The article provides an overview of the most pressing issues arising from the widespread use of LED lamps in buildings and structures. This work is a precursor to a series of articles devoted to research in this field. The features of operation of electric lamps currently used in lighting systems are considered. The influence of lighting quality on human health and the effect of lamps on the electrical network is shown. The radiation spectra of lamps and their key difference from the natural solar spectrum are considered. The article presents the influence of the nature of the nonlinearity of the load of electric lamps on the quality of the power supply network and its individual components. The characteristic of the service life of energy-saving lamps is given.

Keywords: lighting, fixtures, lamps, lighting spectrum, nonlinear load, harmonic distortion, duration of operation, LED