as its calibrated it will work and serve your needs
Great !
Now you can calibate it with a calibrated spectrometer or/and with pretested emitters and flashlights, its no matter that it costs 10$ or 50, as long as its calibrated it will work and serve your needs