Zhang, the owner of a milk tea shop in the commercial street, has been worried recently: he wants to install an LED scrolling screen in the window for promotion. He searched the entire network and found that the prices range from 300 yuan to 3,000 yuan. It is difficult to distinguish the authenticity of the "high-definition waterproofing" and "intelligent control" promoted by the manufacturer. How to choose a reliable supplier? This article uses actual data to help you clear the fog.

​​1. Must-read before purchasing: clarify the four elements of demand​​

1. ​​Use scenarios to determine parameters​​
   The first choice for outdoor door head screen is ≥IP65 waterproof level (stable operation in heavy rains), while for indoor window screens, you need to pay attention to the light transmittance (it is recommended to avoid obstructing your sight line by ≥75%. For example, in the use scenarios of restaurants, actual measured data shows that the service life of the waterproof screen is 2.3 times longer than that of ordinary screens.
2. ​​Display content matching specifications​​
   Plain text display single and double-color screen (such as the average price of P10 specification is as low as 850 yuan/㎡), and dynamic video requires a full-color screen (the starting price of P4 specification is about 3,000 yuan/㎡). A chain of convenience stores found that the customer entry rate increased by 45% after using full-color screens.
3. ​​Control mode configuration on demand​​
   Models that support Bluetooth font modification of mobile phones are 15%-20% more expensive than traditional USB drive transmission models, but their operation and maintenance efficiency is 70%. It is recommended that smart models be preferred for high-frequency update scenarios such as catering and retail.
4. ​​Installation method affects budget​​
   The wall-mounted type saves 40% of the installation cost compared to the column type, but the wall load bearing needs to be confirmed in advance. In actual testing, a commercial complex project, the construction cost of customized curved screens increased by 25% compared with conventional screens, but the passenger flow increased by 32% month-on-month.

​​2. Revealing the Parameter Trap: Merchants won't tell you the truth​​

• ​​Brightness mark identification method​​: If the actual measured brightness of the outdoor screen is less than 4500cd/m², there will be "blurry display" when the light is metered at the middle of the day. You can use the professional mode of mobile phone (the value must be ≥EV12). A random inspection by an e-commerce platform showed that 32% of the low-priced screens had a false brightness mark.
• ​​Chip grade affects life​​: Screens using domestic Zhongke Core are 30% cheaper than Taiwanese chips, but the failure rate is 1.8 times higher. It is recommended that suppliers provide 72-hour aging test video.
• ​​Power supply stability test​​: Touch the power module after playing video continuously for 8 hours, and choose carefully for models with temperatures exceeding 60℃. Industry data shows that power failures account for 57% of the total LED screen repairs.

​​3. Comparison of procurement channels: Analysis of the advantages and disadvantages of online and offline​​

Source: 2025 Industry Procurement White Paper

It is recommended that projects with a budget of more than 50,000 yuan are directly connected to the factory, which can save the price difference between the middlemen by about 28%. A supermarket chain group has saved over 600,000 yuan in budget through direct procurement of 200 store screen projects.

​​4. Guide to avoid pits: Six must be checked for signing a contract​​

1. Clarify the warranty scope (including labor costs without it? )
2. Agreed brightness attenuation standard (≤5% per year)
3. Specify maintenance response time (recommended ≤48 hours)
4. Confirm software upgrade service (especially networked control type)
5. Keep samples sealed (avoid mismatched)
6. Agreed penalty clause (delayed delivery is calculated on a daily basis)

​​Exclusive view:​​
Two new trends appeared in the LED screen market in 2025: First, the purchase volume of flexible screens soared by 230% year-on-year, and the catering industry has become a new trend with curved screens to create "immersive dining areas" ； Second, intelligent operation and maintenance systems are popular, and 78% of high-quality suppliers have begun to provide remote fault diagnosis services. It is recommended to reserve 10% of the budget for software upgrades during procurement to ensure that the equipment does not fall behind within 5 years.

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