These bulbs light up when an electric current is passed through a tube containing a gas called argon and a tiny amount of mercury vapor. Related: Electricity basics: Resistance, inductance and capacitance They can last for around 8,000 hours - 50 times longer than an incandescent bulb – making them much more efficient and cost-effective. They were the first truly energy efficient bulbs available to everyday consumers and used between 70% and 80% less energy than a traditional bulb, according to the Energy Saving Trust. In 1976 we saw compact fluorescent lamps (CFLs) emerge, according to the Edison Tech Center. The production and importation of directional mains-voltage halogen bulbs was also banned in the United Kingdom in September 2021, according to the UK government. Back in 2009 the European Union began to phase out inefficient light bulbs, including halogen bulbs, according to The European Consumer organisation. This all makes them a little bit more efficient, but far from perfect. It then deposits it back onto the filament instead of on the inside of the bulb, meaning it can shine more brightly and extends the bulb's lifespan. Halogen bulbs are similar to incandescent bulbs but contain a small amount of halogen gas which mixes with tungsten vapor. They use the same filament technology as traditional bulbs but have some important differences. One of the first was the halogen bulb developed in 1955, according to the Edison Tech Center. (Image credit: Getty Images)Ĭertain types of energy saving light bulbs have actually been around for decades. A energy saving compact fluorescent lamp (CFL) light bulb surrounding by traditional incandescent light bulbs.
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