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Philips claims world's most efficient lamp

The Philips TLED prototype

Coen Liedenbaum shows the Philips TLED prototype

Philips is claiming that it has created the world’s most energy-efficient warm white LED lamp for general lighting applications. Researchers at the company have developed a tube lighting (TL) replacement prototype that produces 200 lumens per watt of white light.

Until now, similar efficiency levels have been achieved in a cool and controlled lab setting or at a component level but when placing the solution in a lamp it could lose up to 50 per cent of its efficiency. Similarly, yellow/green emitting LEDs obtained by phosphor conversion are extremely energy efficient (providing more than 380lm/W), but practically useless for general lighting purposes. The reason Philips is so pleased with the performance of the latest prototype is because it produces 200 lm/W without scarifying the colour rendering index and staying on the black body line.

At the heart of this TLED is Philips Lumileds InGaN LED, recognised as a high-performing blue LED. The product combines blue, green and red light to create a white light with a CRI of greater than 80 and a CCT of 3000K to 4500K.

“This again is a major breakthrough in LED lighting and will further drive the transformation of the lighting industry,” explains Rene van Schooten, CEO Light Sources & Electronics for Philips Lighting.

The 200lm/W TLED lamp is expected to hit the market in 2015 for office and industry applications before ultimately being used in the home. Philips hopes it will be the product that finally unseats fluorescent lighting as the most energy-efficient technology for general lighting applications.

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