​​How to quickly find the model identifier of LED display? ​ ​
Each device has an exclusive identity. Usually, a metal nameplate containing the model code is pasted on the side of the screen bezel or on the back control box surface. ​ ​It is recommended to view the area near the power interface first​​Most manufacturers will centrally mark the model number, serial number and other information on 10×6cm aluminum labels, and use laser engraving technology to ensure that the information remains permanently.

​​What key information does the model code contain? ​ ​
A standardized model naming system usually reflects three major elements:

1. ​​Product Category​​: Outdoor advertising screens often start with "O" and rental screens are marked with "R" series
2. ​​Pixel spacing​​: P followed by numbers represent the number of pitch millimeters, such as P3.9/P2.5
3. ​​Box size​​: The standard box is marked as 500×500mm, and the special-shaped screen is marked as S+ serial number
   ​​Key Tips​​: Some new models will embed technical signatures, such as HDR represents high dynamic range model, while N is a low-power version.

​​How to interpret the parameter comparison table? ​ ​
The technical parameter table should contain core performance indicators:

• ​​Brightness parameters​​: Indoor type (800-1200cd/m²)/outdoor type (4000-7500cd/m²)
• ​​Refresh frequency​​: Professional grade ≥1920Hz, basic type ≥960Hz
• ​​Protection level​​: IP65 represents dust and waterproof level, W marked with wide temperature working model
  ​​Pay special attention​​: Products with intelligent brightness adjustment function will be specially marked with the "ALC" mark in the parameter column.

​​How to verify model information in the system background? ​ ​
Through the device management interface of the control software, the hardware identification code can be retrieved. ​ ​Recommended operation process​​：

1. Log in to the control system → Device management → Hardware information
2. Check screen physical parameters and system record data
3. Export device parameter report in PDF format
   This method is especially suitable for installed fixed displays to avoid the risk of high-altitude operation verification.

​​The location rules of international certification marks​​
Products that meet export standards will display the certification mark on the side of the packaging box:

• ​​CE​​: EU safety certification (blue label on white background)
• ​​CCC​​: Mandatory certification of China (elliptical contour mark)
• ​​RoHS​​: Environmental certification (green leaf icon)
  ​​Important reminder​​: The certification tag should contain a unique QR code, and scan the code to directly access the verification platform.

When you need to query the technical documentation for a specific model, it is recommended to contact the equipment supplier directly to obtain the complete information package. Professional manufacturers usually provide a complete set of electronic documents from installation instructions to maintenance manuals, and some support cloud storage to read at any time. Choosing a service team with 24-hour technical response can ensure timely resolution of professional issues such as model matching.

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