Current Size: 80%
It's reported that semiconductor manufacturing equipment vendor Aixtron has achieved double-digit revenue growth in its Q2, despite currency and macro-economic headwind,
The company which in the first place sells machinery for the production of LEDs raised its sales in the second quarter to €65.6 million, a growth of 45 percent against the same quarter last year. Operating profit almost tripled to €8.9 million from €3.2 million last year. The gross margin, however, declined slightly to 39 percent of sales from 40 percent. Order intake rose 44 percent to €72.5 million.
It’s reported that Sharp is introducing 6 new downlights and 5 new oblong/square energy-efficient LED fixtures for factories, offices, and commercial spaces to the Japanese market.
Sharp Corp. has developed a series of 11 new LED lights and will introduce them into the Japanese market on September 1. Four of the lights are oblong overheads with brightness equivalent to the fluorescent lamp fixtures currently in factories, offices and commercial spaces.One of the lights is a square overhead for use in conference rooms and similar spaces. The six remaining lights are circular downlights, three of which have a brightness equivalent to a standard 150W incandescent lamp.
LED lighting manufactured by Sharp will be adopted as the main lighting in all plants to be located within the company's "Manufacturing Complex for the 21st Century." This is now under construction in Sakai City, Osaka Prefecture, and is scheduled to begin operations by March 2010. The company says this will represent the world's largest collection of LED lighting installed in buildings on this scale.
These LED lights offer excellent heat dissipation capacity based on configuring the low-power LED in a uniformly spaced array. This arrangement minimizes deterioration in light output resulting from LED-generated heat and ensures a consistent, ample level of illumination. As a result, these units have design product life of 40,000 hours, and can be expected to remain in operation for 10 years or longer, even when lit for 10 hours per day. They are good in locations that require lights to remain on for long periods, or where lamp replacement is difficult such as high places and multi-story open spaces like stairwells and foyers.
Recently, component distributors are retooling their operations to help rewire buildings to take advantage of its energy-saving capabilities because of advances in LED technology push it into the commercial realm,
Electronic component distributor Avnet Inc. has committed new resources to the emerging "illumination market" with the creation of an engineering team that helps businesses rewire their offices and operations for LED lighting.
Dave Neal, an Avnet illumination engineer and head of the distributor's team of "illumineers." said most of Avnet's lighting customers want to buy LED lighting and subassemblies, but don't know what infrastructure is needed and how to get it built. His team of illumineers consult with customers about their requirements, then design a solution that starts with the LED light fixture all the way to the power supply and wiring. Avnet engineers select the appropriate materials and always look for ways to dissipate heat.
High-powered, pure-white LEDs are the primary focus of Avnet's engineering effort for applications like machine vision and inspection systems. Hotels and casinos are also integrating LEDs into their operations to save on energy costs. Outdoor lighting is another growing application since LED lighting can be better controlled than current lighting systems and is more energy efficient when operating over long periods of time.
The company won't say how many engineers are working on the LED supply chain and design effort, but Neal called it a small but growing part of the distributor's business. For now, they are focusing on industrial and commercial customers. While LED lighting may find its way into kitchen work areas, for example, at least for now, the residential market for LEDs is "a little bit of a long throw."
LED fluorescent lamp is the newest product line in the fluorescent family and is considered to be the final replacement for traditional fluorescent lamp. It is made up of white LED chip modules. Provided with the advantages of long life-span, radiation-free, energy saving, environmental friendly and stroboflash-free, LED fluorescent lamp is superior to other kinds of lamps.
Besides, the installation of LED fluorescent lamp is quite easy. Just to replace the original fluorescent lamp with the new LED one, and to take out the starter. What’s more, the electricity saving efficiency can reach as high as 50% compared to ordinary fluorescent lamp and the life span is more than 10 times than that of ordinary one, almost totally free of maintenance. LED fluorescent lamp is adaptive to be used in offices, factories, marketplaces, schools and houses and so on indoor spaces.
The following passages are going to sum up the advantages of LED fluorescent lamp.
1. Environmental friendly
Traditional fluorescent lamp contains large amount of mercury vapor which will do harm to the environment if the lamp is broken up and the vapor volatilize into the atmosphere. On the contrary, LED fluorescent lamp does not contain mercury or lead, doing no harm to the environment. So, LED products are recognized to be the green lighting lamps in the 21st century.
