In the morning, when the first ray of sunlight shines on the earth, a special “street light” has begun its day’s work. They are not ordinary lights, but solar street lights that “eat sunlight”. Today, let us explore the mystery of these modern “messengers of light” together.
1. “Daily Life” of Solar Street Lights
These street lights have a regular life every day:
6 am: With the sunrise, they will automatically “wake up” and start to absorb sunlight
12 noon: When the sunlight is the strongest, they “eat” the most happily
6 pm: As the sky gets darker, they start to “spit out” the stored light
12 midnight: When there are few pedestrians, they will dim the lights to save energy
2. “Internal organs” of street lights
Don’t be fooled by its simple appearance, it is a high-tech universe inside:
Photovoltaic panel: It is equivalent to its “mouth”, which is specially used to eat sunlight
Battery: It is its “stomach”, which can store 3-5 days of energy
LED lamp beads: Its “light-emitting organ”, which saves 80% energy than ordinary light bulbs
Smart Energy controller: equivalent to the “brain”, controlling the switch and brightness
3.three numbers that will surprise you
1.5 hours: On a sunny day, as long as you get 1.5 hours of sunlight, it will be bright enough for the whole night
10 years: The lifespan of a high-quality solar street light is longer than that of many pets
80%: The proportion of electricity saved compared to traditional street lights
4. the “Transformers” in the street light industry
Today’s solar street lights are so smart:
Can “see the sky” and automatically switch on and off
Can sense pedestrians and automatically adjust the brightness
Automatically save energy when encountering cloudy and rainy days
Some can also charge mobile phones
5.they have changed these places
In the mountainous areas of Yunnan, children are no longer afraid of walking at night; in Hainan fishing villages, the elderly like to chat under the lights; in urban parks, night runners have safe companions. These changes all come from this magical street light that “eats the sun”.
6. Cold knowledge you may not know
The earliest solar technology used for street lights came from aerospace technology
The Arctic research station also uses special cold-resistant solar street lights
The carbon emissions reduced by one lamp each year are equivalent to planting 4 trees
When night falls, when you see these quietly glowing street lights, think about it: they are turning the sunlight of the day into the warmth of the night. This is probably the most beautiful form of technology – lighting up life with wisdom and making the light never stop.
Next time you take a walk, you can look for the solar LED street lighting around you and see if their “small solar panels” are facing south (in the northern hemisphere, this can absorb more sunlight)!
Post time: Jul-03-2025