What are the consequences of LED lighting technology?

Let's talk about LED and solid state lighting technology! Humans have entered the era of LED lighting technology from candlelights, gas lamps, incandescent bulbs, and fluorescent lamps; driving this evolution is the LED's advantage in energy conversion efficiency, and its energy saved in the past was in the form of heat. "Waste" is gone. Cost-effectiveness is also one of the reasons why LED lighting is favored, and its service life can be much longer than that of incandescent bulbs.

The advantages of solid-state lighting are often introduced as follows: the same brightness can be achieved with less energy consumption than incandescent lamps; this is good news for housewives/masters, and for the planet. This kind of feature may not be good news for energy suppliers (electric power companies)... just not many people will care? What the author wants to discuss is a question that will happen -- or is already happening --.

Because the use of solid-state lighting technology can save power and save money, families, businesses and local/central public agencies around the world will consider installing more lighting, especially in outdoor locations – because they can Perform day/night switch control.

So in fact, all of us together may save some money and some energy, but we can enjoy more lighting all day and night in our daily life. Such results should be quite good for energy suppliers, but not so good for humans or the planet, and even worse for astronomers who want to observe the stars in a completely light-free environment.

I don't mean that LED lighting can't save more energy than the past lighting technology, nor does it mean that we should not adopt this new technology; it can achieve higher energy efficiency, it should be adopted, and it will be A lot of adoption. But at the same time, it is necessary to take appropriate control measures to avoid waste of energy and unnecessary light damage.

Putting a small corridor light at your doorstep may be a manifestation of basic human rights, but from another perspective, you may be a "dark killer" or bring light to the surrounding environment. This "law of unpredictable consequences" reminds me of what the transistor co-inventor Walter Brattain said.

When Brattain retired from Bell Labs and returned to Walla Walla in Washington State to teach at his alma mater, Whitman College, he said that one of the things that invented the transistor to regret him was the birth of a transistor radio. This kind of product makes the noisy rock music appear all the time in the campus.

Is LED lighting likely to be like a transistor radio that brings noisy noise to Brattain, and it can cause some unpredictable problems for humans?