A look at the packaging and trademarks
The state requires LED lamps manufacturers to mark the following on the outer packaging: rated voltage, voltage range, rated power , and rated frequency. Generally speaking, high-quality products have good trademark printing quality, clear fonts, and are not easy to fall off. When wiped with a soft damp cloth, the logo is clearly legible and not easy to erase. There are manufacturer's trademarks and related certification marks. Fake products have poor printing quality, blurred fonts, easy to erase, and no manufacturer's trademarks and related certification marks.
Second, look at the appearance of the LED light tube
A true LED energy-saving lamp uses a three-primary color tube. The tube is white and looks even whiter when you cover it with your hand. You can also compare multiple tubes together. Tubes with good consistency in shape and size are mostly mass-produced products with guaranteed quality. At the same time, the outer shell should not have cracks or looseness, and there should be no signs of being pried at the seal. During installation and disassembly, the lamp head should not be loose or tilted.
3. Look at the working temperature
When LED energy-saving lamps are in normal working condition, their temperature rise should be very low. Otherwise, the life of LED energy-saving lamps will be very short. At the same time, when the energy-saving lamps are lit, there are fast flashes or glaring fluctuations, which indicates that the energy-saving lamps have quality problems.
Four, look at the startup performance
There are two characteristics of LED energy-saving lamps: one is that the higher the temperature, the easier it is to start; the other is that the light will not flicker when it is turned off. In addition, it is worth mentioning that many LED energy-saving lamps are very dim when turned on, which is not good for the life of the bulb. LED energy-saving lamps should have a power circuit and PCB board inside.
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Recommended ReadingLatest update time:2024-11-16 17:44
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