Ouch, your store is still using the kind of spray-painted cloth that fades when exposed to wind and sun? Lao Wang next door changed to a large LED screen last month. It is as bright at night as it is during the day, and the number of customers has doubled! Let’s talk about it today – a newbie wants to buy a door LED screen, how can he avoid being treated like a leek by the merchant?

Step one: first figure out what you want to buy

​​"The boss opened his mouth and asked me what screen P I had. What does P mean? "​ ​——Don't panic! Remember these three core parameters:

1. ​​Pixel spacing (P value)​ ​: The smaller the number, the clearer it is. For example, P6 is suitable for viewing from a distance of 5 meters, and P4 can read text clearly at a distance of 3 meters.
2. ​​Brightness level​ ​: Don’t believe in “super highlights”, just ask for the specific values. 800-1200cd/m² is enough for indoor use, and 4000cd/m² is required for outdoor use.
3. ​​Waterproof level​ ​: Look for IP65 certification! Last year, during the typhoon, water entered the screen of a store and short-circuited it. The repair cost was more expensive than buying a new screen.

Let’s take a real case: The owner of a corner milk tea shop bought a P10 screen for cheap. As a result, the customer standing across the street couldn’t see the promotional information clearly. He had to reinstall it in three months and spent an extra 20,000 yuan (who are you asking to explain this? ).

Is the channel water too deep? This table will help you take off the merchant’s underpants

​​Lessons of blood and tears​ ​: A clothing store owner bought a screen from a certain store. When it arrived, he found that the size was missing the thickness of the frame, leaving a 10cm gap. remember:​ ​Be sure to ask the seller to provide CAD installation renderings! ​ ​

Installation Acceptance Lightning Protection Guide

Don’t think that it’s done once you pay the money! These are the three links where things are most likely to go wrong:

1. ​​Bracket material​ ​: Must use 304 stainless steel! Ordinary iron frames will rust and wear out within two years. Last year, there was an accident where the entire screen fell from the third floor.
2. ​​Power wiring​ ​: Request a separate dedicated line! The circuit shared with the air conditioner must trip
3. ​​Debugging traps​​：
   • Play a pure red picture to check whether there is a dead light
   • Use your mobile phone to shoot in slow motion to see if there is any flicker
   • It is required to lower the brightness to 30% at night to prevent complaints about light pollution.

Here’s a little tidbit: regular installation teams will bring the “LED Display Light Intensity Test Report”. If the brightness exceeds 5000cd/m², you need to go through the urban management approval procedures (don’t wait to be fined to find out! ).

price moisture squeezing technique

Teach you three surefire tricks for bargaining:

1. ​​Off-peak purchasing​ ​: March-April and September-October are the off-season, generally 15%-20% cheaper than the peak season.
2. ​​Set meal routine​ ​: Don’t buy the “super value package” recommended by the merchant, buy the screen separately + find a local installer, and save 30%
3. ​​Account period negotiation​ ​: It is required to leave 10% of the balance to be paid after acceptance, and you will have the right to speak if you encounter problems.

Last year, the owner of a hot pot restaurant was stuck on this point. After discovering the color difference problem, he asked the merchant to replace it with a higher-end driver IC for free, which was equivalent to earning 5,000 yuan in upgrade fees (isn't this a cool operation? ).

After all, buying a door screen is like looking for a partner.——​ ​Don’t just look at the face (appearance), check the third generation (manufacturer background)​ ​. Next time you go into a store, don’t rush to ask about the price. Ask this question first: "Which chip company does your control card use?" Can you send me the motherboard circuit diagram? "Make sure the merchants don’t dare to fool you. Remember, money is spent wisely, and your facade deserves the best!

for more product information and pricing, please contact us .