Five aspects require attention when choosing LED bulbs

Due to the durability, energy efficiency and, increasingly low prices of LED bulbs, it becomes more and more popular among the families. But because LED bulbs are quickly rising in the past two years, a lot of people are not very clear about what issues need attention when shopping, let us go through this together below.

First, pay attention to the certification mark

When you are buying LED bulbs, experts said, consumers need to check whether there is a clear bulb product trademarks and certification marks. Reporters learned that, the current bulbs certifications include 3C certification, CE certification, UL certification, GS certification. Among them, the most common is the 3C certification and CE certification.

Second, check whether the product information is complete

The trademark of good quality products is printing well, even wipe with a soft damp cloth, it will not easily be erased. Consumers can check whether the tagged font / pattern is clear, firmly wear (indelible), the position is correct and so on. And full tag information of a light bulb should include the following aspects: 1, source (name and address, trademark, contact information); 2, following standard (product standards, and the index parameter expressing the commitment); 3, the basic performance parameters ( replace incandescent equivalent description, including the electrical parameters of voltage, current, power, harmonic currents and other indicators; with luminous flux, luminous efficacy parameters, light beam, angle indicators; color temperature and color rendering index; light attenuation, etc.)

Third, the use of environmental requirements can not be ignored

LED bulbs should also have specific environmental requirements, including the bulb ambient temperature or range, specific operating temperature. Special products should also be labeled for its electric shock level, anti-dust and waterproof rating and other solid clothing. Similar warnings and installation instructions can not be ignored. For instance, some bulbs only suit for direct installation in a non-combustible surface.

Fourth, look carefully, touch and shake firmly

Completion of the above information and inspection work, Yang Zheng also advises consumers through touch and other ways to feel good or bad for the bulbs. You can check the appearance of the product, whether it is very rough? Is there any glue uncleaned? Is there a screw protruding fixing plane? The color of screw shell color is consistent or not? Are there any sharp edges or surface scratches? He said that from the appearance, a good bulb is produced with fine processing art, pure color, integrate surface flow layer, and no defect link parts in appearance, and good consistency.

In addition to look, Yang Zheng said, bulbs should have a certain resistance to external force so when buying the lamp, shake firmly,  to check if there are any missing, loose parts.

Fifth, lit the lamp to observe the color and heat

The experts of China Association of Lighting Industry pointed out that, consumer can determine the quality of product according to the changing color of LED lighting and its thermal conditions. Color change was observed after the lamp is lit, if within a short time, the yellow becomes white, or a white light into a bluish white, experts do not recommend to buy such products. Experts point out that light glowing color should be consistent, and not blinking.

After the LED bulbs are lit, consumer can touch the surface to detect the temperature of products to see its heat dissipation. The temperature of good LED bulb is stable in 30 minutes, if within one hour, the temperature of the product continues to rise, do not select the product, because heat and other factors that may affect product life.