Hey fellows, I also made a joke when I first entered the industry - staring at three identical LED screens in the warehouse, I couldn't tell which one was P3 and which one was P4. Later, the master reminded me with a sentence: "Looking at the model number is like looking at an ID card, every number and letter is important! "Today we will pierce this layer of window paper, and I guarantee that you will become an expert immediately after reading it!

1. Where is the most reliable place to hide the model number?

​​Finding the model number is like playing an escape room.​ ​, the key is to know these treasure places:

• ​​product label stickers​ ​: 80% in the lower right corner of the back of the screen, right next to the appliance energy efficiency label
• ​​System settings menu​ ​: Press "Menu + 666" on the remote control to enter engineering mode (this key combination may be different for each manufacturer)
• ​​Driver board stamp​ ​: Take apart the box and look at the green circuit board, with the PN code engraved on it by laser.

Last month, I encountered an interesting incident when I was inspecting goods for a customer: the label was torn off by the construction team. Finally, I felt the CL-AD-4K-IP65 code on the driver board to confirm that it was a waterproof advertising screen. So,​ ​Hardware identification is the most reliable at critical moments​​！

2. There are ways to decrypt parameters

​​The letters and numbers in the model number are not garbled characters.​ ​, let’s take it apart and see:

1. ​​Pixel density​ ​: The smaller the number after P, the more precise it is. For example, P3 has a pixel pitch of 3 mm.
2. ​​Protection level​ ​: IP65 means dustproof and waterproof, able to withstand outdoor heavy rain.
3. ​​Brightness Identification​ ​: O stands for Outdoor (usually starting from 4000 nits), I stands for Indoor (Indoor)
4. ​​special features​ ​: Those with H may be specifications with a high refresh rate, 1920Hz or higher.

For example, the model NS-P3-O4.5H-IP65 translates to: 3mm pixel pitch, 4500 nits outdoor brightness, high refresh rate, and IP65 protection. The parameters are completely consistent with the advertising screen featured by our manufacturer!

3. Hidden easter eggs in the model

​​Those who know the industry can also see the production process​​：

• ​​Material code​ ​: AZM stands for aluminum-magnesium-zinc alloy box, which can be disassembled and assembled three times faster than traditional iron boxes.
• ​​Grayscale​ ​: The color transition of 16bit is more than ten times smoother than that of 14bit
• ​​Power supply method​ ​: Those with a B suffix may be dual power backup systems.

Last year, we installed a fence screen for an international stadium. The model number contained an R. Later I realized that it was a quick maintenance design - a single module could be replaced in 90 seconds. This design gives the venue a thumbs up and saves two-thirds of maintenance time!

4. Guidelines for avoiding pitfalls should be kept in mind

Novices are most likely to fall into these pitfalls:

• ​​Don’t believe the appearance size​ ​: With the same 55-inch screen, the display area of ​​P2.5 is 20% smaller than that of P4.
• ​​Be wary of virtual parameters​ ​: With a true 1920Hz refresh rate, there should be no scanning lines when shooting videos with a mobile phone.
• ​​Pay attention to the operating environment​ ​: If the indoor screen is modified for outdoor use, it will break down within three months.

I saw a case last week: a merchant installed an indoor 800-nit screen in the window, but it turned out that it was impossible to see clearly during the day. If I had understood the "I800" in the model number, how could I have wasted these tens of thousands of dollars?

Let me tell you, looking at the model number is like feeling the pulse in Chinese medicine. You have to look, hear, ask and feel. Nowadays, some manufacturers make the model number look like a password, in fact, just to allow customers to ask more questions - at this time, you have to find a reliable technical team. As our engineers often say: "Good products are not afraid of testing, and true parameters can withstand inspection!" "If you are not sure what the model number means, take a photo and send it to the professional team, who will explain it clearly to you in minutes!

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