Depth analysis of the hotel LED lighting transformation short board

At present, to carry out energy-saving emission reduction actions in China is a nationwide, hotels and other industries have responded to the call, and actively explore new ways of saving energy, using a professional energy-saving lighting LED lamp, LED lamp, LED lamp, LED bulb lamp technology, energy saving has become the hotel industry to achieve energy-saving goals "shortcut to high office". But in all areas of the hotel are using LED lighting, there are limitations, the operation is difficult and the effect is not obvious.

According to the development of LED lighting transformation of the hotel facing obstacles, the reporter interviewed the depth of Singapore Preiss Lighting Design Consulting Co. Ltd. chief hotel professional lighting design consultant Xu Qingliu, he believes that the initial high cost, LED technology is not mature, including heat, color index and light distribution are restricting short board Hotel LED lighting transformation.

High initial cost

Every time it comes to the current application of LED lighting products in the course of the difficulties encountered, the high cost of this factor is commonplace in many people in the line. For LED lighting in the transformation of the short board, Xu Qingliu think the biggest problem is still on the cost, especially the initial purchase cost is too high. Although LED lighting is more obvious than traditional lighting, can save 30% of electricity, but the initial cost of LED lighting is too expensive, many hotels have shied away from. For example, he said, with the most common LED lights to calculate, it is now the price of the use of energy-saving lamps 2-4 times, the hotel catering industry needs the rapid flow of funds, the money is undoubtedly huge. And the need for more complex optical, thermal and drive design.

"For the star hotel, the initial cost is generally not a problem, after two or three years of operations, comprehensive monthly annual savings in electricity, still can save a lot of money, the use of the total cost will be lower than the total cost of traditional lamps, many hotel owners are willing to try. But for the Econo Hotel, there will not be too much investment, if the price of LED lighting down, they will consider the use of. Said Xu Qingliu.

While LED can reduce the cost from the scale of production and increase the rate of finished products, technical innovation, package several considerations, but also in the industry more urgent need to address the problem of LED lighting system reliability and reduce cost, this is also a key to fully enter the field of lighting.

Immature technology

Blindly advocating the light effect, ignoring the color rendering index

In the field of LED lighting, we are talking about a lot of hot LED is more energy-efficient than traditional light sources, the application of more, higher luminous efficiency. Xu Qingliu indeed, the majority of people in the industry will focus on improving the efficiency of the light, the pursuit of light effect is not desirable. When we look at the light efficiency of LED, we must pay attention to its color rendering index, only speak the light effect, ignoring the color rendering index is of no practical significance.

The color rendering index of LED lamps is a comparison value between the lamp source and the sunlight, which is used to reflect the true color of a thing, and the value of the LED lamp is reflected in the brightness. The color rendering index is the key parameter to determine the product quality and effect.

Due to the limited number of lumens, high color warm Seda not get the best effect, the LED lamp CRI reached more than 75, the relatively high superiority of the product, is also the color index increased. But the problem is that the market demand for color rendering index is not high. If the color index is set, the method to improve the brightness can also be to change the auxiliary materials such as fluorescent powder, silver glue, etc.. If you use imported chips, you can also improve the color rendering index warm white tone. Xu Qingliu believes that the general color rendering index of more than 80 more difficult, although it can achieve, but the flux and color index is inversely proportional to the color index, high luminous flux, the inevitable decline, brightness is not reached the requirements set.

Heat is difficult to guarantee

In recent years, some developed countries in the world have launched a fierce competition in the field of LED. LED heat dissipation has been an urgent problem to be solved. Research data show that if the LED chip junction temperature of 25 degrees when the light is 100%, then the junction temperature rises to 60 degrees, the amount of light is only about 90%, when the junction temperature of 100 degrees will drop to 80%; only about 140 degrees. It is very important to improve the heat dissipation and control the junction temperature. "LED is the most important issue in the design of LED lighting," said Xu Qingliu.

The design of existing LED lamps are often difficult to meet the requirements of heat, heat in a very demanding field, but the use of passive cooling method is very poor, and are even closed air cooling, air cooling, "Xu Qingliu calm. Like some lamps between the drive plate and the aluminum radiator to add plastic casing to increase the reliability of the insulation, but also need to heat the silica gel to improve heat dissipation.

The Savoy Hotel refused to use LED lighting

Xu Qingliu said: "now in the public areas of the hotel less LED lighting, usually with halogen lamps, and rooms with more. "

Known as "the most famous hotel in London," The Savoy Hotel proved it. Comparison of MR16 halogen and LED lamps, Savoy rejected the use of LED lighting, because the color feature of it weakened the warm feeling, too dark or too bright, also can make the guests feel uncomfortable.

As the Savoy lighting renovation international chief lighting designer Chris Lewis said: "customers want the hotel to feel warm