FEATURE OPTOELECTRONICS
LED LIGHTING GETS THE green light for efficiency
for customers looking for an energy- saving and better performing alternative for existing or new lighting systems. The company’s LED luminaires have a service life of over 50,000 hours – that adds up to six years of continuous operation or 25 years with 250 eight-hour working days. LEDs work for up to 50 times longer than incandescent lamps. This extremely long service life minimises maintenance costs. LEDs‘ high vibration resistance also helps to extend their service life. Conventional lamps service life decreases when frequent switching occurs. Whereas LEDs are perfect for lighting controls: The service life will always be the same, no matter how often they are turned on and off.
Anne Schilling, Marketing and Communications Manager at Sharp LED Lighting Europe, discusses the energy saving benefits of LED technology and how the company is addressing industry demand
L
ED technology is at an exciting tipping point where efficiency is increasing
steadily and the investment becomes more and more interesting across all applications. There are various LED construction types and compact design is crucial to this. LED chips with less than 2mm height
enable completely new possibilities for the product design of luminaires and thereby as well for the lighting design. An example of this is Sharp Lighting Europe’s high- powered Zenigata LED modules which deliver high luminous flux, efficiency, reliability, and radiation performance. Their light output is the largest of the company’s LED families, with power and efficiency that makes them a perfect choice for applications that depend upon power and broad coverage. Due to its high energy efficiency, LED
technology conserves natural resources and thereby significantly contributes to the reduction of the carbon footprint. No mercury is used for LEDs and LEDs do not produce UV or infrared radiation.
OPTIMAL LIGHTING DESIGN LEDs have many advantages in lighting design compared to other light sources. White and coloured light can be generated and the correlated colour temperature of white LEDs is variable
18 SEPTEMBER 2014 | ELECTRONICS
from warm white to daylight white. In addition to their correlated colour
temperature, Sharp LEDs also achieve a high Colour Rendering Index. A high CRI is beneficial e.g. for the natural rendering of surfaces, skin or textiles. Sunlight encompasses a colour rendering up to 100 percent. Currently, the company’s LED chips achieve up to 93 CRI, which is more than most other lighting technologies. Further advantages of LEDs are their
ability to direct light very efficiently and provide their maximum luminous flux immediately after being switched on. High quality LED luminaires can guarantee high visual comfort.
“LED chips with less than 2mm height enable completely new
HIGH OPERATING EFFICIENCY The high operating efficiency of LED lighting such as those of Sharp is a result of high system efficiency (lm/W), long service life and thereby low installation and maintenance costs. Lighting control systems and intelligent integration of lighting technology in spaces promise further possible savings. The company’s entry into the market will make LED lighting even more interesting
HAYU dowlight from Sharp
possibilities for the product design of luminaires and thereby as well for the lighting design . . .”
HIGH ENERGY EFFICIENCY Compared to other light sources, LED technology is already very efficient and has great potential for further improvement of lighting efficiency (lm/W). Compare the energy conversion of incandescent lamps with that of LEDs and the difference becomes even clearer. With incandescent lamps only 5 percent of energy is converted to light; with LEDs, this rises up to 40 percent. The comparatively high investment costs of LED luminaries usually amortize over their service life. A recent report from Luxi has seen that the development of the marker has helped propel the market for LED-based luminaires to some $25 billion in 2023, up more than a factor of 12 from today’s figure of $2 billion and equivalent to a compound annual growth rate (CAGR) of 25 per cent. Addressing this demand Sharp has recently launched five product families and over 46 lighting products for retail and industrial spaces in Europe. One fifth of all energy generated worldwide is used for artificial light.
Replacing conventional lighting products with LED technology using
intelligent lighting management can reduce the amount of energy consumed by lighting products by 70 percent*.
*
www.licht.de, licht.wissen 17
Sharp Lighting Europe
www.sharpleds.com +49 40 2376 2264
Enter 205 / ELECTRONICS
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