Do you always see the cool LED background walls in the live broadcast room of internet celebrities when you watch short videos? Or are you envious of the giant advertising screen that will move in the mall? But when you look at the price tag - good guy, the new screen can be easily refused by hundreds of thousands of dollars! Don’t panic. Today we will talk about the "secret world" of second-hand LED large screens, and teach you step by step to find reliable goods at a 30% discount.

​​Tell the truth first​​: The second-hand LED screen market is like the second-hand car market, with a very deep water. Some people have been using high-end screens for 20,000 yuan for 3 years, while others have spent 50,000 yuan to buy a pile of scrap iron. If a novice doesn’t have a guide to prevent pits, he will definitely be slaughtered and will not be left.

▍ Four reliable channels to test

1. ​​Online second-hand platform​​
   A certain fish turned to search for "LED large screen" and could produce thousands of messages, but 90% of them were slanderers. Teach you a trick - directly filter "enterprise sellers", and after taking a fancy to the product, ask the other party to show three things:

• Original factory inspection report (focus on usage time and maintenance records)
• The current screen lights up video (the date of the day must be filmed as the background)
• Close-up of the driver chip (preventing the core components from being stolen)

1. ​​Professional recycling company​​
   There are a group of companies in Shenzhen that specialize in the recycling of display equipment. The screens they collect will do three processes:
   ① 72-hour aging test (eliminate dark disease screen)
   ② Complete inspection of lamp beads (use a microscope to check the dead lights one by one)
   ③ Box refurbishment (all rusty screws are replaced with aviation aluminum)
   This refurbished screen is 40% cheaper than the new screen, and the warranty can be given up to 1 year.

2. ​​Final order of industry exhibition​​
   After the Canton Fair and Guangya Exhibition every year, many exhibitors are too lazy to transport the sample screen back. Last year, a friend collected a P2.5 rental screen with an original price of 180,000 yuan at the exhibition site. The only disadvantage is that the exhibition logo is pasted on the back - it is impossible to see if it is worn with sandpaper.

3. ​​Enterprise equipment update​​
   Focus on these three types of companies:

• KTV/cinema that is about to go bankrupt (urgent to cash out)
• Large screen of command centers eliminated by government units (low usage rate and small loss)
• Event companies change careers (many companies sell inventory during the epidemic)

▍ Three tests must be done before buying
Spend 500 yuan to hire a master who knows what he knows and asks him to bring these three magical tools:

1. ​​Grayscale test chart​​(Check if there is any color block fault)
2. ​​Infrared thermometer​​(Direct pass with temperature exceeding 60℃ in working state)
3. ​​multimeter​​(Measure whether the power output voltage fluctuation is within ±5%)

If you can't bear to leave the money, you can also make a simple judgment:

• After turning on the computer, quickly swipe the screen with your hands (the refresh rate with the dragging shadow does not meet the standard)
• Play pure white pictures (the aging of the lamp beads with yellow spots)
• The shutdown state is obliquely looking at the screen (if the reflection is uneven, it must have been watered)

▍ How to squeeze the price of water?
The price difference between the second-hand screens of the same size is three times the price! Remember these three bargaining killers:

1. ​​Look at the year​​
   Don’t consider the screen before 2018 (the lifespan of lamp beads is basically the end)
   There is the greatest room for screen bargaining after 2021 (there is a lot of inventory backlog during the epidemic)

2. ​​Check the model​​
   The 2022 and 2023 models of a domestic P3 outdoor screen have two generations of different chip solutions but the appearance is exactly the same. Xiaobai can't tell the difference - at this time, he has to go to the official website to check the production suspension announcement.

3. ​​Calculate residual value​​
   Recycling price of second-hand screen = new screen price × (1-year use/8) × color factor
   For example, the new screen has been used for 100,000 yuan for 3 years, and the appearance is 85 yuan, so the reasonable price should be 100,000 × (1-3/8) × 0.85 ≈ 53,000

▍ Text trap in the contract
Last year, a customer spent 80,000 yuan to buy a new "90% new" rental screen, but the power supply burned in three months. After turning the contract, I found that it said "Warranty does not include consumable parts" - these words are worth 40,000 yuan in repair fees! When signing the agreement, you must focus on the seller and add these two items:

1. Unconditional return and exchange within 7 days after arrival
2. Key components (light beads/power/control system) for 1 year

At the end of the day, second-hand LED screens are like blind dates - don’t just look at the appearance, you have to find out the details before you can live a life. Next time I meet a seller who claims to be "90% new" and "stocking machine", remember to let him shoot a video that he worked 24 hours in a row. After all, real gold is not afraid of fire, and the good screen can withstand the toss!

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