2. Low heat
Compared to traditional lamps which will generate a large amount of heat, LED lamps can directly make electric energy into light energy, causing less heat and no waste of the energy.
3. Noise-free
LED lamp will not produce any noise, enabling it to be a good choice for illumination application in high precision electrical instrument. It is also fit to be used in occasions like libraries, offices and so on.
4. Soft light beams and stroboflash-free
Traditional fluorescent lamp uses alternating current, which will generate 100-120 times of stroboflash per second. As to LED fluorescent lamp, it can directly switch the alternating current into direct current, without causing any flickering, helpful to protect the eyes.
5. Free of ultraviolet radiation
Traditional lamps will generate ultraviolet radiation, thus will attract mosquitoes to fly around the lamps. LED lamp doesn’t have this disadvantage, thus the indoor space will become cleaner.
6. Wide-range of adjustable voltage
Traditional fluorescent lamp should recur to rectifier to release high voltage to get brighten up. If the voltage fell, the lamp will went out. However, LED lamps can be lighted within a certain voltage range (80V-245V) and its brightness can be adjusted.
7. Energy-saving, long life-span and low cost
The power consumption for LED fluorescent lamp is lower than 1/3 of the traditional lamp’s consumption, and the life span for it is 10 times longer than that of traditional one. So there is no need to change the lamp for a long period of time, reducing the manpower and other costs.
8. Rigid and safe
LED lamp body is made by epoxy resin instead of glasses like other traditional lamps. So it is more rigid and safe. Even if falling to the floor, LED lamp will not be broken easily. Users can set their heart at rest when using LED lamps.
Taiwan LED maker NeoPac Lighting has received LED MR16 orders for use in temples in Kyoto Japan, and the company estimates it will start volume shipments in the fourth quarter of this year or the first quarter in 2009. The MR16 is an indoor-use 7.5-watt LED light bulb, which can replace traditional 50-watt light bulbs.
It’s reported that Harvatek Inc., a Taiwan supplier of SMT chip LEDs, scored net profits of NT$0.9 per share for the first half of this year to be the No.2 supplier of this kind on the island, with increasing sales of its LED applications for notebook PCs.
Besides, Harvatek posted July revenue of about NT$250 million, sharply up 25% from a month earlier. The company is even expected to see a double-digit growth in its third-quarter revenue, due partly to a seasonal boom and partly to growing orders for its LEDs used in notebook PCs.
Harvatek posted net profits of NT$0.58 per share and a gross profit rate of 29% in the first quarter of this year, and the company optimistically projects its second-quarter gross profit rate to be maintained at over 20%.
Recently, Harvatek has tried to shift its focus to sales of LEDs applied in notebook PCs from models for mobile phones, and thus landed quite a few orders for blue and white LEDs used in keyboards of notebook PCs. an LED keyboard is an increasingly popular application for LED for notebook PCs, the product will most likely be the main driver of growth for Harvatek`s business operations in the future. At the moment, the company`s sales of this kind contribute 10% to the total, and are expected to further surge in the third quarter.
Recently, Cree Inc., a market leader in LED lighting, announces a new standard for lighting-class LEDs with the introduction of the XLamp(r) XP-E and XP-C LEDs. The XLamp XP-E and XP-C LEDs are available to order with standard lead times.
These breakthrough LEDs have the smallest footprint in the industry for lighting-class LEDs -- providing the same high-quality lighting performance and proven reliability as Cree XR-E and XR-C LEDs in an 80-percent smaller package. Thanks to their small size and low profile as well as a wide viewing angle and symmetrical package, the new XLamp LEDs, measuring just 3.45 mm square by 2 mm high, can enable new applications, including backlighting, signage, outdoor, indoor and portable lighting. Available bins for XLamp XP-E LEDs include minimums of 100 lumens at 350 mA in cool white and 80.6 lumens at 350 mA in warm white.
An unmet need for lighting-class performance in a small-footprint, low-profile LED package. These products, address this need, based on an innovative new technology platform, the new platform, in concert with the existing XLamp products and the recently demonstrated XLamp MC-E LED, give LED lighting designers enhanced flexibility and performance to further accelerate the LED lighting revolution.
Edison Opto, a Taiwan based high power LED packaging manufacture, has introduced its popular product, 20Watt EdiPower. The device is measured at 14.5mm x 14.5mm x 0.7mm, with luminous flux of 1,000 lumens for cool white LED (CCT:5,000~10,000K), and 780 lumens for neutral white LED (CCT:3,800~5,000K), and 620 lumens for warm white LED (CCT:2,670~3,800K) at a drive current of 1,400mA.
