Why! Buying an LED screen now is like going on a blind date - if it’s expensive, you’re afraid of being ripped off, and if it’s cheap, you’re afraid of being cheated. Last week, I helped a friend purchase shopping mall advertising screens. After visiting the market for three days, I found that the water was too deep.——​ ​A screen priced at 20,000 yuan is dared to be quoted at 80,000 yuan. Second-hand refurbished machines are sold as brand new. False marking of parameters has become an unspoken rule in the industry.​ ​...Today we will clarify the secrets here!

1. What parameters should you pay attention to when buying a screen?

You may be wondering:​ ​"What exactly are P4 and P5 that merchants are talking about? Is the higher the brightness, the better? "​ ​
There is a lot of knowledge here! Give an example for comparison:

​​Important reminder​ ​: Don’t believe the “military-grade quality” boasted by merchants, just look at the national quality inspection report! in particular​ ​Mean time between failures ≥100,000 hours​ ​This hard indicator is much more effective than sales bragging.

2. PK of the advantages and disadvantages of the three major purchasing channels

▍Online platform purchasing (suitable for impatient people)

​​advantage​​：

• Price comparison is easy (you can see ten quotes in 30 seconds)
• Support for 7 days without any reason (but you may pay for the freight yourself)
  ​​Pitfall warning​​：
• 80% of "factory direct sales" are actually second-hand dealers
• Areas hardest hit by parameter fraud (the measured brightness may be discounted by 30%)

​​Suggestions from experienced people​ ​: Request video inspection! Let the seller test the grayscale performance on site, and don’t trust product images that have been retouched.

▍Shopping in offline physical stores (recommended for those with details)

Don’t underestimate these facades, they hide two trump cards:

• ​​Can bargain​ ​(Usually 20%-30% lower than list price)
• ​​See inventory​ ​(Avoid buying old models that have been in storage for many years)
  ​​Three things you must do​​：
  ✅ Touch the screen seams (poor flatness and poor quality)
  ✅ Smell the box smell (the pungent glue smell may be due to renovation)
  ✅ Measure the maximum power (sudden power outage can best test the stability of the power supply)

▍Factory direct purchase (suitable for large-volume purchases)

This way of playing can save the middleman the price difference, but please pay attention to:

• ​​Minimum order quantity threshold​ ​(Usually the minimum size is 50㎡)
• ​​Long customization cycle​ ​(Reserve at least 45 days in advance)
  ​​Technical guarantee bottom line​​：
  ① Full-process quality inspection report (especially the 72-hour aging test)
  ② Three-year warranty agreement (including on-site maintenance services)
  ③ Spare parts list (to prevent missing parts for discontinued models)

3. Five tips for price negotiation

1. ​​"Can you provide project cases of the same model? "​ ​
   (The kind that requires live video, photos can be photoshopped and videos are difficult to fake)
2. ​​"How to compensate for the dead light rate? "​ ​
   (The industry standard is free replacement within one ten thousandth)
3. ​​"Does it include installation and debugging? "​ ​
   (Later installation of brackets and wiring may cost tens of thousands more)
4. ​​"Is there any charge for software system upgrade? "​ ​
   (Many businesses lay mines here)
5. ​​"How much does it cost to repair after the warranty expires? "​ ​
   (Lock the price of spare parts in advance to avoid starting from the ground)

4. Can second-hand screens be touched?

​​This is a good question​ ​! Let’s look at the group data comparison first:

​​Lessons of blood and tears​ ​: Last year, a shopping mall bought a second-hand screen for cheap, but it turned out that the maintenance fee in two years was enough to buy a new screen - this is so cheap!

Editor's personal talk

After seven years of hard work in the industry, I have summarized three iron rules:

1. ​​Don’t touch goods that are 30% lower than the market price​ ​! Either the parameters shrink, or the after-sales service runs away
2. ​​Place an order three months before the peak season​ ​Can save 15% of the budget (especially during the off-season purchasing period after the Spring Festival)
3. ​​Pay at three o'clock​ ​: Original quality inspection report, distribution of after-sales outlets, past project cases

Finally, here’s an industry secret:​ ​The LED screen repair market will surge by 40% in 2024​ ​, 60% of the faults are caused by mines planted during procurement. Remember - the money you save will turn into repair orders sooner or later, and a reliable supplier is more important than your own mother!

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