Abstract: The study presents the upside potential for increasing the efficiency of lighting equipment, designed for irradiation of farm animals, poultry and plants. The ways of increasing the efficiency of irradiation facilities with the corresponding spectral composition, the radiation intensity curves, at the maximum values of the radiation sources effective efficiency, coefficient of performance and optimal arrangement of irradiators, the radiation flux adjustability are presented in the research, on the basis of fundamentally new approaches to the design of radiation sources and irradiation facilities, methods for monitoring and forecasting final products, according to the biological objects parameters.