Infrared-red?? Is this a solution?

Sorry to interupt. But i do not know the word led. At least bot in english :).
Are leds the lamps using ionisized gas?

You are not interrupting, this is your thread! :)

LEDs produce light with extremely little heat and are very energy efficient compared to incandescent and halogen lamps (the two common types that produce light and heat). I think you might be thinking of mercury or sodium vapor lights.

https://en.m.wikipedia.org/wiki/Light-emitting_diode
 
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