FIELD: electricity.
SUBSTANCE: invention relates to lighting engineering. A lighting device includes a housing from non-conductive material, and the following components located in it: a light source based on light emitting diodes, which includes at least one first light-emitting diode generating the first emission having the first spectrum, and at least the second light emitting diode generating the second emission with the second spectrum different from the first one, a lens connected to the light source, a heat-absorbing device, as well as a base for connection to a seat and an electric circuit with a power converter. The technical result is achieved due to the fact that it is provided with a temperature sensor located in a close proximity to the light source, and the power converter is a switching power source receiving a temperature signal for control of currents passing through the first and/or at least one second light emitting diode so that the first current can vary from the second one.
EFFECT: improvement of lighting efficiency.
10 cl, 22 dwg, 2 tbl
