FIELD: physics.
SUBSTANCE: combined LED lamp comprises case with standard filament lamp base, p.c.b. with LEDs, voltage converter, electric switch and pulse generator to supply LEDs. Aforesaid case accommodates holder for duplicate minion filament lamp, arranged axially to standard base. Voltage converter p.c.b. accommodates duplicate lamp cut-in unit to cut the latter in heating conditions at lower power and negative ambient temperature and cut it to maximum power when LEDs fail. LED'S PCBs are interconnected and connected voltage converter PCB in stacked circuit and represents the rings with inclined LEDs arranged all around PCBs so that LED radiation angles cover horizontal and vertical illumination sectors.
EFFECT: higher safety, prevention of icing and snow sticking, higher intensity of lighting.
2 cl, 4 dwg
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