If we were still living in an era where fire was the primary source of lighting, how would it be? Imagine how inconvenient it would be to work without a desk lamp to help you do your job efficiently and comfortably, or how dangerous it would be for street lamps to fail to illuminate the dark alleys.
With the advancement of technology, the lighting industry has also developed. As a result, we can enjoy the benefits of artificial lighting in the most convenient way. Before the emergence of LED lighting, what were the lighting solutions? How did they evolve?
The Incandescent Lamp Era: A Revolutionary Era
Nowadays, you might think that incandescent lamps are nothing special. However, in 1987, Thomas Edison invented the first practical incandescent lamp, which sparked a lot of discussion! Since then, numerous inventions have incorporated this lighting solution, leading to even more remarkable discoveries.
When an electric current passes through a thin wire called the filament, a light bulb will operate, heating the filament and causing it to emit light.
The filament is usually made of tungsten, which is a metal with a high resistance. It is encapsulated in a transparent or inert gas-filled glass bulb to prevent oxidation. The wires or terminals embedded in the glass conduct the current to the filament. Due to the high resistance of the filament, it will emit light or heat up.
Unfortunately, incandescent lamps have many drawbacks. They have low efficiency, short lifespan and high heat generation. Therefore, people have been constantly exploring ways to improve this technology, eventually giving rise to better alternatives!
Advances in the lighting field: Halogen lamps, energy-saving lamps and fluorescent lamps
What came after incandescent lamps? Before energy-saving LED lamps, halogen lamps, CFLs and fluorescent lamps brought light to commercial and residential spaces, what were they?
Halogen lamp
Its working principle is similar to that of incandescent lamps, which operates by heating the filament. However, halogen bulbs contain halogen gas, thus extending their lifespan slightly.
Compact Fluorescent Lamp (CFL)
It is a more compact version of fluorescent tubes. CFL is more energy-efficient than halogen lamps, but has a slightly longer preheating time.
Fluorescent lamp
A tubular light bulb that emits light through gas discharge and phosphor coating. It is the most efficient among the three types of lamps.
Generally speaking, halogen lamps and incandescent lamps are almost the same, both emitting light by heating the filament. While energy-saving lamps and fluorescent lamps employ different technologies, using gas discharge to excite the phosphor coating.
Although halogen lamps, energy-saving lamps and fluorescent lamps outperform incandescent lamps in terms of efficiency, lifespan and heat generation, they still have some drawbacks. All fluorescent lamps contain mercury, which is harmful to both humans and the environment. Moreover, the brightness of halogen lamps decreases rapidly, resulting in more waste being landfilled.
The rise of LED technology: The new era of lighting
After years of research, hard work and numerous trials and errors, LED technology finally came into being!
When current passes through a microchip, light-emitting diodes (LEDs) will emit light. As the current flows, electrons in the semiconductor recombine with holes. The combined electrons and holes release energy in the form of photons. The color of the light depends on the energy required for the electrons to pass through the semiconductor band gap.
Initially, LED bulbs were not popular in the market due to their high price and low brightness. However, they have continued to evolve and ushered in a new era of lighting! Nowadays, LED lighting is more affordable and offers various color temperatures, unique features, excellent designs, and so on. Moreover, LED lighting has a longer lifespan (approximately 50,000 hours) and is more energy-efficient (about 80% more energy-efficient than incandescent bulbs).
Today's LED Lighting: Why It's the Best Choice
Among incandescent lamps, halogen lamps, energy-saving lamps, fluorescent lamps and LED lamps, why should one choose LED? There are three reasons: positive environmental impact, better cost savings, and innovation!
With the help of LED technology, you can significantly reduce your carbon footprint. Less energy usage means less burning of fossil fuels, and longer lifespan means less waste. Moreover, LED bulbs do not contain toxic substances such as mercury!
As mentioned above, LED has low power consumption and a long lifespan. Therefore, your electricity bills and maintenance costs will decrease, resulting in greater savings! Moreover, LED lighting offers exponential growth opportunities. Now, you can find smart LED lighting, adjustable color temperature, RGB + WW color temperature, automatic home integration, etc.
Conclusion
What if the incandescent light bulb was invented and then discontinued? How would our lives be today? Fortunately, the incandescent light bulb did not bring an end to our lives. Many other inventions followed. This has enabled us and future generations to experience energy-efficient lighting!
Therefore, to fully enjoy the outstanding advantages of LED, please visit our website "Benwei Lighting".For more details about our offerings, please contact us at bwzm18@ledbenweilighting.com.
