Lao Zhang opened a milk tea shop on Lianhua Pedestrian Street last month. He originally wanted to install a cool LED screen to attract business, but he asked three companies for quotes ranging from 28,000 to 56,000. He was so angry that he cursed among the owners. This is really not an isolated case. Last year, 11 merchants in the Lotus Business District alone spent extra money because of the wrong LED screens...

cost trap set

Let’s settle the account first! The reasonable cost of an ordinary 5㎡ LED advertising screen in the Lotus area should be between 18,000 and 23,000. But why would someone quote a sky-high price of more than 50,000? There are three hidden charges hidden here:

1. ​​"Special construction fee"​ ​: If you encounter someone who says there is a 30% surcharge for steel structures, 80% of them are trying to rip you off.
2. ​​"Imported chips "premium"​ ​: Domestic mainstream chips are completely sufficient, don’t pay 50% more for foreign brands
3. ​​""Lifelong Maintenance" Routine​ ​: Those who dare to promise free maintenance for more than three years are truly reliable.

An owner of a hotpot restaurant complained to me that the maintenance fee for the 8㎡ LED screen he installed cost 8,600 in the first year. It was not as good as the product equipped with a remote diagnosis system. Nowadays, cutting-edge technology can predict faults through mobile APP, and maintenance costs have been reduced by 70%.

Nuclear bomb-level pit avoidance guide for site selection

When installing a screen in a business-intensive area like Lotus, if you choose the wrong location, the display will change in a matter of seconds. Last year, a clothing store spent 32,000 yuan to install a side-mounted screen. Because it faced the west sun in the afternoon, the screen looked blurry and looked like a mosaic. Remember these three golden rules:

• ​​window screen​ ​: The best position is 1.8-2.2 meters above the ground, avoiding the obstruction of street trees.
• ​​Door screen​ ​: Inclined at an angle of 15°, the probability of water accumulation on rainy days is reduced by 80%
• ​​column screen​ ​: If the diameter exceeds 60cm, a windproof bracket must be installed

There is a statistic you may not have expected: LED screens installed next to fire escapes need to be moved and reinstalled every two years on average. Therefore, before signing a contract, be sure to confirm whether the installation point is within the red line of the property planning.

Acceptance nirvana

Teach you three unique skills for inspecting goods to ensure you don’t suffer dumb losses:

1. ​​Check brightness at noon​ ​: Use your mobile phone to take photos and turn on the HDR mode. Only if the picture is not washed out is it qualified.
2. ​​Rain test​ ​: Use a mineral water bottle to imitate being washed away by moderate rain. If water seeps from the seams, return it directly.
3. ​​Play continuously for 8 hours​ ​: A screen with poor heat dissipation will change color, like the bottom of a pot that is burnt.

Last year, an Internet cafe owner relied on this trick to catch a profiteer using second-hand modules. Now the industry has begun to popularize intelligent temperature control systems. This type of screen can work stably at a high temperature of 55°C and has a lifespan of 3 years longer than ordinary products.

Question and answer time

Q: I heard that I need to pay a deposit?
A: If you encounter someone who charges an "electricity deposit", call the police directly! For the formal process, you only need to provide the shop circuit diagram and add a voltage regulator if the power consumption exceeds 10kW.

Q: How long does the approval process take?
A: Now the certificate can be issued within 3 days after applying online, which is 15 working days faster than in 2019. Remember to prepare the fire acceptance form and light pollution detection report in advance.

Q: What should I do if there is a sudden failure?
A: Focus on the response speed! There are many more truly powerful service providers who dare to sign a two-hour on-site agreement than those who boast of "national joint guarantee".

Last month, I visited an automated production base. The robotic arm on the assembly line was performing aging tests on LED modules. Worker Lao Li told me that now each screen must work continuously for 24 hours to be considered qualified. No wonder it is guaranteed to last for five years. So please remember, choosing an LED screen is like looking for a partner - those who are willing to show you the production process are the ones who really want to live a good life.

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