FIELD: agriculture, lighting engineering. SUBSTANCE: metal-and-halogen lamp has burner of optically transparent material with electrode installed tight in it. Burner is filled with inert gas and additives to provide burner with halogenides of radiating metals. Strontium halogenide in the amount from 0.3 up to 6.0 micromole/qu.cm is used as additive and pressure of inert gas is between 1.33-2.00 kPa. Lithium halogenides can also be added into burner in the amount of 0.1-5.0 micromole/qu.cm. EFFECT: enhanced efficiency and stability of lamp. 2 cl, 2 dwg, 1 tbl
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