The circuit design is a 4 parallel 4 series connection, and the operating voltage is approximately 12.0~15.6V. The thermal resistance of EdiPower is 2 °C/Watt; with applicable heat dissipation, the lifespan is expected to exceed 20,000 hours (Tj=105℃). EdiPower are available in cool white, neutral white, warm white, blue, green, amber, red color, and high CRI(color rendering index) series.
The multi-chip ultra high power EdiPower Series deliver never before seen luminous flux output from a single emitter. The superficial illuminating nature of EdiPower makes them the preference in task lighting, high specification down lighting, street lighting, PAR20~38 LED Lamp Series , projector, spot lighting ,and high profile architectural lighting.
Assembly & Soldering
We suggested using EdiPower with Star (ALPCB) will be easier to apply in lighting applications. The EdiPower with Star can use M3 screws to fix on the heatsink or other metal utilities. It’s strongly recommended using thermal grease between Star and heatsinks.
An effective thermal design relies on heat conduction and dissipation. The conduction path which heat travels is dependant on material properties while dissipation depends heavily on the surface area of the heatsink.
Therefore, it is important to provide a fast heat conduction path for the LEDs by reducing the contact resistance between the interfaces. One common method is applying thermal grease. Thermal grease is also known as gap filler; its main purpose is to provide a direct thermal path from heat source to heatsink device.
Recently, China Display Technologies Inc. has formed a technical team to work in conjunction with the Guangdong Flat Panel Industry Association, a semi-governmental institution involved in drafting the standards for the high power LED lighting industry in China.
China Display will be one of the core technical advisory committee members for the association and will provide practical and procedural consultative comments to develop the standards for the high power LED lighting industry in China. The association aims to standardize the various technologies and know-how for high power LED packaging, production and application.
Taiwan LED packaging company Unity Opto's July revenues were NT$236 million (US$7.7 million), up 23.7% from NT$191 million in June. Meanwhile, Bright LED has posted July revenues of NT$329.8 million, a 2.3% growth sequentially and 2.5% growth on year, according to data available from the Taiwan Stock Exchange (TSE).
GlacialTech Inc today announces the availability of BR40 Light Emitting Diode (LED) light – the LED-BR40 Globes come in three model which range in brightness from low, to medium to high. The LED BR40 bulbs are designed to replace the equivalent 80W BR40 globes and lamps available in markets today. Using lower wattage compared with the original product, 840Lux for the high brightness globe at a distance of 1m. The innovative product incorporates the same structure and style of traditional BR40 bulbs but delivers a brighter performance per watt, with less heat radiation. The LED BR40 Globe can be used for general everyday use, and incorporates all the latest luminary technology garnered from GlacialTech’s unique resources; combining years of experience in designing cooling systems as well as all manner of consumer electronic device power supplies.
Low power consumption; high brightness with long life
GlacialTech LED-BR40 luminary uses Super High-brightness LED emitters that consume just18.6Watts in the high brightness bulb. As a result, the LED-BR40 luminary is much cooler within a range of -20 to +50⁰C with a 112% more advanced conversion of energy to light. The LED-BR40 globe, using a fraction of the power, is a safe, environmentally friendly solution which reduces global emissions through reduced power consumption. The efficient cooling structure of the heatsink is optimally designed to keep the >50000hr longevity of the device intact, while maintaining full brightness for longer.
Specifications
Accepting an Input voltage of 110V (AC), an Input current to 0.3A for high brightness LED bulb. The diameter of 127mm, a length of 165mm, and a weight of 0.3kgs means the LED-BR40 lamp can replace any traditional BR40 bulb product.
GlacialLight
GlacialLight, the new sub-brand of GlacialTech will leverage the GlacialLight products to be better and higher in quality than competing products using high quality heatsinks, specialized power units and Light Emitting Diode (LED) luminaries, giving them longer life (in some cases excess of 50 000hrs) with higher lumen throughout the lifecycle.
