Light-emitting diodes luminaries for lighting purposes for illuminating foodstuffs and for the illumination in refrigerating apparatus, refrigerating chambers, refrigerating cabinets, and refrigerating display cases, for the illumination of signage and advertisements, for the illumination of rooms, buildings, and streets; light-emitting diode lighting installations; light-emitting diode lighting fixtures in the nature of strips; light-emitting diode lighting fixtures in the nature of modules;...