LED is short for lightingemittingand, with the rapid development of technology, it has changed from a display screen to a consumer's home instead of a light source or LED lamp. But at present, the product in the market is uneven, the spread is big, even have the rumor that LED lamps and lanterns have "blue light harm". How to choose LED lamps and lanterns becomes a lot of consumer to face problem, want to bring safe LED lamps and lanterns to take home, you still really have to do some homework.
1. Flexible new light source.
Compared with incandescent lamps and fluorescent lamps, LED is a new type of light source, but its characteristics are bright: small energy consumption, relatively long life, adjustable light color, no mercury, etc. In addition to these advantages, leds are more popular for their flexibility.
When using a traditional light source, many consumers will have a feeling that some fluorescent and gold halide lights are dimmer when they turn on, before they become brighter. And the LED light source can be activated instantaneously, to the maximum extent. In addition, compared with the traditional light source, LED light source can adjust the color. Single LED light source can realize the change of color light, can build a warm family atmosphere better.
Currently, LED products are divided into two categories. One is LED alternative light source, which can directly replace the traditional light source in existing lamps. Another kind is LED lamp, realized illuminant and lamps and lanterns integral design product. The reporter sees in the market, at present LED instead of light source on the interface of the size and shape maintain high consistency with the traditional light source, can be easily replace the lamps and lanterns in the traditional light source. However, the shape and application of LED lamps are rich and varied, which can be made into lamps and lanterns. Therefore, they are welcomed by more and more consumers. In addition, because the LED is easy to integrate intelligent control, it can be controlled through the media such as computer, mobile phone, control panel and remote control, which decides it is suitable for future development. At present, the market also has the mobile phone software to regulate the light color LED home lighting products.
2. Indoor selection of "two low" products.
LED broad purposes: road lighting, building, the wild, shopping malls, etc., for the average consumer, LED lamps and lanterns is mainly used for indoor lighting, China lighting electric appliance association of relevant experts advised to choose a "low colour temperature", "low power" products.
Color temperature shows the characteristics shown the color of the LED lighting products, generally fall into three categories: low colour temperature (3300 k), medium temperature (more than 3300 b6000k, light color is white, used in hospital, shops and other places), high temperature (6000 k, the light blue color, more used in the classroom, drawing room, window display and so on). Low color temperature light color is red, give a person with warm, healthy, comfortable feeling, apply to the place such as family, residence. Power determines the brightness of LED lighting products. Low-power products are mainly used for indoor lighting, such as table lamps, corridor lights, living room spotlights, and night lights.
3. Beware of "blue light hazard" of luminaire
Whether the light radiation of LED can be harmful to human body, since LED products have been popularized indoors, the industry has been concerned. The reporter understands that the blue light harm is not the LED lighting product, some gold halide lamp and some fluorescent lamps also have the blue ray harm. In March 2006, our country introduced the standard of "optical biosafety of light and lamp system" (GB/T20145B2006), and classified the safety of lamps and lanterns. According to this standard, 0 (no dangerous) lamps do not cause any photobiological hazards under extreme conditions; Class 1 (low-hazard) lamps do not cause damage under normal exposure conditions; The light produced by two types of lamps does not cause a person to feel the harm of the discomfort of light and temperature; 3 types (high danger) lamps can cause damage to the human body in an instant.
It is understood that in 2013, the Shanghai quality supervision and inspection institute of technology for samples from the choose and buy of 27 LED lighting on the market for a baseline test, finally found in 27 samples, 14 samples are not dangerous class, 13 samples are 1 kind of danger, no samples are two kind of dangerous. Of Shanghai association of lighting director, national electric light source quality supervision and inspection center (Shanghai), deputy director of the YuAnQi advice, in ordinary cases blu-ray hazard classification for indoor use only 1 class and the following LED lighting products; For special groups (people with diabetes and photosensitive drugs) or those who may be in a special position, the LED lights should be used without harm.
In addition, the LED lamps and lanterns of medium temperature is higher, the blue light composition proportion, the greater the while others did not constitute a blue light damage, but if the long-term use of this kind of lighting light, will affect people's sleep and circadian system, to reduce people's immunity. The Chinese lighting electrical association advises consumers that the color temperature should not be more than 4000k, and avoid products with a color index greater than 80, which is greater than 5000k.
The choose and buy one
1. Pay attention to the certification mark.
For how to choose LED lamps and lanterns, the expert of electric light source says, consumer needs to check whether the lamps and lanterns have clear product mark and certification mark. Currently, the certification of lamps and lanterns includes 3C certification, CE certification, UL certification, GS certification, etc. Among them, 3C certification and CE certification are the most common in China.
3C certification, China compulsory product certification, also known as CCC certification. This certification must be carried out for household appliances, electric wires and cables. CE certification is put forward to related products by the eu law a mandatory requirements, any provision of new method (instruction) involved in the products, products of both outside the European Union and the European Union member states, if you want to free circulation in the eu market, before the eu market, must comply with the instructions and related coordination standard requirements, and labeled with CE mark, and electrical products need to be labeled with CE mark. If these marks are attached to the LED lamps, the safety performance of the samples is certified. When buying lamps and lanterns, consumers should also check whether the wires have been certified by 3C.
2. Check whether the product information is complete.
The trademark printing quality of quality product is good, even with soft wet cloth wipe, also won't be wiped easily. Check whether the font/pattern of the tag is clear, variable, hard to wear, and the position is correct. The complete labeling information of a lamp should include the following aspects: 1. Source (name, address, trademark, contact information); 2. According to the standard (the product standard implemented, the indicator parameter of the express promise); 3. Basic performance parameters (equivalent to the description of the incandescent lamp, including electrical parameters including working voltage, working current, power, harmonic current and other indicators; Light parameters including luminous flux, light effect, beam Angle, etc. Color parameters of color temperature and color index; Droop, etc.)
3. Environmental requirements should not be ignored.
Lighting experts said that the lamps should also have specific environmental requirements, including the ambient temperature or range of the lamps, and the specific working temperature.
The products should also be labeled with anti-shock level, dust and solid clothing and waterproof grade, etc. "Lamps should also have installation instructions." Lighting experts say similar warning instructions and installation instructions are not to be ignored. For example, some lamps and lanterns are only suitable for direct installation on non-combustible material surface.
4. It's hard to shake hands.
After completing the above information inspection work, Yang zheng also suggested that consumers feel the quality of the lamps and lanterns by means of hand touch. Can you check the appearance of the product is not very rough? Is there glue that doesn't clean up? Is there a screw to highlight the flat surface? Is the color of the screw consistent with the color of the shell? Are there sharp edges or scratches on the surface? He said that from the appearance, the fine lamps are refined, the color is pure, the surface flow layer integrity is good, the links of the parts have no appearance of defects, the size uniformity is good.
In addition to look, lamps and lanterns should have a certain ability to resist external force, so when buying lamps and lanterns, can shake with force, check whether have component falls off, loosen phenomenon.
5. Light the lamp to observe color and heat dissipation.
Experts from the China illuminating electric appliance association pointed out that the quality of products can be judged according to the color change and heat dissipation of LED lights. If the color changes after the light is lit, if in a short period of time, the yellow light becomes white light, or white light becomes white light with blue, experts do not recommend such products. Experts point out that the colors of the lights should be consistent and not flashing.
After the LED lamp is started, the surface temperature of the product can be contacted to detect the heat dissipation of the product. High quality LED lamps are stable at 30 minutes. If the surface temperature continues to rise within 1 hour, do not choose this product, because the heat dissipation and other factors will affect the product life.