Wide product range under development
GlacialTech is developing a comprehensive range of products under the GlacialLight brand, stretching from street lighting solutions to all forms of industrial lighting and architectural lighting. The products on offer and in development include serious product enhancements over the current range of competing products available on the market, such as MR16 / PAR30 / PAR38 / BR30 / BR40 / T8 Tubes and Spotlights as well as an innovative and unique types of Torches and Bicycle lamps designed with multi-functionality as the key ingredients. These LED products will retain the customary shape and design of standard globes to allow easy replacement of legacy products. The product line is quite extensive and includes replacements for standard light bulbs and tubes for homes and offices.
Experienced electronics manufacturer
To ensure the best performance and long life time of LED luminary products requires efficient and consistent cooling of the LED, with a durable high quality power supply. As experienced manufacturer of PC cooling and power supplies GlacialLight has leveraged the resources required to create quality LED lighting products combining the exemplary cooling capabilities with durable power unit designs to create optimal solutions for the most demanding of lighting products.
Advantages of LED compared to traditional lighting
LED lights offer the following advantages and benefits compared to traditional globes (Filament) and compact fluorescent Lamp (CFL) products, such as directional lighting, which is ideal for torches (Flashlights) and spotlights. There are no starting problems in cold environments because LED’s are “Instant on” with no warm up time needed as seen in conventional CFL lighting. In addition, LED lighting solutions do not contain environmentally hazardous metals such as mercury or sodium and do not emit potentially harmful Ultraviolet radiation or Infrared radiation like Halogen lamps. Another benefit is the extremely long life cycle of around 50 000 hrs which lowers maintenance costs in the long term. The GlacialLight LED product range offers considerable power savings while extending long product life cycles under normal conditions. The advantages of LED lighting adding to the lowering of the world’s carbon footprint cannot be underestimated.
About GlacialLight
GlacialTech Inc., is a diversified provider of cooling, power supply, PC enclosure solutions for the consumer and industrial applications. Having established strong relationships with LED semiconductor Co.’s, thermal, SMPS and mechanism technology leaders worldwide, GlacialTech leverages world-class engineering, efficient manufacturing and highest-quality materials to provide high brightness, low power LED lighting solutions for indoor, outdoor and other customized applications under the GlacialLight brand. For more information visit www.GlacialLight.com
Availability: Shipping from Taiwan middle of August
Price: Manufacturers Recommended Selling Price: 60USD
Recently, the Executive Yuan, Taiwan’s Cabinet, announced it would replace all the island’s incandescent-type traffic lights with LED lamps in three years, and replace all the incandescent lamps currently serving throughout the island with energy-saving lamps in four years. Taiwan government’s energy-conservation policy will give a big boost to the island’s energy-saving lamp industry, in which many manufacturers have planned to begin volume production or sheer shipment some time this quarter.
Energy-saving lamps will first see business opportunities generated by the policy, which they say will fuel massive use of the lamps. China Electrical, currently Taiwan’s No.1 lamp maker, pointed out that the government policy would bring about huge market potential for energy-saving lighting fixtures and T5 fluorescent tubes. The uses of LED lamps would further help reduce energy consumption and CO2-gas emission. Industry watchers estimate energy-saving lamps to be one of China Electrical major revenue earners this year.
In line with the policy, the lamp maker plans to branch into production of T5 lamps using its cold cathode fluorescent lamp technology. An automated production line calling for NT$300-400 million is on the drawing board.
Lite-On has acquired Philips’ patented technology for making energy-saving lamps and entered into alliance with the heavyweight lamp maker to produce the lamps by becoming its contract supplier, and has delivered its lamps to major customers including Philips for verifications. The company’s factory in Zhenjiang of the mainland Chinese province of Jiangsu will begin volume production of the lamps in September and its factory in Indonesia, whose output capacity is much bigger, will enter into volume production in July next year.
Meanwhile, Industry watchers estimate local LED roadway-light industry to begin producing results only when all the lights on the island are changed to LED types, think that LED has lower penetration in roadway-light market than in traffic-light market and make foray into household-lighting market only when the lamp’s price runs close to that of energy-saving lamp.
It’s reported that only one existing technology that can be tapped to display images large enough for arena use and are viewable even in direct sunlight: the LED.
Building humongous panels is very difficult. Today, to go larger than that, special production equipment would have to be developed. Projection technology might seem like a solution, but it's not. Indoors, front-projection is feasible. But in big, enclosed arenas such as those at the Beijing Olympics, the presence of competing light sources tends to dull the projected images. Naturally, things get even worse for a front projector in an outdoor stadium.
