Abstract <p>Hydraulic characteristics of channels with spatial lattice structures obtained by laser selective sintering of metal powder are considered. The problems of cooling and thermal stabilization of heat-loaded elements of radio-electronic and electric power equipment under conditions of increasing heat generation of modern element base are investigated. Porous heat-exchange elements and their application with high-tech spatial lattice structures are analyzed. Application of spatial lattice structures as heat-exchange elements is considered for optimization of heat transfer and ensuring high strength characteristics of structures. The results of the research confirming the promising application of radiators based on spatial lattice structures in cooling and thermal stabilization systems with the provision of an optimal combination of hydraulic and heat exchange characteristics are obtained.</p>