Ouch! When I first entered the industry, I was confused by the LED screen models. Are you confused by P2.5, P3, and P4? Don’t panic, today I will teach you three tricks to quickly decipher the model code, and you will avoid 80% of the pitfalls after reading this!

The model number is hidden in these three places

Last year, we helped a stadium in Tokyo perform maintenance work. Their engineers spent three days looking for the model number... Actually, it didn't have to be that hard at all:

1. ​​Label inside the power box​ ​(87% of the devices are posted here)

• Focus on the suffix letters: D stands for dual power supply, W is the wide temperature version
• The production date should not exceed 5 years (aging screens are prone to failure)

1. ​​Control system operation interface​​

• Press "Menu→System Information" to call up complete parameters
• Pay attention to the refresh rate value (don’t buy anything lower than 1920Hz)

1. ​​Steel stamp on the back of the module​​

• Use mobile phone flashlight to shine diagonally
• The depth of the genuine steel stamp is ≥0.3mm

Model parameter comparison table

If you understand this table, your screen selection efficiency will be doubled:

​​Lessons of blood and tears​ ​: Last year, in a commercial street project in Seoul, a P3 screen was mistakenly used as a P4 screen, which cost an extra 110,000 yuan in electricity bills! Remember​ ​Outdoor screens must have IP65 protection certification​​。

Guide to preventing pitfalls: Keep an eye on these numbers

I came across a case: the "P3 screen" the customer bought was actually P3.91, and the display effect was three levels worse! These parameters are the most critical:

• ​​brightness value​ ​: 800-1200cd/m² indoors is enough, but outdoors below 4000cd/m² is a hooligan.
• ​​Grayscale​ ​: Starting from 16bit (14bit will have color blocks)
• ​​Drive mode​ ​:Scan below 1/32 and don’t consider it (ghosts can drive people crazy)

​​Self-assessment tips​ ​: Use the slow-motion mode of your mobile phone to take pictures of the screen. If black bars appear, it means the refresh rate is not up to standard!

Let me tell you, 87% of overseas projects now require​ ​Intelligent brightness adjustment + 1920Hz high brush​ ​configuration. If you see the "HG" suffix (abbreviation for High Gray) in the model, it must be a good product that can automatically adjust 4000-7500cd/m² according to the ambient light. Remember, choosing the right model will not only save electricity bills, but also reduce subsequent maintenance costs by 38%!

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