Alas, where should I buy a large LED screen if I want to install it?

Recently, I always met a friend and asked, "Where did you buy LED advertising screens all over the streets?" "To be honest, this line of water is so deep! Last month, Lao Wang, who just helped open a gym, built a stage floor tiled screen, but found that there are more than 20 aspects to pay attention to when choosing a supplier. Let’s talk about how ordinary people avoid those pitfalls.

The first stop: search online or offline?

​​Remember this formula - online screening manufacturer, offline test capabilities​ ​. When I bought the shopping mall last year, I found that 80% of manufacturers now have official displays:

• Watch the real video of the production workshop (note whether there is an automated assembly line)
• Check international certification numbers (ISO9001/CE are not decorations)
• Focus on monthly production capacity data (check for those below 5,000 square meters)

It is quite interesting to have a factory in Shenzhen. The official website directly has a 24-hour monitoring screen, and even the quality inspector can see how the box splicing accuracy is measured. But don’t just place an order on the web page. It’s best to go to the factory to touch the real thing - I’ve seen the promotional picture P as mirror-like, and the real pixels can be stuffed into sesame seeds!

How to squeeze the price of water?

Here is an abnormal knowledge:​ ​Low price ≠high cost performance​ ​. A chain supermarket procurement case was particularly typical last year:

In the end, I chose the expensive one and saved 230,000 yuan. Why? People use aluminum, magnesium, zinc alloy box, which has not deformed for five years. Therefore, bargaining must be good at cutting the edge. Focus on these three parameters:

1. Can the refresh rate be stable above 1920Hz (test by using the phone to shoot videos in slow motion)
2. Intelligent brightness adjustment range (only 800 jumps in the indoor area)
3. Is the protection level real IP65 (splashed on site with bottle of mineral water)

How to judge after-sales guarantee?

Here are some tips for you:​ ​Try calling at 2 o'clock in the middle of the night​ ​! The reliable supplier technical response center is really on standby 24 hours a day. Last year, there was a gymnasium project in Tokyo, and local engineers took a red-eye flight to repair the screen - this level of service is the real guarantee.

Don't miss these items when looking at the contract:

• The fault response time is accurate to hours (liquidation of liquidated damages if it exceeds 4 hours)
• Radiation radius of spare parts warehouse (preferably there is a warehouse within 300 kilometers)
• Is the software upgrade free for life (system compatibility is too important)

Personal experience talk

After working in this industry for more than ten years, I found a rule: manufacturers who dare to broadcast the quality inspection process live, their products are basically not bad. Recently I heard that a factory had a slutty operation - each screen had to undergo 168 hours of salt spray test before leaving the factory, and afterwards, I also sent a test video to the customer. This kind of seriousness is better than selling for a long time.

The final nagging sentence: Buying an LED screen is not a one-time deal, it depends on whether the other party can play with you for five or ten years. Next time, I saw the salesperson who was so hilarious, and asked him directly: "Can you still find the brightness of the person after you have installed this screen for three years? "

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