Ouch hey! Are newbies who want to buy LED displays dazzled by the advertisement of 9.9 for free shipping on Taobao? Or is it that the salesperson is fooled by the "nanotechnology" and "military quality" that cannot be found? Let's take a look at this underwear​ ​How many pitfalls are hidden in the doorway to buy LED displays​​！

1. Three major minefields for online screen buying: pay less IQ tax after reading

First pour cold water: the top 3 stores in Moudong’s sales volume returned to 27% last year! Why? Let’s take a look at these tricks:

​​Online screen purchase guide to avoid pits:​​

1. ​​Parameters water injection​​: The P3 spacing is actually a P4 reorganization, and the filling will be exposed as soon as you measure the vernier caliper
2. ​​Package Trap​​: "Send to install" may not include the cost of aerial work vehicles, and the end it will cost an additional 8,000 yuan.
3. ​​Used renovation​​: The motherboard serial number does not match the packaging box, and it is probably a repaired inventory machine

There is one here​​A trick to verify the machine​​——Require live video broadcast to start testing! A smart buyer asked the seller to play a large red picture on the spot, and you could see a colored block in the lower left corner at a glance, so you could directly avoid defective products.

2. Four steps to learn from offline channels: All the savings are net profits

Last year, a shopping mall saved 150,000 yuan in budget, this is the secret​​Factory Appraisal Method​​：

​​Must check on field inspections:​​

• Look at the thickness of gray in the corner of the workshop (the workshop that starts all year round cannot be spotless)
• Touch the heat sink temperature (the temperature of the aging screen that works normally is about 45℃)
• Check material code (every part of regular manufacturers has a trace code)
• Ask for after-sales case (those who dare to come up with three years of maintenance records are the real boss)

The key point is here! Request to see​ ​Salt spray test report​​, if you can withstand 5% salt water spray for 48 hours, you can only feel at ease if you use it in coastal areas. The most outrageous case we have ever seen: a manufacturer used iron sheet to pretend to be stainless steel, but it turned out to be rusted after three months of installing a screen at the beach!

3. The tricks of project providers’ quotation: Teach you the magic of exposing the price

The same 100㎡ P4 screen can range from 280,000 to 500,000! The price difference is mainly hidden here:

​​Cost anatomical diagram:​​

Remember this formula:​​Reasonable price = area × unit price + 15% design fee + 10% transportation insurance​​. A customer cut off the "brand premium" and directly went to the ODM factory to customize it, saving 22% of the same configuration!

4. How to break special needs: Custom screen purchasing secrets

Want to create a curved transparent screen? Or can it withstand a polar screen of minus 40℃? Remember these key points:

​​Special screen shopping list:​​

• Arc screens need to be measured by the arc error (<0.5° to be considered qualified)
• The floor tiles screen must be load-bearing (200kg/㎡ is the foundation)
• The working temperature range of the low-temperature screen should be checked (-40℃~+85℃)
• The focus is on disassembly and assembly speed of rental screens (5 minutes/㎡ is the industry benchmark)

There is a classic case: a music festival used local bricks for ordinary screens, but 32 modules were broken by high heels. Later, it was replaced with military-grade protective screens, and it has not failed in three years.

5. The editor’s bloody experience: Don’t save this money!

I have been in this industry for ten years and have seen too many cases of losing big because of small things:

• ​​Don't save quality inspection fees​​: Full inspection is 3% more expensive than random inspection, but can avoid 100% of batch accidents
• ​​Don't cut the installation budget​​: High-altitude working cars are more expensive than screens, but safe and priceless
• ​​Don't ignore spare parts​​: At least 5% modules are available, temporary purchases are 3 times more expensive

The latest industry data shows:​​Choosing the right supplier can reduce operation and maintenance costs by 37%​​! Those manufacturers that provide 7×24-hour technical support, although 5% more expensive, can make you worry less for ten years.

Exclusive data: The cause of LED screen failure in 2023,​​Power problems account for 41%​​, 28% of the control card failures account for 28%, and only 15% of the real lamp beads are damaged. So, don't just stare at the screen next time,​ ​A good power supply is the longevity password​​！

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