Luminous intensity is a basic photometric quantity that describes the power of electromagnetic radiation of a point source in the frequency range of visible light. One of the first light sources whose luminous intensity was studied was a candle, so the unit of measurement for luminous intensity is called the candela (lat. candela: candle). The definition of a candle has changed throughout history. At the end of the twentieth century, a definition was adopted according to which one candela corresponds to the luminous intensity of one candle. In this paper, the luminous intensity will be determined for different sources, i.e. for candles made of beeswax and paraffin. The obtained results will be compared with each other as well as with the literature value of light intensity of 1 cd. Also, candles of different diameters and wick thickness will be used in the experiment, so it will be observed how the diameter of the candle and the thickness of the wick affect the light intensity. It is concluded that beeswax candles have a higher light intensity than paraffin candles and a smaller relative error. Furthermore, it has been shown that candles with a larger diameter and a thicker wick have a higher light intensity than candles with a smaller diameter and a thinner wick. Finally, it was shown how the topic of the final paper "Measurement of luminous intensity for different sources" can be applied in high school classes as a weekly project.