LED lighting performance continues to increase, in order to achieve high brightness requirements, but also a large increase in the power of a single component, especially the accompanying high heat conditions, it is likely due to high heat problems, the component's light decay or life is relatively reduced In terms of components, if the heat dissipation requirements can be considered in the front-end process, it is more efficient than the heat dissipation design from the external conditions, and it is also possible to continuously develop higher-power, high-brightness LED components for daily lighting applications.
In the past few years, environmental issues have continued to heat up, and the current situation of various power consumption has changed drastically. There are many great changes in terminal electrical appliances, such as CRT TVs being replaced by LCD TVs, and even a lot of energy-consuming Incandescent lamps have also become the light source that has been banned in various countries.
Because 19% of the world's electricity consumption is used in lighting applications, if energy-saving lamps can be introduced into daily lighting, there may be significant savings in global energy consumption. Therefore, in order to create a more environmentally friendly image of the country, It is also actively promoting the development of lighting energy-saving applications through policies, regulations and industrial guidance. The use of the original LED or CCFL new light source design to replace the traditional light source and daily lighting applications has become an important development trend of the lighting industry.
Traditional light source application status
In most practical applications, a large number of high-efficiency, high-brightness light sources are still required. For example, street lamps, store lighting, store lighting, etc., high-performance, high-brightness lighting facilities are required, and most of them use high-intensity gas discharge lamps (High- Intensity disc ha rge; HID) or halogen lamp to achieve high brightness, high illumination application requirements; in the store, store long-term demand, mostly choose fluorescent tube (CFL); residential still use a lot of incandescent Lights, fluorescent lights (CFLs), or new energy-saving light bulbs that save power. In many practical applications, the most energy-intensive and inefficient light source should be dominated by incandescent lamps, because the application will convert a large amount of electrical energy into useless heat, which will also reduce the life of the lamp.
Observed by specific light source applications, the daily lighting market covers a wide range of applications, including building lighting, signs, landscape lighting, retail, signal lights, street lighting and residential lighting. To discuss the benefits of energy savings, it is necessary to propose a scientific assessment of existing luminaires.
Different lighting schemes have large energy efficiency gaps
In the current lighting applications, incandescent lighting solutions are the least energy efficient, for example, with 60W incandescent lamps, energy efficiency is about 10 lm / W, compared to CFL fluorescent lamps, energy efficiency can reach 50 Lm/W. A 100W HID can have 80lm/W, which is equivalent to producing 8,000 lumens of brightness.
LED light source performance and practicality are greatly improved
The characteristic of LED is that it is an electronic component. It is necessary to use a gas-discharged HID lamp or a CFL fluorescent lamp. The volume of the high-pressure gas inside the glass container must be relatively small, without toxic elements, and the component itself. It has metal contacts and can be soldered to any surface for high convenience.
LED has many advantages in future light sources, and energy-saving benefits are the focus of the most concerned.
In the past, LEDs were limited in technology at the time, and the brightness could not be effectively improved. They were mostly used as auxiliary light sources for indicative purposes. However, with white LEDs as an example, the production methods have been greatly improved. For example, high-efficiency blue LEDs are used to produce approximate white light. The luminous effect, while greatly increasing the brightness output of a single component, the current white LED has made great progress in energy efficiency, the color temperature performance is 4,500 ~ 6,000k, the test data in the laboratory can reach the performance of more than 200 lm / W .
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