You must have seen that low-quality screen that flickers as soon as it is installed, right? Just like the newly installed advertising screen in a shopping mall last week, color blocks suddenly appeared during the broadcast, just like a mosaic. This incident made me suddenly realize that buying an LED advertising screen is much more complicated than choosing a mobile phone. What newbies want to ask most is probably: Where should I buy such a large item that costs hundreds of thousands without going into trouble?

​​Let’s talk about a real car rollover case first.​ ​. Last year, the purchasing department of a supermarket chain bought a batch of "special price screens" from a wholesale market for cheap. On the day of installation, one-third of the modules were found to have uneven brightness. What's even worse is that the after-sales phone line is always busy, and they can only be disposed of as scrap metal. You see, the cost of choosing the wrong purchasing channel is enough to buy two new sets of equipment.

There are currently three mainstream purchasing channels. Let’s compare them in the most practical way:

Here’s a piece of trivia that may shock you:​ ​A truly professional manufacturer, the official website has a live entrance to the workshop.​ ​. Just like eating hot pot depends on kitchen hygiene, buying a large screen depends on whether the production line has hard-core configurations such as a fully automatic placement machine and a 48-hour aging test room - these are the key to determining whether the screen will become "pockmarked" in three years.

When it comes to installation and maintenance, novices are most likely to fail​ ​Box structure​ ​superior. The most outrageous thing I have ever seen is that someone used a rental screen as a fixed screen, but after half a year all the screws were rusted. Here’s a tip: Check to see if the product has a salt spray test report. Especially for projects in coastal cities, it must be confirmed that the protection level reaches IP65 or above.

​​Focused​ ​! How to judge whether the manufacturer is really reliable? Remember these three "must-sees":

1. You must watch real-life videos of similar projects (pay attention to the nighttime display effect)
2. You must read the component purchase list (lamp bead brand and driver IC model must be written in black and white)
3. You must see the qualification certificate of the installation team (not everyone has a high-altitude operation certificate)

A key point suddenly occurred to me:​ ​Brightness intelligent adjustment technology​ ​Now it’s a touchstone. Some screens are so large that you can see clearly during the day, but they are blinding at night. A truly good screen should be able to automatically match ambient light, such as 800-1200 nits indoors and 4000 nits outdoors. Only those who dare to write these parameters in the contract are truly capable.

Speaking of after-sales, a new trend has been discovered recently:​ ​24 hours response​ ​It’s not enough anymore. What we pay attention to now is preventive maintenance, just like car maintenance. Some manufacturers will remotely detect the status of the screen regularly and notify you in advance to replace the aging module. This is a life-saving feature for mall operators – it’s better than a black screen on the opening day, right?

Editor's opinion: Buying an LED advertising screen is like looking for a marriage partner. Don't just look at the appearance (display effect), the key is to look at the family background (production technology) and sense of responsibility (after-sales service). Next time you pass by a shopping street, you might as well pay attention to those screens that can withstand the sun and rain and still have delicate images - there must be a manufacturer behind them who puts quality as their lifeblood.

for more product information and pricing, please contact us .