The cooling of various electronic components through aluminum radiators is a transfer of thermal energy (heat transfer) from a body with higher temperature to a body or a medium with a lower temperature, which is most often the environment. Aluminum is used for the production of cooling profiles because it has low thermal resistance, it is easily formed and it is affordable. The calculation of a cooling radiator in each specific case is described here and depends on the temperature of the electronic component or system which is to be cooled, the temperature of the environment, the thermal conductivity of the aluminum profile, its shape, the way in which it is set, the good thermal contact between the surfaces of the electronic device and the radiator, as well as on the thermal conductivity of the silicone paste, if any, the thickness of the dielectric substrate, etc. In Vikiwat Ltd. you will find various profiles of cooling aluminum radiators in packs of 0.1m, 0.25m, 0.5m, 1m, 0.06m, 0.05m, 0.04m, 0.17m, 0.08m, etc. as well as a wide range of oxidized radiators.