Readme file - dataset for the abstract ‘Perovskite-based color converters for Visible Light Communications’ Some fo the data is used in the Figs. 2 and 3 of the aforementioned Light, Energy and the Environment Congress abstract; the remainder is not used in figures, but is the base data from where results presented in the abstract are deducted. The files of the dataset are csv files and what they represent is detailed below. The name of the file relates to the Figure of the abstract where some of the data is plotted (on the cases tha tis plotted). • Fig.1_Left_-_Colour_converted_vs_pumped_optical_power.csv: colour converted optical power as a function of the blue optical pump power. The data includes columns representing the LED optical power (mili-watts) and the colour converted optical power (mili-watts) for the sample studied. • Fig.1_Right_-_Spectral_emission.csv: spectral emission of the IPQD/PMMA composite. The data includes columns representing the wavelength (nm) and the respective intensity (arbitraty units) under micro-LED excitation. • Fig.2_Left_-_Frequency response_and_fit.csv: frequency response of the composite and fit function points. The data includes columns for the frequency (Hz) and frequency response (dB), as well as the points that make up the fitting function to the data, with columns for the frequency (Hz) and frequency response (dB). • Fig.2_Left_-_PL_lifetime_decay_and_fit.csv: PL lifetime decay obtained by Time Correlated Single Photon Counting and points for fitting function. The data includes columns representing the time (ns) and Intensity (counts), as well as the points that make up the fitting function to the data, with columns for the time (ns) and intensity (counts). • Fig.3_data_rate_vs_BER.csv: results of the data transfer in free space. Columns represent the data rate (Mb/s) and the associated bit-error rate (BER) for OFDM modulation scheme.