"If you want to buy a monochrome LED display, open the shopping website and find that the price ranges from hundreds to tens of thousands. Who should you believe in? "This may be the most troublesome problem for novice novice. According to statistics, in the 2024 online transaction dispute of LED display screens,​ ​63% are due to selection errors and channel problems​​. Today we will break it apart and talk about how to avoid these pitfalls.

1. How deep is the water in the purchasing channel?

You may not know that the price difference between display screens with the same parameters can reach 300% through different channels. Let's look at the group data first:

• ​​Online platform​​: The average daily transaction exceeds 100,000 orders, but the return rate is as high as 18%.
• ​​Project Procurement​​: 85% of buyers require on-site factory inspection, with three key points: whether there are automated production lines, whether the quality inspection process is complete, and whether the inventory turnover is fast
• ​​Special channels​​: For example, the second-hand equipment market, although it is 30% cheaper, the dark disease rate exceeds 45%.

A friend bought a P10 monochrome screen on an e-commerce platform last year. The merchant said it was "waterproof and dust-proof", but the screen was short-circuited in the rainy season. After disassembling it, I found out that​ ​Back panel sealant only has 50% coverage​​, this kind of cutting corners is too common in online products.

2. Selection of the three golden elements

Here is a formula to remember:​​Brightness × Protection × Control = Service life​​. Let's give an example:

• ​​Milk tea shop door​​: Brightness 5000 lumens is enough, but IP65 waterproof must be selected (not afraid of rainy days)
• ​​Factory workshop​​: You must bring a dust cover, and choose 4G remote control method (save workers to climb ladders every day to change their characters)
• ​​School bulletin board​​: The most cost-effective WIFI control, it can be done in one minute when changing the word on your phone

The key point is here! ​ ​Don't be fooled by "high brightness"​​. Using a 5,000 lumen screen indoors is like installing a searchlight in the bedroom, which not only costs electricity but also hurts the eyes. Remember this parameter comparison table:

3. The trick of price composition

Open the quotation and you will find that​​Hardware costs only account for 60%​​. Where is the remaining 40% spent?

1. ​​Intelligent control system​​: With mobile APPs, you can use 25% more expensive than button-type
2. ​​Installation Service​​: The cost of working at high altitudes may be more expensive than the screen itself
3. ​​Invisible after-sales service​​: The difference between three-year warranty and one-year warranty is 15%

Recently, there was a case where a property company bought a display without after-sales service with a cheap price, but it broke 5 times in half a year, and the maintenance fee was enough to buy a new machine. So remember,​ ​Choose suppliers with 24-hour technical support​​, can save lives at critical moments.

4. Inspection skills that experts know

Teach you three unique skills in inspection:

1. ​​Touch the border​​: The thickness of high-quality aluminum frame is ≥2mm, and the inferior quality is as thin as a can
2. ​​Look at the soldering points​​: Use a mobile phone macro to shoot the light board. If the solder joints are full, it can last for 5 years, and if there are burrs, it will last for 2 years.
3. ​​Test response​​: Slide text quickly, and the serious shadow is definitely the driver chip cutting corners

Last time I visited a display factory, I found that there was a production line​​Six-way quality inspection process​​, even the screw torque must be detected with a digital display wrench. This kind of product that controls details can be used to make it more reliable.

5. Products that may be eliminated in the next three years

These types of advice do not touch:

1. ​​Pure button control screen​​: The operation is as complicated as an old DVD, and will be eliminated sooner or later
2. ​​Non-standard size module​​: No accessories can be found if they are broken
3. ​​No intelligent dimming function​​: Not only does electricity cost, it may overheat and burn itself in summer

Now some cutting-edge products can already do it​​Standby power consumption 0.5W​​, 70% less power than traditional products. Although it is a little more expensive, the electricity bill will be paid back in two years.

​​Editor's opinion​​: Recently I found an interesting phenomenon - buyers who can choose screens are all staring at three indicators: lamp bead brand (is it the top five in the industry), drive plan (common negative or positive), and warranty terms (the package does not include human damage). There is a guy who runs a chain store that is even more amazing. He specializes in choosing manufacturers with a monthly production capacity of over 10,000 yuan, saying that companies of this size dare not cut corners. After all, mass production cannot afford to be tricky. Think about it, in the industrial era, sometimes it is more reliable to look at the factory size than to look at the parameters.

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