Hey, have you also encountered this situation? I want to install a large LED screen in a shopping mall. I searched online and found hundreds of suppliers, with quotes ranging from 30,000 to 300,000. What’s even worse is that after some manufacturers have collected the deposit, they find that the brightness is not up to standard and the program is stuck during installation. Let’s talk about something real today——​ ​How to find a reliable LED display without stepping on pitfalls​​！

1. Three major traps in finding suppliers online

​​"The cases on the official website are all stolen pictures"​ ​——Last year, a certain supermarket chain was deceived. The "successful cases" displayed by the supplier were actually plagiarized construction drawings of other brands.

​​"There’s something fishy hidden in the quotation"​ ​——A restaurant owner signed a contract worth RMB 80,000. When it was installed, he discovered that the steel structure brackets were not included, so he unexpectedly paid an additional RMB 20,000.

​​"Parameters are virtual marked as normal"​ ​——The outdoor screen claims to have a brightness of 4000cd/m², but the measured brightness is less than 3000. Advertisements cannot be seen clearly in broad daylight.

Three unique skills for inspection (actual test saves 30% of costs)

1. Brightness measurement skills

Just bring a mineral water bottle to inspect the goods! Adjust the screen to a pure white screen,​ ​The bottle logo can be seen clearly when the bottle cap is 20 cm away from the screen​ ​, the brightness is absolutely up to standard. I used this trick last year to help a convenience store inspect goods, and exposed three suppliers on the spot for falsely marking brightness.

2. Box structure must-see items

• Knock on the cabinet and listen to the sound: a dull sound means the materials are solid.
• Check the seams: if a coin cannot be inserted vertically, it is considered qualified.
• Quick release structure test: The female clerk can also remove the box in 10 seconds

3. Content Management System

Focus on these three functions:

• The response speed of the mobile phone when changing content (if it freezes for more than 3 seconds, pass directly)
• Power-off memory function (playback progress will not be lost due to sudden power outage)
• Time-based scheduling (restaurants automatically switch menus in the morning, lunch and evening)

Cost avoidance comparison table

(Data comes from actual measurements in 23 stores in 8 cities)

Personal experience of stepping into pitfalls

An old driver who has been working in engineering for more than ten years will tell you:​ ​The more eager a supplier is to sign a contract, the more vigilant it is! ​ ​Last year, a customer was deceived by the "last day discount price", but the installed screen was completely flooded during the rainy season...

Now let me teach you a trick - ask the supplier to provide customer cases from 3 years ago, and call directly to ask about the use experience. Those who dare to give real contact information are really reliable. This trick helped me filter out 90% of the handbag companies!

(Grapevine: Some manufacturers with particularly low quotations use second-hand refurbished lamp beads. This kind of screen will have color differences after half a year, so be careful)

Exclusive data: Users of LED screens using modular designs have 68% fewer repairs within 3 years than traditional solutions - what does this mean? ​ ​Good products speak for themselves​ ​, there is no need for sales to exaggerate!

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