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The “L Prize†competition was established by the US Department of Energy in 2008 and is the first government-sponsored technology project to promote the development of ultra-high-efficiency solid-state lighting products to replace traditional lighting sources. One of the big challenges is to develop an alternative to 60W incandescent bulbs. In 2009, Philips Lighting submitted its LED light source based on industry-leading LUXEON LED technology to the US Department of Energy. The product is the industry's first and only LED light source to successfully complete rigorous field, laboratory and product testing for 18 months; it fully meets or exceeds the assessment criteria of the “super†light source established by the US Department of Energy. A new level of standard has been achieved in terms of efficiency and performance.
Zia Eftekhar, CEO of Philips Lighting North America, said: "We will participate in the 'L Prize' as a rare opportunity for innovation - to develop energy efficient lighting products to replace the traditional light source that has not undergone significant changes for more than a century. Successful completion of 18 months of rigorous product testing not only demonstrates Philips' commitment to innovation and product quality, but also demonstrates our ability to enhance people's quality of life through meaningful leading technologies."
Creating an ideal light source that can replace traditional incandescent bulbs and mass production requires overcoming the many challenges of integrating innovative technologies. Although LEDs are very energy efficient sources, even the most energy efficient LEDs generate a lot of heat. In addition, there are still many problems to be solved in order to enable the LED light source to emit perfect warm white light from all directions, and to have a long service life and dimming function. Therefore, Philips Lighting has built an innovative team of more than 120 engineers, technology and lighting experts from different parts of the world (including experts from more than 10 regions such as Eindhoven and Shanghai) to work together to achieve a common leap LED technology is difficult.
Through the team's concerted efforts, the entire development process of the new light source took only 9 months. As the industry's first LED light source that produces more than 900 lumens of light energy at less than 10W, this product can save a lot of energy and is environmentally friendly while ensuring the same luminous quality as traditional incandescent lamps. The successful development of this product is a strong proof that Philips Lighting is accelerating innovation and bringing innovations to the market faster, better and more flexibly.
The US Department of Energy has placed extremely stringent requirements on the "L Prize" entry:
• Light efficiency must be above 90 lumens per watt, which exceeds the efficiency of today's all incandescent sources and most compact fluorescent sources (approximately 10 to 60 lumens per watt)
• Energy consumption must be less than 10W compared to 60W incandescent bulbs
• The output must be 900 lumens or more, equivalent to a 60W incandescent bulb. • The service life must be 25,000 hours or more, 25 times that of an ordinary incandescent bulb. • The color rendering (CRI) needs to be 90 or more. This is a strict measure of lighting quality. Standard • Color temperature range must be between 2700 and 3000 Kelvin, ie “warm†white light 
Philips Lighting won the US Department of Energy's highest honor "L Prize"
Philips Lighting announced that it has won the US Department of Energy (DOE) High Honor “L Prize†competition award in recognition of the company's first successful development of an alternative LED light source for 60W incandescent bulbs.