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://www.jinleidj.com/
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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
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