The textbook was prepared in accordance with the current educational standard of the Russian Federation and the program of the course "Light engineering" . The training manual considers the main theoretical information about the sources of optical radiation and their characteristics, and also provides a method for determining the lighting values depending on the electrical . The training manual is intended for students of universities studying in direction 35. 03. 06 "Agroengineering", the profile of the bachelor's training "Electrical equipment and electrical technologies in the agro-industrial complex", and can also be used for graduate students and specialists dealing with the problems of studying lighting equipment and lighting systems.