Yesterday, I helped Lao Wang, who runs a milk tea shop, inspect the goods. He pointed at the newly arrived LED screen and scratched his head: "Why does this model logo look like a hide-and-seek?" "As a result, we walked around the device three times and finally found the nameplate on the back of the power interface. This incident made me realize that finding the display model is really a technical job. Today we will break down where these key information are hidden.

​​You must know the five treasure hiding spots on the fuselage​​
Don’t be stupid and just stare at the front of the screen! Focus on checking these locations:
1、​​Above the power interface​ ​(Many manufacturers like to post it here)
2、​​The buckle on the side of the box​ ​(Especially the splicing position of the rental screen)
3、​​Inside the receiving card cover​ ​(You can only see it by opening the dust cover)
4、​​Steel frame back groove​ ​(common locations for outdoor screens)
5、​​control system interface​ ​(Go to the settings menu after powering on to check the version information)

Last month I saw the most incredible case - a certain brand had its model number engraved on the interlayer of the heat sink fins, and you had to use a mobile phone flashlight to shine it diagonally to see clearly. Do you think this design is user-proof or peer-proof?

​​Three tips to identify authentic and fake models​​
Don’t panic when you encounter unclear signs. You can verify your identity by taking out your mobile phone:
① ​​Scan code to verify​ ​: The QR code of regular products can jump to the official website verification page.
② ​​Parameter comparison​ ​: Check whether the brightness value (800-1200cd/m² indoors) and refresh rate (≥1920Hz) meet the standards
③ ​​Material feel​ ​: The real nameplate is laser engraved and feels bumpy to the touch.； 90% of sticker models are knock-offs

A restaurant owner suffered a loss when he bought a screen model with the initials "NS-P3", but found no such number on the official website. Later, I discovered that the copycat factory had misappropriated the naming rules of the regular manufacturers and marked the product pitch from 3mm to P3. This operation was really cool!

​​The doorway behind the model​​
Do you think that string of numbers and letters was made up randomly? The industry password is hidden here:

• The initial letter represents the purpose (A=outdoor advertising, S=stage rental)
• The middle number indicates the pixel pitch (P4=4mm)
• The last letter indicates the protection level (H=high protection, W=wide temperature version)

For example: a certain model is marked with​ ​A-P6.5H​ ​, translated as outdoor advertising, 6.5mm pixel pitch, high protection level. If you see "P3" followed by the IP43 protection logo, run away quickly - this parameter combination is pure nonsense!

Let me tell you, finding the model number is like deciphering a secret code. You have to understand the industry rules and methods. The next time you inspect equipment, remember to bring a strong flashlight and a magnifying glass. You might be able to find surprises in every corner. By the way, if you can’t find the model number, it’s safest to directly ask the manufacturer for a video on how to open the cover – all serious manufacturers have videos of installation instructions!

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