source:other news release time:2023-06-02 Hits: Popular:led screen wholesaler
1. Look at the packaging and labels
National mandatory product LED lighting manufacturers mark the following contents on their packaging: rated voltage range, rated power, and rated frequency. In general, printing high-quality products with clear handwriting is of good quality and not easy to fall off. Wipe with a soft damp cloth to ensure that the logo is clear and recognizable, as well as the manufacturer's trademark and related certification marks.
2. Look at the appearance of LED tubes
A true LED fluorescent lamp. From the perspective of the lamp, the shape and size of the lamp are better and more consistent, with good product consistency and easier quality assurance. Of course, there should be no cracks in the appearance or looseness between the interfaces. LED light tubes must choose the type of engineering plastic flame-retardant plastic PC shell. Ordinary plastic deformation and flammability, aluminum tubes must be bright, aviation aluminum.
3. Working temperature
The temperature of LED fluorescent lamps should be low during normal operation. Otherwise, the lifespan of LED lights is very short. At the same time, when the energy-saving lamp is lit, it flashes rapidly or fluctuates very harshly, indicating that there is a quality issue with the energy-saving lamp. After a few minutes of power on, there should be a temperature to prove good heat dissipation, using an aluminum substrate for heat dissipation. There is no temperature, it is fiberglass board, and heat cannot dissipate.
4. Check startup performance
The startup of LED fluorescent lamps has a characteristic: they will light up immediately after being powered on and will not flash.
5. Weigh each other and compare them to each other. The heavier ones are better than the lighter ones, and the heavier ones indicate that the materials are used well.
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