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AL vs. NL: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Updated on February 20, 2024
AL (Artificial Light) refers to man-made light sources, whereas NL (Natural Light) refers to light from natural sources like the sun and stars.
AL vs. NL

Key Differences

AL, or Artificial Light, is created through various technologies such as bulbs and LEDs. NL, or Natural Light, is derived from the sun and other celestial bodies. While artificial light is controllable and can be used anytime, natural light varies based on time and weather.
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Feb 18, 2024
The sources of AL include incandescent, fluorescent, and LED lights, representing human innovation in lighting. NL, on the other hand, includes sunlight, moonlight, and starlight, which are inherent to our natural environment. The variability of NL, unlike the consistency of AL, influences human activities and health.
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Shumaila Saeed
Feb 18, 2024
In terms of impact on health, AL can disrupt human circadian rhythms, especially if used excessively at night. NL provides essential Vitamin D and helps maintain natural sleep patterns, showcasing a direct link between natural light and well-being.
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Economically, AL consumes energy, leading to costs and environmental impacts. NL is free and has been harnessed through architecture and design to reduce dependence on artificial lighting, demonstrating a sustainable approach to lighting.
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Environmentally, AL contributes to light pollution, affecting wildlife and star visibility. NL, when not overwhelmed by artificial sources, maintains ecological balance and offers spectacular phenomena like the Aurora Borealis.
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Comparison Chart

Source

Man-made (bulbs, LEDs)
Sun, stars, moon
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Availability

Controllable, anytime
Depends on time, weather
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Health Impact

Can disrupt sleep patterns
Provides Vitamin D, regulates sleep
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Economic Consideration

Consumes energy, costs involved
Free, can reduce energy costs
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Environmental Impact

Causes light pollution
Maintains ecological balance
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AL and NL Definitions

AL

Artificial Light (AL) is man-made illumination.
The room was brightened by artificial light from LED lamps.
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Jan 21, 2024

NL

NL indicates any light not produced by human means.
NL in the forest created a serene ambiance.
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Jan 21, 2024

AL

AL refers to any non-natural light source.
Photographers often use artificial light for indoor shoots.
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Jan 21, 2024

NL

NL is the general term for light from natural sources.
Photographers prefer NL for outdoor photo shoots.
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Jan 21, 2024

AL

AL stands for light produced by electrical devices.
AL in the office comes from fluorescent tubes.
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Jan 21, 2024
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NL

Natural Light (NL) is illumination from the sun.
The room was filled with warm natural light in the morning.
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AL

AL signifies lighting that mimics natural light.
AL systems are used in greenhouses to grow plants.
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Jan 21, 2024

NL

NL refers to daylight or sunlight.
NL is crucial for maintaining healthy circadian rhythms.
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Jan 21, 2024

AL

AL encompasses all forms of human-created lighting.
Cities at night are aglow with various forms of artificial light.
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Jan 21, 2024

NL

NL means light from celestial bodies.
The NL from the full moon lit up the path.
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Jan 21, 2024

AL

The Indian mulberry, Morinda citrifolia, especially as used to make dye.
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Jan 14, 2024

AL

All.
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AL

The chemical symbol for aluminum.
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AL

Although; if.
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AL

A silvery ductile metallic element found primarily in bauxite
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AL

A state in the southeastern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War
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Repeatedly Asked Queries

Can AL affect sleep?

Yes, excessive AL, especially blue light, can disrupt sleep patterns.
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Feb 18, 2024

What is AL?

AL is artificial light created by man-made sources like lamps and LEDs.
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Feb 18, 2024

Do plants need AL?

Plants can grow under AL, but they thrive best under NL.
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Is NL important for health?

Yes, NL is essential for Vitamin D production and maintaining circadian rhythms.
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Feb 18, 2024

What is NL?

NL is natural light that comes from the sun, moon, and stars.
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Feb 18, 2024

Can NL be controlled?

NL cannot be controlled like AL and varies with time and weather.
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Does NL have an economic impact?

Yes, utilizing NL can reduce energy costs and consumption.
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Does NL vary throughout the day?

Yes, the intensity and quality of NL change throughout the day.
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How does AL affect the environment?

AL contributes to light pollution and can have negative ecological impacts.
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Is NL always preferable to AL?

While NL has many benefits, AL is necessary in situations where NL is insufficient.
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Is AL more energy-efficient than NL?

AL consumes energy, whereas NL is a free and sustainable light source.
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Can AL be used to mimic NL?

Yes, certain types of AL are designed to mimic the qualities of NL.
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Is there a health risk from using AL?

Prolonged exposure to certain types of AL can strain eyes and affect sleep.
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Feb 18, 2024

How does AL impact energy bills?

Increased use of AL leads to higher energy consumption and costs.
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Can AL be harmful to wildlife?

Yes, AL, especially in urban areas, can disrupt wildlife behaviors.
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Is AL necessary for indoor gardening?

AL is often used in indoor gardening where NL is insufficient.
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Can NL aid in photography?

Yes, NL is often preferred in photography for its natural and flattering qualities.
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Is NL important for architecture?

Yes, architects often design buildings to maximize the use of NL.
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Can NL help in reducing carbon footprint?

Yes, maximizing NL usage reduces dependence on fossil-fuel-based AL, lowering the carbon footprint.
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Does the quality of AL match NL?

While AL has improved significantly, it still differs from the qualities of NL.
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Feb 18, 2024

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About Author
Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

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