Do you often see that some large LED screens on the roadside have gray screens, or color patches appear on the screen just six months after installation? In fact, if you choose the wrong installation location, no matter how expensive the equipment is, it will be useless. Today we will talk about where is the best place to open the LED display screen. After reading it, we can avoid 80% of the pitfalls.

​​▍Don’t touch these five minefields in site selection​​

1. ​​Within 50 meters of high voltage power tower​ ​: Electromagnetic interference will cause snowflake patterns to appear on the screen. The most exaggerated case I have seen is that the screen will randomly jump to ads.
2. ​​Above the exhaust vent of a restaurant​ ​: The acidic substances in oil smoke can corrode holes in circuit boards in half a year.
3. ​​Glass curtain wall corner area​ ​: Sunlight reflection will make the picture look white, making it difficult to see clearly during the day.
4. ​​river flood control area​ ​: Last year during the typhoon season, the screen at the entrance of a shopping mall’s underground garage was directly punched into parts.
5. ​​Old building exterior wall​ ​: If the load-bearing capacity is not enough, the screen and wall may collapse together. This kind of accident happened just last month.

There is a little trivia:​ ​If the screen surface temperature exceeds 60°C, the brightness will automatically decrease.​ ​, so it is best to install awnings on walls that are severely exposed to western sun.

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​​▍Hardware configuration should be selected like this​​
• ​​Waterproof must be IP65 or higher​ ​: Don’t believe what the merchants say about “splash-proof”. You’ll know the difference when it rains heavily.
• ​​Smart brightness adjustment​ ​: The outdoor 4000-7500cd/m² range is the most reasonable and will not blind your eyes in the middle of the night.
• ​​Box seam≤0.5mm​ ​: Screens with large seams will get dust and water in half a year.
• ​​With environmental sensor​ ​: Ability to monitor temperature and humidity in real time and automatically adjust working status

Last week, I helped a friend inspect the screen at the construction site and put a cigarette close to the heat dissipation hole to try it out - with a good heat dissipation system, smoke could not drift in at all. This simple method is much better than looking at the parameter table.

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​​▍Three steps of installation process to verify authenticity​​

1. ​​Venue pre-inspection​ ​: Require the construction party to issue a load-bearing report and electromagnetic environment testing
2. ​​Unpacking the box​ ​: Randomly open 3 boxes to see if the lamp bead batch codes are continuous.
3. ​​Aging test​ ​: The gradient grayscale image must be played continuously for 72 hours.

The most deceptive trick I have ever seen is to mix "sample screens" and "mass production screens". When the problem is discovered, people have already left the market. Now all smart people require​ ​Each screen is individually labeled with a quality inspection code​ ​, you can check production records by scanning the QR code with your mobile phone.

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​​▍Maintenance costs are saved this way​​

1. ​​Choose modular design​ ​: Replace any broken piece, and the maintenance cost will be reduced by 60%.
2. ​​Sign the brightness attenuation agreement​ ​: Free replacement if brightness attenuation exceeds 15% within three years
3. ​​To control the system remotely​ ​: In case of emergency, the mobile phone can switch to the backup screen with one click

There is a shrewd approach of a restaurant chain owner: when installing screens in hot pot restaurants, each screen is required to reserve 20% brightness redundancy. After using it for three years now, when the brightness is increased by 20%, it looks like a new screen, and there is no need to replace it at all.

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Finally, the editor will tell you an industry secret: those who are eager to make you pay the full price will probably cut corners in the installation process. Really reliable suppliers dare to accept it​ ​3-7-0 payment model​ ​——30% advance payment, 70% upon acceptance, and 0 deposit as warranty. Remember to use this to negotiate the price next time you negotiate to ensure that the other party doesn’t dare to fool you.

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