The LED display screen has a lot of LED lamp beads, so the screening of the LED display screen is actually the screening of the LED lamp beads, so what should be paid attention to in the LED lamp bead screening?

 

1. Look at the product packaging and grades

 

This is a very simple and intuitive way to distinguish. The outer packaging of genuine LED lights should be marked with information such as rated voltage, voltage range, and rated power, as well as brand names and related certification marks. The printing quality of the brand on the outer packaging of the genuine LED lamp is good, the font is clear, and it is not easy to be scattered. Even if it is wiped with a soft damp cloth, the brand is still clearly identifiable. The printing quality of the fake and inferior product grades is poor, and the fonts are blurred, and the one-sided product grades can be erased with a damp cloth. In addition, the outer packaging of a few inferior products does not have printed grades and related certification marks.

 

2. Look at the appearance of the lamp

 

Genuine LED lights use three-primary color tubes, and the color of the tube is whiter. After covering it by hand, the color will look whiter. When purchasing, consumers can put multiple LED lights together for comparison. Products with better tube style and size consistency are mostly mass-produced products, and the quality is mostly guaranteed. In addition, it is necessary to check whether the appearance of the LED lamp is cracked or loose, and to observe whether the interface has been pried off, and if there is, analyze it as a low-quality product. Genuine LED lights will not be loose or crooked during installation and disassembly.

 

Consumers can also distinguish the quality of the LED lamp by its shell material. The plastic shell of the genuine LED lamp is made of flame-retardant material, which has a rough texture and is similar to frosted glass. Inferior products are made of ordinary plastic, with a smooth and shiny surface. This type of material is easily deformed and flammable.

 

3. Look at the temperature of things

 

Under working conditions, the temperature of the genuine LED lamp will not be too high and it can be touched by hand. If the purchased product heats up significantly during the event, then analyze that its quality is problematic. In addition, if the light of the LED lamp flickers, it is also analyzed that there is a problem with its quality.

 

4. Look at the electromagnetic interference environment

 

In our country, electromagnetic compatibility is an important indicator for reviewing whether electrical products pass the test, so consumers can check whether there is a relevant mark on the outer packaging that passes the test when purchasing LED lights.