incredible! Hong Kong PolyU develops more energy-efficient LED lights

The Hong Kong Polytechnic University announced on the 8th that the school's State Key Laboratory of Ultra-precision Machining Technology and the student research team have successfully developed a more energy-efficient LED (light-emitting diode) filament technology, which is about 1.5 times brighter than conventional LED lamps. More energy efficient than current general lighting products on the market. According to reports, based on 8 hours of use per day, this filament bulb requires only 33 Hong Kong dollars per year and carbon emissions of 22 kg of CO2e. With the same luminosity and the same usage time, the traditional LED lamp has an annual electricity bill of HK$47 and a carbon emission of 31 kg CO2e, so the new technology can reduce carbon emissions by 30%. In addition, Hong Kong PolyU's LED filament bulbs have an estimated life expectancy of 50,000 hours, while production costs are only half that of conventional LED lamps. Researchers pointed out that in addition to breakthroughs in energy efficiency, longevity and production costs, other advantages of LED filament technology developed by Hong Kong PolyU include: wide illumination angle, 300 degrees coverage with tungsten light bulbs; high color rendering index The color rendering index close to daylight makes the object appear under natural light; the emitted ultraviolet light is low; it contains no harmful chemicals, and uses less electronic components, and the recycled materials reach 80%. According to reports, the PolyU Microfinance Fund allocated HK$100,000 to the student team for the study in 2015. The team expects the products to be launched this year.

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