The most inefficient light bulbs are being sold as ‘eco’ by major brands across Europe, an investigation by Coolproducts has found, just as the UN launches the International Year of Light and Light-based Technologies.

Halogen bulbs are 10 times more wasteful than today’s best real eco alternatives according to the latest research, earning them a typical EU energy label grade of D or C, compared to an A++ for the best LED bulbs. Using halogens will typically drive up energy bills by £35 per year compared to true eco alternatives, according to UK experts.

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With the support of thr European Union (LIFE Programme and European COmmission). This work reflects the author's views and does not commit donors.