Matsushita Electric Industrial Co. is installing its LED Astrovision technology in China. The Japanese consumer electronics giant will supply the Beijing Games with 25 LED Astrovision video display screens, delivering a total of almost 4,000ft².
it's easy to increase the brightness is one advantage of the LED, a self-emitting diode, is that. Astrovision's luminance is as high as 5,000cd/m²; the brightest PDP can offer only 1,600cd/m². And the Astrovision panels are not flat, so slanting sunlight is deflected to the ground and away from the audience. A display installed in an arena must be able to deliver excellent images to the audience regardless of where they sit. Here too, LED displays have advantages.
An Astrovision screen consists of as many as 1,728 LED units, snapped into a metal latticework frame. Each unit contains a layer of LEDs in a grid of red, blue and green diodes placed at 8mm intervals. When the screen is viewed from a distance of 3m, three primary-color diodes, driven together, blend to form what appears to be a full-color pixel, reproducing realistic images in vivid hues. Because each LED unit operates at 1.6kHz, it offers a very fast response time.
In general, LED is commonly found as indicator lights on cars and electronic devices, they are now available as an everyday lighting option for our home.
As LEDs significantly reduce energy consumption, this lighting solution is beneficial for home applications that require illumination for several hours a day or places where the lights are frequently turned on and off. The challenge of changing hard to reach light bulbs such as in recessed pot lights and track lighting, can also easily be solved by using LED light bulbs.
LED lighting is more than just a light bulb, it’s a technology. Outperforming standard lighting by lasting up to 80% longer, LEDs produce more light per watt of electricity and significantly reduce energy consumption. Philips, known for its innovative lighting technologies, has mini reflectors that use only 4 watts of electricity while providing a high quality light output. When considering the benefits of installing LED lighting, the energy savings and length of life far surpass standard lighting sources.
It’s reported that Sturtevant - Energy-saving lighting that could help cities in Alaska to Australia save on the cost of electricity in street lights is creating global growth opportunities for Ruud Lighting Inc.
The company President Alan Ruud says Ruud Lighting's LED street light fixtures use 50% less energy than a conventional street light, the lights will be installed on some Racine streets. Other cities in the United States and around the world also have purchased the long-lasting, energy-saving fixtures. Because of demands to reduce costs through energy efficiency and to avoid the use of hazardous materials, Ruud Lighting’s Beta Lighting division is seeing increased interest in LED technology, such as mercury, in energy-efficient light fixtures.
The privately held company and its lighting partner, Cree Inc. of Raleigh, N.C., won a contract under which the City of Anchorage will replace all of its 16,000 light fixtures over the next four years. The first 4,000 fixtures were approved last week under a $2.2 million appropriation announced by Anchorage Mayor Mark Begich.
According to a Navigant Consulting study in 2002, the market for LED street lighting is vast, as 1% of all the electricity sold by investor-owned utilities in the country is used on street lights. Ruud Lighting has patents to develop fixtures that incorporate technology from Cree, an LED lighting manufacturer. Ruud’s energy-saving lights are being installed in highway tunnels in Italy, along streets in Oakland, Calif., on the exterior of the Metro Market store in downtown Milwaukee and at the new Johnson Controls Inc. headquarters in Glendale.
The product developed in recent months, known as LEDway, was developed in response to a federal Department of Energy study conducted of the lights that Ruud installed last year in Oakland.
That business, Dew & Ken Group Inc. of Madison, already has its lights installed on several streets in China and is working to get customers in the United States. Dew & Ken was a finalist in the Governor’s Business Plan Contest.
Recently, the Cabinet in Taiwan decided to designate LED as one bellwether industries to actively develop in the near future based on a promising future for green sectors. The government is planning to encourage households to replace existing public lighting with LED lamps to save electricity.
To actively promote the iabove-mentioned green industries, Economics Minister Yin Chi-ming recently led a delegation to Japan to solicit Japanese manufacturers to invest in Taiwan to help develop green industries on the island. Yin asked Asahi Glass Co., Japan`s leading glass firm, to expand its operations by installing two more kilns in Taiwan and disclosed that the government might help provide land in the industrial zones in central and southern Taiwan to accommodate interested Japanese companies.
The government would subsidize half of installation cost for households installed, meanwhile, the government will replace 340,000 street lamps with LED ones around the island within three years, which is estimated to cost NT$1.8 billion. Besides, car lights sold in Taiwan have to use LEDs after 2011.
