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Halogen Bulbs Vs LED Bulbs – Which One is Better? 

Halogen Bulbs Vs LED Bulbs

In 2018, the European Union embarked on a significant initiative, gradually phasing out the use of halogen bulbs. This move was motivated by the recognition that traditional halogen technology, though initially cheaper to purchase, translated into higher long-term operational costs for consumers. The reasoning behind this decision is rooted in the inefficiency of halogen bulbs, which impose a deceptive economy by being inexpensive upfront but more costly to run over their lifespan. As a result, both households and businesses alike have been transitioning towards the adoption of energy-efficient LED bulbs. These LED bulbs, which have rapidly gained traction, are capable of delivering the same quality of illumination as halogen bulbs while consuming a mere fraction – approximately five times less – of the energy. This article dives into a comprehensive exploration of the comparison between halogen bulbs and their LED counterparts, delving into the intricacies of their technologies, benefits, and potential drawbacks. As we delve into this analysis, the aim is to provide valuable insights and guidance to readers seeking to make informed decisions between these two lighting options: the traditional Halogen Bulb and the modern LED Bulb.

Halogen & LED - Energy Consumption

When it comes to choosing the right light bulbs, considering their energy consumption is crucial. In the past, old-fashioned incandescent bulbs gobbled up energy, with a meager 10% efficiency in converting energy into light, while the rest was wasted as heat. The question now arises: how do the more modern halogen bulbs and LED bulbs stack up in terms of energy efficiency?

Halogen Bulbs

Halogen bulbs, though an improvement over incandescent bulbs, still have room for better efficiency. They operate at an energy conversion ratio of 8-to-2, meaning they transform 20% of the energy they consume into light, and the remaining 80% is lost as heat. To put it into perspective, consider a typical 70 Watt halogen bulb; only around 14 Watts of that energy are actually converted into visible light, with the rest dissipating as unwanted heat.

LED Bulbs

The real superstar in energy efficiency, however, is the LED bulb. This technology has revolutionized lighting, boasting an impressive 2-to-8 energy conversion ratio. This signifies that over 80% of the electricity consumed by an LED bulb is harnessed and transformed into usable light. Take a 10 Watt LED bulb as an example: more than 8 Watts are converted into illuminating light energy, making LEDs highly efficient in terms of energy utilization.

Comparing the Two

The disparity in energy efficiency between halogen and LED bulbs is striking. Beyond that, LED bulbs carry an additional advantage over halogens: a smaller carbon footprint. The switch from halogen to LED technology can result in significant environmental gains. In fact, if every household in the UK were to make the transition to LED lighting, the nation could collectively save approximately 1.7 million tonnes of carbon dioxide emissions each year. This translates to about 5 kilograms of CO2 saved per bulb annually, or a remarkable 63 kilograms saved per household.


In the battle of energy efficiency, LED bulbs undoubtedly emerge as the victors, converting more power into usable light while generating less waste in the form of heat. This transformation not only leads to significant energy cost savings for consumers but also contributes substantially to reducing the carbon footprint. Making the switch to LED technology isn't just a bright idea for your home; it's a positive step towards a greener and more sustainable future for the entire country.

Is Halogen or LED More Cost-effective?

Considering the ongoing pursuit of energy efficiency and cost savings, the debate between Halogen and LED bulbs has gained substantial ground. Transitioning an average UK household from Halogen to LED lighting comes at a reasonable upfront cost of approximately £100. However, the real value emerges in the long-term. An LED bulb, with its notably reduced energy consumption, translates to an annual savings of about £40 per bulb. But what does this add up to over the bulb's lifetime? Let's delve into the numbers.

To illustrate, let's compare a 50 Watt Halogen bulb to its efficient counterpart, a 6 Watt LED bulb, emitting the same brightness. By making this switch, households can anticipate substantial savings of around £75 over the LED bulb's lifespan. This financial gain aligns with the broader energy efficiency movement, promoting sustainability without compromising quality of illumination. In this light, LED emerges as the more financially astute choice, helping UK households to illuminate their spaces while lightening the load on their wallets.

Comparing Lifespans: Halogen Bulbs vs. LED Bulbs

When contemplating the transition from traditional halogen bulbs to the more advanced LED bulbs, it's essential to consider the significant discrepancy in their respective lifespans. For households and businesses alike, this disparity carries noteworthy implications. Halogen bulbs, widely known for their familiarity, muster a functional period of approximately 2,000 hours, or roughly two years with standard use. In stark contrast, LED bulbs, emblematic of modern efficiency, offer a remarkably extended lifespan, illuminating spaces for up to 25,000 hours, which equates to an impressive 20 to 25 years. This divergence in longevity is a pivotal aspect to weigh when making an informed choice regarding lighting solutions. The sturdiness of LED bulbs not only reduces the frequency of replacements but also augments sustainability efforts, constituting a substantial stride towards energy-efficient practices. As the illumination landscape evolves, understanding these lifespan disparities empowers consumers to make conscious and judicious decisions that align with both their immediate needs and long-term objectives.


In the ongoing debate between Halogen Bulbs and LED Bulbs, the verdict leans decisively towards the latter as the more advantageous choice. LED bulbs, with their modern technology, stand out as the cost-effective and energy-efficient solution for both residential and commercial settings. Unlike traditional halogen bulbs, LED bulbs shine brightly while consuming significantly less energy, resulting in lower electricity bills and reduced environmental impact. While LED bulbs are compatible with standard light fittings using Bayonet and Edison screw caps, specialized fittings like MR16s, MR11s, and G4s necessitate a driver for the conversion of mains AC to DC before retrofitting. It's noteworthy that for those looking to create the perfect ambiance, dimmable LED bulbs are the way to go, ideally paired with LED dimmer switches for optimal control. This modern lighting solution not only saves money and energy but also offers a longer lifespan, reducing the frequency of replacements. As the world embraces sustainable practices, LED bulbs emerge as the beacon of efficient illumination, leaving halogen bulbs in the shadow of outdated technology.


About Gilbert

Our email: [email protected] Dear readers of Kosoom.uk! I am delighted to introduce myself as Gilbert, your dedicated source of enlightenment when it comes to LED lights. If you have questions about any LED lights, please feel free to contact us to our email: [email protected] We will give you a satisfactory answer as soon as possible. Hailing from the heart of England, I bring to you a wealth of professional expertise and a passion for all things LED. As an Englishman with a fervent interest in illumination technology, I have made it my mission to illuminate the path to understanding LED lights, tailored especially for the inquisitive minds of Britain. With a background steeped in the intricacies of LED technology, I stand ready to shed light on every facet of this brilliant innovation. Through my articles, I intend to guide you through the captivating world of LED lights, providing you with insights that not only unravel the science behind these luminous marvels but also highlight their practical applications and benefits in the UK context. In collaboration with Kosoom, I embark on this journey to demystify LED lights for you. Whether you're curious about the evolution of LED technology, eager to decipher the nuances of LED color temperatures, or seeking advice on optimizing lighting choices for your home, workplace, or public spaces, I am your trusted companion. My articles will offer you clear, concise, and expertly-crafted explanations that bridge the gap between complex technical jargon and approachable, relatable understanding. Stay tuned for a series of articles that will not only elevate your understanding but also brighten up your perspectives on the art and science of lighting.

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