FIELD: illumination engineering. SUBSTANCE: source has transparent protecting shell wherein selective ceramic emitter is received. The emitter has catalytic spiral secured at the outlet of the nozzle made of hard melted material and coupled with the end of gas pipe line. The protecting shell has two openings. One of the openings serves for supplying oxygen-hydrogen mixture from the electrolyzer to the emitter. The other opening serves for passing a stem duct for discharging combustion products (vapor) condensate of which (water) is returned to the electrolyzer and thus the cycle is closed. EFFECT: enhanced reliability. 1 dwg
