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2007
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- Congress established the first national light bulb efficiency standards in 2007, which were signed into law by President George W. Bush. Starting in 2012, the law required new light bulbs to use 28 percent less power than existing incandescent lights — essentially ending the sale of the older, inefficient bulbs.
www.nytimes.com/interactive/2019/03/08/climate/light-bulb-efficiency.html
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Jan 28, 2020 · Traditional incandescent light bulbs are being phased out around the world and replaced by more energy-efficient halogen, LED and OLED alternatives—all producing more light for less energy input.
- The Beginning of Light Bulbs
- Halogen Light Bulbs
- Compact Fluorescent Lamps
- Led Lighting
Traditional, or incandescent light bulbs were invented over 100 years ago in 1879. These were extremely inefficient, with only 5% of the electricity being converted into visible light. Although a fantastic invention, we soon began to realise incandescent bulbs were just not sustainable enough – we needed more efficiency.
The next big launch into the lighting market was the halogen bulb. These were developed by Elmer Fridrich and Emmet Wiley in 1955and used the same filament technology as traditional bulbs but run at higher temperature, making them slightly more efficient. However, this wasn’t enough, and inventors continued to work on their ideas in order to bring ...
Before the phase out of halogen bulbs though, compact fluorescent lamps were brought to market. by Edward E. Hammer in 1976. These were the first energy efficient bulbs on the market, using around 70-80% less electricity than equivalent traditional light bulbs. CFLs typically last for around 8,000 hours of use, which is approximately 50 times longe...
Due to a massive difference in energy consumption, LEDs have become the most popular, and simply the go-to choice in almost every lighting scenario. Surprisingly, LEDs were first invented in 1927, but have been developing ever since. 2002 saw the first real adoption of LEDs for residential use as they become commercially available for approximately...
Nov 22, 2013 · In 1913, Irving Langmuir figured out that placing an inert gas like nitrogen inside the bulb doubled its efficiency. Scientists continued to make improvements over the next 40 years that reduced the cost and increased the efficiency of the incandescent bulb.
Mar 21, 2024 · In 1911, the introduction of tungsten filaments significantly improved the lifespan and efficiency of incandescent light bulbs. Throughout history, the quest for efficient and reliable illumination has driven technological advancements.
The rapid proliferation of LEDs is already having a marked impact on the total energy consumed by home lighting, which fell by 22 per cent between 2000 and 2012. As LEDs grab more market share, Oxford University research fellow Dr. Brenda Boardman believes this could fall by a further 90 per cent.
Jul 19, 2023 · By the 2010s and into the 2020s, LED lights became the standard for most home lighting in the UK. With their efficiency and lifespan far surpassing other types of lighting, and a drop in prices due to improved manufacturing techniques, LEDs became the logical choice for most homeowners.
Slowly over the 20th century, the lightbulb developed to become more efficient. With the creation of fluorescent bulbs, a single lightbulb could last for over 10 years of regular use. Although more efficient bulbs were invented, it wasn’t until the development of LEDs that lighting could be produced easily and effectively for all uses.
