When customers are ready to buy a piece of jewelry, they should pay attention to the factors that affect the value, such as color, size, lathe work, design and so on. But no matter how beautiful jewelry is, it also needs good light to glow with its due brilliance.
As we know, the color of light emitted by the light source itself is "light source color", and the color reflected by the light source is generally called "surface color". Except for some gems with fluorescent or phosphorescent effects, jewelry itself is not luminous.
Although natural light is the most ideal light source for appreciating natural gemstones, in actual sales, due to the limitation of the venue, merchants often choose artificial lighting for lighting, and how to use appropriate light sources to show the value of jewelry has increasingly become a concern of jewelers. However, due to lack of experience or expert guidance, jewelers generally only pay attention to bright light when decorating storefronts or counters, which makes the storefronts feel gorgeous and magnificent as a whole. It ignores the proportional distribution of light sources and makes no difference between subject and non-subject. The jewelry placed in the counter lacks layering. In addition to unnecessary waste, the high temperature and electromagnetic radiation of excessively bright lights will also damage the color of the object itself, especially affecting the structure and chemical composition of some organic gems, such as pearls, corals and amber. In addition, according to psychologists' research, dazzling lights will also have an emotional impact on customers and business personnel of jewelry stores, and will also affect the transaction of jewelry.
When jewelry stores choose lighting, the factors that need to be considered are the color, illuminance, flicker, temperature, color rendering, infrared ray, ultraviolet ray and so on. Of course, it is impossible to take into account all the above factors, and generally color temperature, illumination and flicker need to be considered. According to relevant data, jewelry can show the best appearance effect under the irradiation of 3300k-5000k color temperature light.
The factors that merchants should pay special attention to when choosing the light source, different lighting levels can distinguish the level in the jewelry store from the sales subject; Scintillation refers to a kind of reflected light emitted by jewelry when light shines on it. The more obvious the reflected light is, the more dazzling the gem is. Color rendering refers to the correct color and clarity of light shining on an object. The higher the color rendering, the better it can describe the fine craftsmanship and true color of jewelry.
If you can thoroughly understand the four elements of basic light source: light color, illuminance, flicker and color development, I believe you can also become a light source expert in jewelry stores, and your company will also benefit from it, with prosperous business and rolling financial resources.
Why not use metal halide lamps for jewelry?
Performance creates wealth. Many people in China like to use metal halide lamps (a square or round lamp holder with a special shape, it usually takes about 3-5 minutes to fully light up after the long tube of 10 cm is started). From the perspective of professional jewelry, this is not a good strategy. Let's start with the characteristics of metal halide lamps. The full name of metal halide lamp: "metal halide lamp", also known as "composite metal lamp", belongs to high-pressure gas discharge lamp (HID). The characteristic of this lamp is that the light source can't be turned on immediately, and it takes at least 5-10 minutes to reach the normal brightness. Once the power is cut off, it takes 1 5 minutes to cool down. Electricity consumption If the domestic power shortage situation has not improved, but after the power failure, we have to wait 10 minutes to operate normally, and the loss can be large or small.
Lighting affects performance: light and color difference of metal halide lamps;
Metal halide lamps and tubes are gas discharge lamps, not tungsten filament bulbs. Metal halide lamps often use a mixture of several halogen compounds, such as indium iodide, thallium and sodium, because sodium can emit yellow light, thallium can emit green light and indium can emit blue light. Because of the uneven consumption of halides, the color difference of lamps will change when they are used, that is, the color will turn yellow with time, and then turn green and blue, which can be said to be extremely unstable. Not only the color difference of the lamp is large, but also the brightness (light difference and light attenuation) of the metal halide lamp is large, because the brightness of the HID lamp will decrease by about 20% after it is used for 100 hours (HID is in normal cycle operation), and the brightness will decrease with the use time. This is a characteristic of this lamp, so don't expect a metal halide lamp to have a constant light source. On the other hand, the life calculation of light bulbs must be understood, otherwise it will be used by unprofessional lighting equipment merchants.
Excellence comes from quality. Generally, the life of a light bulb refers to the average life. This is an ordinary life. The actual use time also depends on the objective installation environment. The average life of HID lamps can be defined as the total hours when the luminous flux decays to 50% of the initial value. In other words, if a metal halide lamp can advertise for 5000 hours, that is, after 5000 hours, its luminous flux is only 50% of the initial value. In other words, at this time, it uses twice the power, or it only has half the original luminous effect. At this time, the color changes repeatedly, which is not the light color when it was first used. Therefore, the service life of the light bulb should refer to "economic life", that is, "average life" *0.6, that is, if 5000 hours × 0.6 = 3000 hours, the light bulb should be replaced immediately after 3000 hours. This principle is widely used in lighting management, but it is often ignored or covered up by the jewelry industry. At this point, you should have a great understanding of the cost of jewelry lighting!
Domestic jewelry stores generally like to use metal halide lamps and general tungsten halide lamps to illuminate diamonds, because there was no professional jewelry lamp in the early days. GemLux jewelry bulb metal halide lamp, not developed and produced for jewelry, can provide white light, but the light with poor penetration often only produces reflected light but not refracted light on gems, because the light cannot enter the gem and refracts. From the perspective of jewelry, the most important reason is that the light generated by HID lamp only emits a small amount of continuous spectrum, that is to say, its color rendering is only between poor and medium. The quality of this light source can never meet the high color demand of jewelry stores. You must accept new ideas to get ahead of your competitors.