Precautions for the purchase of downlight shell accessories
Good quality is not what is blown out. If you want to choose high-quality lighting accessories, you need to pay attention to several key points:
1. Look at the packaging and trademark. The state forces the manufacturer of downlight shell to mark the following contents on the outer package: rated voltage, voltage scale, rated power and rated frequency. Generally speaking, the trademark printing quality of high-quality products is good, the mark is clear and distinguishable, it is not easy to wipe off with a soft wet cloth, and there are manufacturers' trademarks and related certification marks.
2. Look at the appearance of the lamp. The appearance shall be free of cracks, looseness and prying marks between interfaces. In the process of installation and disassembly, the lamp head shall not be loose or crooked. It is necessary to choose the flame-retardant type of engineering plastics for the plastic shell of the lamp, which is characterized by the similar texture of frosted glass on its appearance. And general plastic appearance is smooth, glossy, but easy to deform and flammable, is to prevent the production of energy-saving lamps.
3. Check the operation. Under normal operation condition, the temperature rise of downlight shell shall be relatively low. If the heat dissipation condition is not good, the lamp bead works under high temperature, the light attenuation will be great, and the lamp life will be greatly reduced. Together, when the lamp is on and closed, if there is a fast flashing, it also indicates that there is a quality problem.
4. Listen to the operation. EMC is a necessary item for electrical appliances. It is necessary to stamp the national EMC test mark on the package of downlight shell products. We can also pass a small test to make a simple judgment. Take a medium and short wave radio. When the lights are working, put the radio nearby. The lower the noise the radio receives, the better the electromagnetic compatibility of the tested lights. In the quiet environment, if you can hear the sound of downlight operation, the power supply of the lamp is not very good.
Article source: downlight shell manufacturerhttp://mushuren.cn/
-
05-04
What is wrong with the purchase of downlight shell
With the increasingly strong sound of energy conservation and environmental protection, we are using more and more LED lights in lighting design. LED market is now a mixture of good and bad, manufacturers and businesses are pushing and blowing their own products. So what do you know about LED line lights?The selection of LED lamps includes appearance, heat dissipation, light distribution, glare, e
-
05-04
Common chips of downlight shell
We are not unfamiliar with downlight shell, which is one of the commonly used LED lamps in daily life. However, we often neglect the small chip when we choose and buy it, which leads to losses. Although the chip is small, it plays an important role in the downlight housing, because it touches the light efficiency and life of the downlight housing, so you must pay attention to it when you buy it. W
-
05-04
Precautions for the purchase of downlight shell accessories
Good quality is not what is blown out. If you want to choose high-quality lighting accessories, you need to pay attention to several key points:1. Look at the packaging and trademark. The state forces the manufacturer of downlight shell to mark the following contents on the outer package: rated voltage, voltage scale, rated power and rated frequency. Generally speaking, the trademark printing qual
-
05-04
What is the heat dissipation method of downlight shell
As for downlight shell manufacturers, because the use of LED street lights is very long, so, when purchasing LED street lights, many people will pay attention to the heat dissipation problem of downlight shell. Generally speaking, this problem is solved, and the quality of LED street lights will not be very poor.1. The three prevention plan is selected outside the lamp to deal with the heavy dust