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Parameters of light and lighting

Light intensity

Luminous intensity - candela

Luminous flux - lumen

Illuminance - lux

Daylight time

Light spectrum

Light color - Correlated color temperature (Color temperature)

Color rendering index

Direction of light

Natural lighting according daytime

Ways of lamps emitting

Light sources

Natural light sources

Biological light sources

Thermal non-electrical sources

Thermal electrical sources

Gas-discharge lamp

Low pressure discharge lamps

Electrode source

Non-electrode source

High pressure discharge lamps

Electrode source

Non-electrode source






Street light

Industrial light

Emergency light

Mining and explosion-proof lamps

Light as a pollutant

  1. Air pollution
  2. Water pollution
  3. Soil pollution
  4. Light pollution
  5. Plastic pollution
  6. Noise pollution

Correct lighting according to circadian rhythms

Light in Arts

Non-natural light and plants growing

Light in legislation

Light in law

Light in norms

Books and other publications about light

Biodynamic lighting


Tunable white

Pro-cognitive lighting

Full-spectrum lighting

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