Hey old man! Have you been wondering where to buy a reliable large LED screen recently? All the manufacturers I searched online said they were excellent, and the prices ranged from cabbage prices to sky-high prices. Don’t rush to place an order, first take a look at the useful information summarized by me who has been through the pitfalls - when buying a large screen these days, just looking at the parameters is not enough!

1. Production strength is the last word

Last week, I witnessed a tragedy with my own eyes: a shopping mall bought a low-priced screen, and on the opening day, the screen looked blurry and looked like a mosaic. ​ ​Remember these three iron rules​​：

• ​​A factory with a monthly output of over 10,000 square meters is reliable.​ ​(Small workshops simply cannot handle bulk orders)
• It is necessary to bring a live video of the workshop to inspect the goods (the robotic arm assembly line is ten times more stable than manual welding)
• ​​Priority will be given to those with exports accounting for more than 50%​ ​(The quality inspection standards of Japanese and Korean customers are no joke)

Take a well-established factory in Shenzhen as an example. The roof of the factory is as big as ten basketball courts, and the fully automatic production line keeps humming 24 hours a day. How do you think they tested it? Adjust the screen brightness to 7,500 nits and bake it for three days and nights. This level of intensity can be called true quality.

2. Hidden traps in parameter tables

The key points to read in the parameter sheet given to you by the salesperson are:

1. ​​Refresh rate ≥1920Hz​ ​(There will be no water ripples when shooting videos)
2. The brightness can be adjusted intelligently (don’t exceed 1200 indoors, be careful to blind your eyes)
3. ​​Protection grade at least IP65​ ​(Still as stable as an old dog in heavy rain)
4. Gray scale starting from 16bit (the soul of picture layering)
5. After-sales response ≤2 hours (can save lives at critical moments)

Last year, the fence screen of a stadium in Tokyo withstood Category 9 winds during a typhoon but did not stop working. The secret lies in the hidden buckle of the cabinet and the self-locking plug. Such details are not included in the parameter list!

3. Service is the magic mirror

Let’s talk about an industry insider: many low-priced screens have cut down after-sales costs! ​ ​These four questions must be asked clearly​​：

• Does the design include 3D environment simulation?
• Does the installation team have technicians with ten years of experience?
• How to calculate the maintenance fee outside the warranty period?
• Will anyone answer the phone call at two o'clock in the middle of the night?

A shopping mall project in Southeast Asia had a black screen in the early morning. Fortunately, the manufacturer set up a local service station, and engineers arrived with spare modules in 20 minutes. This kind of strength is not something that a leather bag company can handle.

Speaking of this, I suddenly remembered something - some businesses sell conference room projectors as LED screens. As a result, at the opening ceremony, Party A’s father’s face was as green as a bitter melon. So, when buying a large screen, you have to find someone who dares to shoot five years of operating data on your desk. Next time you meet a braggart, just dump him and ask him three times: Can you do a video factory inspection? Do you dare to sign a quality insurance contract? Are there any actual cases of overseas projects?

After all, buying a large LED screen is like marrying a wife. You can't just look at the appearance, you have to check the family background to see the connotation. Those who open their workshops for you to see, those who speak without beating around the bush, and those who can still answer the technical hotline at three o'clock in the middle of the night are the really reliable men!

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