FIELD: electricity.
SUBSTANCE: invention relates to light sources operating on the base of semiconductor light-emitting diodes. Heat radiator is made of a set of plates with 
or 
-shaped form that contact with each other by a flat horizontal part. Length of horizontal part of each plate is bigger than the previous one as they approach the light-emitting diode. Ends of plates are incurved to the side opposite to heat-removal base. Heat removal base is placed under heat radiator. According to the second version length of horizontal parts of radiator plates increases from the outermost plates to the medium ones and heat-removal base is placed under the heat radiator between ends of incurved plates. According to the third version heat-removal base is placed at butt end of the radiator between ends of incurved plates.
EFFECT: reducing dimensions of light fixture, optimising heat area and air flow in heat dispersion area.
3 cl, 4 dwg
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