Chain catering blowout, how to choose lamps?
Eating should be the most direct act to improve human emotions, or else it can't explain why the popularity of chain restaurants has exploded overnight. According to public information, as of the end of 2014, a service-oriented hot pot brand has 109 stores in China. In the first 10 years of its establishment, it expanded at an average rate of 5-8 per year. However, since 2014, the pace of shop opening has suddenly increased. It is only in 2015, and more than 70 stores have been opened nationwide.
It can be seen that the high-speed expansion of the chain of restaurants has become a segment of the market in the commercial lighting field, then, what characteristics of the supply of lamps in this market?
How do owners and designers choose?
Customized styling lamps are usually not very representative by interior designers. Let us directly look at some basic conditions that need to be met for chain catering stores to illuminate functional luminaires (downlights, spotlights):
1. Standardized "customized" products
The speed of expansion of dozens or even hundreds of companies in a year is money for every opportunity cost of commercial property leasing. Therefore, from the signing of the contract to the end of the rent-free period, the restaurant must resolve the overall renovation. As the important material supply, the luminaire must be able to meet the basic requirements of the order and the fast delivery, and have strict requirements on the establishment and service of the enterprise's production capacity, inventory management, logistics and dealer system.
Picture: The fishing pot restaurant chain restaurant, the styling lamps are responsible for the matching of the look and furnishings style, and those embedded in the ceiling, responsible for lighting the downlights on the table, is the functional luminaire, large quantity and standardization.
So what is the "custom" statement?
Because of the difference in application sites, considering the efficiency problem, even for the same spotlight, for lighting places in restaurants and in public places such as subway stations, the requirements for light quality should be different.
The light quality of different LED chips will cause the difference in light quality: the contrast of the same fresh meat in the ordinary light color and high color fidelity Rf, high color saturation Rg light color, the picture was taken from the 2016 Guangya Exhibition.
The light quality requirements of the restaurant are higher, and the requirement of public places is “seeing clearlyâ€, so it can be more biased towards the luminous efficiency index.
Left: Laowang pot restaurant chain restaurant;
Right: The measured data of the functional downlight of the restaurant after 3 years, the color rendering index CRI (Ra) 80, far higher than the parameters in the same category of products at that time, this is the chip "custom" in the catering industry, directly related to The light quality of the luminaire.
2, the quality of lamps is superior
The renovation and renovation period of the restaurant is about three to five years, which means that the life of the lamps must reach at least this level, and the replacement repair will bring the cost increase to the owners, and will directly affect the business.
Said that LED products are tens of thousands of hours of life? Then why are there so many high-frequency bad lights in the LED products of the market?
Don't be naive, it is possible under the premise of superior quality of lamps. There are also standards for quality. For functional LEDs, the core of the lamp (LED light source), radiator, power supply, glare control Wait for four major standards.
a, LED light source is excellent
Generally understand the knowledge of LED lamps, LED light source is equivalent to the heart of LED lamps. For example, what kind of chip is used in your home lighting, which one? For example, the cost of LED lamps is not the cost of the outer casing + light source + drive + assembly, the price is XXX (omit 10,000 words), and for example, the LED lighting of the previous years must be imported with foreign LEDs.
Therefore, the choice of LED light source is an important reference when selecting lamps in chain restaurants.
Photo: Geosheen
A good LED light source not only has high luminous intensity, but also can withstand high PN junction temperature. The final reflection on the LED luminaire is that the light effect is relatively high and the light decay is small, so it is necessary to choose a good light. Look at the LED light source it chooses. In the past, LED chips or light sources were usually divided into three camps, the first in Europe, the second in Korea and the third in Korea. With the rapid development of the domestic LED chip industry, this statement is basically no mention of it, but in general, the quality of LED chips or lamp beads in Europe and America is relatively reliable.
b, the heat dissipation of the lamp is excellent
Light decay is the use of lights to darken or even dead lights, this is a problem in the field of application, that is to say, who does not want to appear light decay.
Light fade and life have a standard of measurement, generally marked L70/B50, the brand is also marked with L80/B50. What does that mean? It is the time taken to measure when the light output of 50% of the product drops below the initial value of 70%.
But what is the biggest relationship between LED light decay? It is the junction temperature, which is what we often call Junction Temperature.
The L70 life of the LEDs varies greatly with different junction temperatures.
Therefore, the choice of the above lamps is actually to see if the cooling system is good, because the high junction temperature of the chip is the most fundamental cause of light decay.
Image source: Dongyu
A good luminaire must be designed for heat dissipation and heat conduction so that the temperature rise of the LED illuminator must not exceed the maximum temperature allowed by the LED junction temperature.
Figure: The chip directly burns due to the failure of the thermal design, which not only affects the light efficiency, but also the life of the lamp. (Thanks to Chen Qifeng for providing pictures)
A reasonable thermal design is critical to the life of LED luminaires. The advanced heat sink optimization software is used to optimize the design of the heat sink, taking into account the mutual interference between heat radiation and convection ventilation to facilitate rapid heat convection.
In addition, good heat dissipation materials can not be ignored. At present, the common LED heat-dissipating materials on the market mainly include: cold forged aluminum, die-cast aluminum, profile aluminum, plastic-coated aluminum, etc. The good heat-dissipating material has a higher thermal conductivity coefficient and can effectively derive heat.
Figure: Reasonable professional heat dissipation structure design and heat dissipation fin system to achieve good heat dissipation function when the lamp works, realize three years of zero maintenance and zero replacement of the chain restaurant.
c, a good power adapter
From an application point of view, significant stroboscopic eyes can cause eye strain and damage vision.
From the technical point of view of the luminaire, the power supply is the main cause of stroboscopic lighting. Therefore, the luminaires are selected, especially in the case of high-intensity applications, such as restaurants and commercial applications, and products that match the high-stability power supply must be selected. The stability of the structural solution must be verified by many years of application.
Photo: Geosheen
d, glare control - optical design of lamps
Did you see the dazzling lights of the small sun on the ceiling? This is not only a waste of light, but more disadvantages are the discomfort of consumers, making lamps become the culprit to drive consumers away.
To avoid this phenomenon, you need to choose a luminaire equipped with an excellent optical system.
Figure: Geosheen Focus Reflection patented optical system.
Photo: The fishing king pot restaurant chain restaurant, the ceiling light embedded in the ceiling has no extra glare, and the effect of seeing the light is not seen.
3, the lamp cost-effective - correct calculation of value
For chain businesses, a certain amount of things must necessarily pursue cost-effectiveness.
The price must consist of two parts, one is the initial price of the fixture itself, and the other is the cost of use during the use of the fixture.
The most classic example is the comparison between LEDs and traditional luminaires. Although the initial price of LED luminaires is high, the price is much lower, so LED luminaires are the choice of most restaurant chains.
In addition, in combination with the life and quality of the first point described above, high-quality lamps bring less than 7% of light decay, reduce maintenance costs, and greatly reduce the cost of use in depreciation.
In summary, to enhance the commercial space environment, if a guest finds that a light is flashing or not lit when eating, it is not the price of a lamp to make up. Choosing a good light for a chain restaurant is not to say that you want to become a professional lighting person, but some standards still need to know, polish your eyes and believe in science.
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