Despite AU Optronics (AUO)'s optimism about the penetration rate of LED backlighting for notebook applications in 2008, many Taiwan LED players are conservative regarding such penetration rate growth. As the world becomes more concerned about the economic outlook for the year, and the price difference between LED and CCFL lighting sources in backlight units (BLUs) has not narrowed as much as had been expected, the 20% penetration rate forecasted by AUO may not be achieved, the LED players predicted, while revising their own goal to below 10%.
Recently, Sharp Corp., Japan's biggest maker of liquid-crystal displays, will begin selling lights made based on light-emitting diode technology to establish a new earnings pillar on top of flat panel and solar cell businesses.
Sharp follows companies including Toshiba Corp. and Citizen Holdings Co. in entering the market for LEDs, which consume less energy and last longer than incandescent and fluorescent lights, are seen as promising next-generation lights as costs for power generation and concerns about greenhouse gas emissions rise.
The company introduces for starters 11 different LED lighting solutions, and the LED lights will be starting to ship in Japan on September 1st.
Accounting for 30 percent of the nation's overall lighting market, the market for LED lighting in Japan will probably climb to 300 billion yen in 2012, Sharp estimates Japan's LED light market at 10 billion yen this year, or about 1.2 percent of the overall 860 billion yen market.
About Sharp Corporation
Sharp Corporation is a worldwide developer of innovative products and core technologies that play a key role in shaping the future of electronics. As a leader in liquid crystal displays and digital technologies, Sharp offers one of the broadest and most advanced lines of consumer electronics, information products and electronic components, while also creating new network businesses.
Recently, Sunovia Energy Technologies, Inc., a renewable energy and energy conservation company, has acquired the exclusive rights to patents that allow it to expand its existing product offering into the extended-life and security LED lighting markets.
The patents acquired, enable Sunovia's EvoLucia(TM) LED lighting fixtures to differentiate between a power failure and the power being turned-off at the switch. This proprietary feature allows Sunovia the ability to market LED lighting products that remain illuminated during power outages. This system integration is especially important in countries that experience frequent blackouts and also to domestic customers that are concerned with weather events.
Carl Smith, Sunovia's CEO and Chairman of the Board, stated, based of the acquisition, development and integration of proprietary technologies, our continued ability to deliver practical and energy-efficient solutions to the global lighting markets will further solidify our position as a rising player within this immense market.
About Sunovia Energy Technologies, Inc.
Sunovia Energy Technologies is a Sarasota, Fla.-based renewable energy and energy conservation company, is also the owner of the energy-efficient LED lighting product line, EvoLucia(TM). The EvoLucia(TM) brand is CE, FCC, TUV and IP23 regulatory approved, and is now marketed worldwide.
Although the advantage of using LED light bulbs is “Saving Energy”; its current market price and energy-saving effect still cannot compete with the compact fluorescent lamp’s. Yet, if the luminous efficiency of LED light bulbs can reach 80 lumens and its price can decrease by 40%, the cost of LED light bulb can catch up with that of the compact fluorescent lamp. In terms of the current production process of LED manufacturers, the demand of LED light bulbs will probably dramatically increase by 2010.
Also, for the LED light bulbs to replace the compact fluorescent lamp, and become the main household lighting source, aside from its brightness and cost, the “color temperature” will be the critical point to consider about. In terms of the household light bulbs, since the color temperatures of them range from 2500 to 3500K, it brings about a warm interior-feeling. However, because of the limitation of the phosphor, the luminous efficacy of warm white LED is 80% of cold white LED, where the color temperature is around 6,000k. Therefore, if LEDs are set to become the household lighting source, the luminous efficiency of the warm white LED should be increased to 100 (LM/W).
According to the projections by DOE (Department of Energy) in relation to the solid-state lighting market from year 2009 to 2014, the luminous efficiency of cold white LED will reach 140 to 150 (Lm/W) by 2010, and warm white LED will be 110 (Lm/W). When the luminous efficiency of LEDs has been improved to more than 100 (Lm/W), the luminous efficiency of LED light bulbs will be improved to 80 (Lm/W) as well. Thus, it will enjoy a great cost advantage which is better than compact fluorescent lamps. Besides, since the LED manufacturers of Taiwan and Japan have both respectively increased their capacities, the price of LEDs will probably go down in 2009 which paves the way to consumer acceptance and also alleviates the prices of LED light bulbs in the end market.
