How big is the LED application field?
A, LED applications overview <br> <br> medium and long term, a new factor driving industry growth will be LED general lighting market.
In view of the global trend of reducing carbon emissions, the demand for LEDs in China's general lighting sector will be very strong. The low power consumption of LEDs and environmental protection have reduced the pressure on energy saving and emission reduction in the lighting industry.
At present, the application of LED in lighting is still in the initial penetration stage. The R&D cost and manufacturing cost of the LED industry are high. In the research and development of technology, further improvement is needed. The pre-market promotion and the formation of consumer word-of-mouth have great influence.
Today, more and more companies are investing in the industry, rising costs, falling profits, overcapacity, price wars, and SMEs are struggling. However, there are not many national brands, most of which are based on regional brands. Therefore, there is still room for development for related companies.
Second, the application of LED light source in urban landscape lighting Urban landscape lighting is not the brightness, but the creative design of art, LED products should be able to find its use.
The LED with small illumination angle has strong directivity and can be used as partial accent illumination. Adding a scattering agent to the encapsulation material can achieve illumination angle of 175 degrees suitable for illumination in a wide range. The problem is that the construction unit in urban night illumination is too high. Brightness is difficult to give designers a large enough range of choices.
At present, LED light sources commonly used in urban night lighting projects mainly include:
1. Linear illuminating lamps LED linear illuminating lamps (tubes, belts, curtain wall lamps, etc.): The resulting contour lighting effects can replace traditional neon lights, magnesia neon tubes, and color fluorescent lamps.
Commonly used products rated working voltage DC12V, 24V (mostly for high-power switching power supply, some products use linear power supply), AC220V; control methods are divided into internal control and external control, lighting projects generally use tens to hundreds of singles Body combination.
LED linear illuminating lamps have been widely used in the contour lighting of urban buildings and the railing lighting of bridges due to their good weather resistance, extremely low light decay during life, variable color, and flow-changing lighting effects.
Taking the contour light drawn by a building as an example, the combination of the three primary colors of red, green and blue of the LED light source can be changed according to different modes under the control of the microprocessor, such as water ripple continuous color change, time change color, gradient, Transients, etc., form the effect of the high-rise buildings at night.
2, decorative lawn lights, landscape lights, bulbs, etc. in urban streets or green spaces, the light-emitting parts are designed into a ring, belt and other structures, partially illuminate the lawn; at the same time become a decorative element in the daytime environment. Commonly used products rated working voltage AC220V, the control method is mostly internal control (in the place where synchronization changes are required, the synchronization line can be used to achieve forced synchronization).
In actual engineering, it is often used as a decorative lighting in conjunction with a gas discharge light source. LED lights of various shapes and functions, such as lawn lights, landscape lights, bulbs, etc., can be combined into a colorful light phantom.
This "multi-color, multi-bright spot, multi-pattern" change reflects the characteristics of the LED light source.
3, underwater lights LED underwater lights placed under water, used for water body lighting, protection level should reach IP68. Rated operating voltage DC12V.
The low-voltage operating characteristics of the LED make it safer than any previous luminaire. The long life has the advantage of making it easier to repair, and the lighting effect is more abundant than the commonly used PAR lamps and gas discharge lamps.
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