Have you been flooded with various display advertisements recently? What are P2.5, 3840Hz refresh rate, nanoprotective coatings... These professional terms sound like a big deal, right? Don't worry, let's talk about something real today. Last week, a little girl who runs a milk tea shop asked me: "Sister, I want to install a moving billboard at the door of the store. How can I choose to avoid being cheated? "This is a question!

1. If you don’t meet the needs, it will be useless to spend more money.

​​Soul-question: Do you plan to use your advertising screen for three years or three months? ​ ​
Don't rush to see the parameters! We need to first understand a few key issues:

• ​​Installation location​​: Installed in a pedestrian street to prevent kids from kicking (see IP65 protection level), the indoor shopping malls must consider heat dissipation issues
• ​​Play content​​: If you put dynamic advertisements every day, you have to choose​​Refresh rate ≥1920Hz​​The screen, otherwise the videos taken will be all corrugated
• ​​Maintenance cost​​: Don’t just look at the money you buy the screen. The electricity bill is the big one in the later stage (the outdoor screen can save 30% of the electricity bill if you choose automatic dimming)

Let me tell you a real story: Last year, the owner of a beauty salon bought a second-hand screen with a cheap picture, but it turned out that the screen was black after using it for two months, and the repair fee was enough to buy three new screens. So,​ ​Buying an advertising screen is like buying an air conditioner. You can’t just look at the price, you have to calculate the long-term account.​​。

2. Don’t be fooled by parameters, focus on these three indicators

​​The question is: Which parameters are really useful in sales? ​ ​
It's enough to remember these three life-saving indicators:

1. ​​Starting with brightness 4000cd/m²​​: The brightness of the outdoor screen is not enough, and it looks like it is invisible under the sun.
2. ​​Grayscale 16bit+​​: This determines that the color transition is unnatural, just like the difference between 720P and 4K on mobile phone screens
3. ​​Viewing angle ≥160°​​: People across the street must also see the content of the advertisement

A customer complained to me that the screen he bought changed color from the side. After checking the parameters, I found that the horizontal viewing angle was only 120°. Isn’t this a special screen for the watchtower? So,​ ​Parameter table is not a heavenly book, you must be able to focus on the key points​​。

3. The procurement channel is deep, so the most stable choice is

Here is a real comparison table for you:

Let me tell you the bottom line: Nowadays, many middlemen sell engineering products as new products, and this kind of screen system upgrade may become a brick. Last month, a catering chain was hit and ten screens went on a collective strike. So,​ ​Just look for manufacturers with a monthly output of more than 10,000 square meters, which is ten times more reliable than finding purchasing agents.​​。

4. 6 things you must make clear before signing a contract

Don't rush to sign! Leave these problems to sales:

1. Does the warranty package include power supply and control system? (These two are the most likely to be broken)
2. Do I need to charge additional fees for door-to-door installation? (The high-rise hoisting fee may be more expensive than the screen)
3. Are there any hard-core certifications such as CE/CCC?
4. Can the software system be upgraded for free for life?
5. Is the fault response 24 hours or 24 working days?
6. Are there any successful cases of the same type to be examined?

Last year, a gym owner suffered a great loss, but the contract did not clearly state the installation terms, and the big screen lies in the warehouse for half a year. Later, I added money to ask someone to install it, and all the members ran away. ​ ​It is better to write it in black and white than any promise​​。

5. The editor whispers some inside stories in the industry

Just buying an advertising screen is just like buying a house to look at the strength of the developer. I particularly value these three points:

1. ​​R&D laboratory​​: It must be a high-tech enterprise with national stamps, and the patent certificates are thicker than dictionary
2. ​​Production workshop scale​​: The workshop is not as big as a football field, I advise you to think about it again
3. ​​Export qualifications​​: The quality of those who can be sold to Japan and South Korea is absolutely not bad

I have seen a very interesting data recently: 87% of high-quality screens are now exported to developed countries. What does this mean? Other people’s quality inspection standards are the industry ceiling! So,​ ​Follow the choice of international buyers, you will basically be fine​​。

What are you going to ask me about the truth? I think buying advertising screens now is like buying smartphones - the technology is updated too quickly, and we must find a manufacturer that can continue to upgrade. Those who are still selling old technology five years ago will close sooner or later. Remember,​ ​A good screen can speak by itself, the key is to find a seller who can speak humans.​​！

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