I connected the DIY Spectrometer to my Sky Watcher Equinox Pro 80mm telescope for the first time using my ATM beam-splitter telescope-optical fiber connector.
Spectrum of white light LED ceiling light:
Spectrum of white light LED wall light – similar spectrum visible but intensity significantly reduced as fainter light:
Spectrum of Compact Fluorescent ceiling light:
Spectra of variety of coloured LED torches. Each of these torches are white light LED torches. I have used coloured balloons over the end of the torches as filters. Note that the frequency of the peaks on the spectrum moves to higher pixel readings on the x-axis as the colour moves from blue to green to orange:
Pink torch – pink and red do not register on the spectra below because their wavelengths are outside the range of the spectrometer:
Red torch – red is outside the range of the spectrometer but an element of colour is being picked up on the spectrum due to the fact that the balloon is not a perfect filter: