Because of the durability, energy saving and better price of LED lamps, LED lamps are now more and more popular among families. However, because LED lamps are rapidly emerging in the past two years, many people are still not very clear when purchasing. Need to pay attention to what issues, let us take a look.
1, buy attention to the certification mark
For how to choose LED lamps, consumers need to check whether the lamps have clear product trademarks and certification marks. The reporter learned that the current certification of lamps includes 3C certification, CE certification, UL certification, GS certification.
It is understood that 3C certification, that is, China Compulsory Product Certification, is also known as CCC certification. This certification is required for household appliances, wires and cables. CE certification is a mandatory requirement of the EU law for related products. Any product (involved in the new method directive), whether produced by the EU or EU member states, must be freely circulated in the EU market. Before being placed on the EU market, they must comply with the requirements of the Directive and relevant harmonized standards, and affix the CE mark, while the electrical products need to be affixed with the CE mark. If these markings are attached to the LED luminaire, the safety performance of the sample is certified. Therefore, when purchasing lamps, you should also check whether the wires are 3C certified.
2. Check if the product information is complete.
The quality of the trademarks of high-quality products is good, even if wiped with a soft damp cloth, it will not be easily rubbed off. Yang Zheng reminds you to check whether the font/pattern of the mark is clear and variable, firm and wearable (cannot be wiped off), and the position is correct. The complete marking information of a luminaire should include the following aspects: 1. Source (factory name, site, trademark, contact information); 2. According to the standard (implemented product standard, expressly promised indicator parameters); 3. Basic performance parameters ( Description of equivalent replacement of incandescent lamp, including electrical parameters including working voltage, working current, power, harmonic current, etc.; optical parameters including luminous flux, luminous efficacy, beam angle, etc.; color temperature and color rendering index; Light decay, etc.)
3, the use of environmental requirements can not be ignored
The luminaire should also have specific environmental requirements, including the ambient temperature or range of the luminaire, and the specific operating temperature.
The product should also be marked with protection against electric shock, dust and solid clothing and waterproof rating. Similar warning instructions and installation material instructions should not be ignored. For example, some lamps are only suitable for direct mounting on the surface of non-combustible materials.
4, seeing the hand touch can also be shaken
The above information inspection work is completed, and the consumer feels the quality of the lamp by touching it by hand or the like. Can I check if the appearance of the product is very rough? Is there any glue that is not cleaned? Is there a screw that protrudes from the fixing plane? Is the color of the screw consistent with the color of the outer casing? Is there any sharp edges or scratches on the surface? The good lamps are processed finely, the color is pure, the surface layer is good in integrity, the links of the parts have no flaws in appearance, and the dimensional consistency is good.
In addition to the appearance, the luminaire should have a certain ability to resist external forces, so when buying a luminaire, you can use force to shake it to check whether parts are falling off or loose.
5, lighting the lamp to observe the color and heat
The quality of the product can be judged according to the color change of the LED light and the heat dissipation. When the observation lamp lights up, the color changes. If it is changed from yellow light to white light in a short time, or white light turns into white light with blue color, it is not recommended to purchase such a product. The color of the light should be consistent and not flashing.
After the LED lamp is started, it can contact the surface temperature of the product to detect the heat dissipation of the product. High-quality LED lamps are stable in 30 minutes. If the surface temperature of the product continues to rise within 1 hour, do not choose this product, because heat dissipation and other factors will affect the life of the product.
If you are interested in LED Lighting,Benefit from fantastic savings on LED Lighting, just by taking a look at https://leftled.com.
China LED Lighting Supplier on Online Shopping for Best LED Lighting at https://leftled.com.