Hotel LED lighting transformation facing short board

Hotel LED lighting transformation facing short board Every time it comes to the difficulties encountered in the application and promotion of LED lighting products, the “high cost” factor is a cliché among many insiders. For the short board of LED lighting in the hotel transformation, Xu Qingliu believes that the biggest problem lies in the cost, especially the initial purchase cost is too high. Although LED lighting has obvious advantages over traditional lighting, it can save 30% of electricity, but due to the initial cost of LED lighting is too expensive, many hotels have shied away. For example, he said that the price of the most common LED lamps is 2-4 times that of the energy-saving lamps that are currently used. This is undoubtedly a huge amount of money for the hotel industry, which needs fast circulation of capital. And more complex optics, thermals, and drive designs are needed.

“For a star hotel, the initial cost is generally not a problem. After two or three years of operation, considering the monthly electricity savings saved in a comprehensive month, it still can save a lot of money. The total cost of use will be lower than the total cost of traditional lighting. Many hotels The owners are willing to try it, but for budget hotels, there is not much capital to invest in. If the price of LED lighting falls, they will also consider using it, said Xu Qingliu.

The cost reduction of LEDs can be considered in terms of scaled production, improved yield, technological innovation, and packaging, and the more pressing problem in the industry is the reliability and cost reduction of LED lighting fixtures, which is also a comprehensive entry into the lighting field. One of the key points.

Technology is not mature -

Blindly advocating light effects, ignoring the color rendering index in the field of LED lighting, we are talking about more hot spots than the traditional LED light source is more energy-efficient, more applications, higher luminous efficiency. Xu Qingliu is of course, most people in the industry are currently focusing on improving light efficiency, and blind pursuit of light efficiency is not desirable. When we look at the luminous efficacy of LED, we must pay attention to its color rendering index, only talking about light efficiency, and ignoring the color rendering index has no practical significance.

The color rendering index of a LED luminaire is a comparative value between the luminaire light source and the sun's light. The purpose is to reflect a value of the true color level of an item, which is reflected in the brightness of the LED luminaire. The level of the color rendering index is a key parameter that determines the quality and effectiveness of the product.

Due to the limitation of the number of lumens, the high color rendering of warm colors cannot achieve the best effect. The CRI of LED lamps reaches 75 or more, and the superiority of the products is relatively high, that is, the color rendering index is improved. However, the current problem is that the market's demand for color rendering index is not high. If the color rendering index is set, the method for improving the brightness may also be to modify the auxiliary phosphor, silver paste, and the like. If you use imported chips, you can also improve the color index warm white tone. Xu Qingliu believes that it is difficult for the general color rendering index to exceed 80. Although it can be achieved, the luminous flux and the color rendering index are inversely proportional to the color rendering index. The luminous flux will inevitably drop, and the brightness will not be able to meet the set requirements.

Heat dissipation is difficult to ensure In recent years, some of the world's economically developed countries have launched a fierce technological competition around the development of LEDs. LED heat dissipation has always been an urgent issue to be solved. According to research data, if the LED chip has a 100% light emission at a junction temperature of 25 degrees, then the junction temperature will rise to 60 degrees and the light emission will be only 90%. When the junction temperature is 100 degrees, it will drop to 80%. The degree is only 70%. It can be seen that improving heat dissipation and controlling the junction temperature are very important. "LED heat dissipation is the most important issue in the design of LED lamps," said Xu Qingliu.

“The design of existing LED lamps is often difficult to meet the requirements of heat dissipation. In a field where heat dissipation requirements are very demanding, they use very poor passive cooling methods, and most of them are air-cooled or even closed-type air-cooled,” Xu Qing said. . For example, some lamps need plastic sleeves between the driving plate and the aluminum fins to increase the reliability of the insulation. It is also necessary to irrigate the thermal silica to improve the cooling capacity.

Savoy Hotel refused to use LED lighting Xu Qingliu said: “Hotels nowadays use LED lighting in public areas. Halogen lamps are generally used and rooms are used more.”

Known as "the most famous hotel in London", the Savoy Hotel proves this. In contrast to the MR16 halogen and LED lights, Savoy rejected the use of LED lighting because its color rendering characteristics weakened the warm feeling, too bright or too dark, and it also made the guests feel uncomfortable.

Chris Lewis, the international chief lighting designer who works on the lighting transformation in Savoy, said: “Customers want the hotel to feel warm and luxurious, and this is also the selling point of the hotel,” he said. “The halogen lamp is the main body of our lighting. However, LED illumination is still used in places where customers do not pay much attention, such as cylinders, in-walls, glass backlights, and bookshelf lighting."

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