Oh, don’t say it, there are so many people who want to buy LED displays now! My cousin just opened a milk tea shop two days ago and insisted on promoting the entire display screen. But after searching the Internet, it was just a mess - from a second-hand screen worth hundreds of yuan to a high-end product worth hundreds of thousands of yuan, the price difference is like a roller coaster ride. Let’s talk about this today, and I guarantee that after seeing it, you will feel like a mirror!

1. How to choose the purchase channel? Online and offline are very different

Don't rush to pay, we have to figure out the way. Now there are two main ways:Online platform procurementandDirect supply from the manufacturer​. My cousin bought a screen on Taobao with cheap pictures, but after using it for three months, the color blocks broke out, which was more expensive than buying a screen! This tells us:Price is by no means the only standard​。

​Three major points to note on online platforms:​
▪ Check whether there are real factory videos in the store (don't believe in the renderings)
▪ Be sure to check the 3C certification number (can be verified on the official website)
▪ Ask clearly the warranty scope (some only protect the panel but not the circuit)

​Advantages of direct supply from manufacturers:​
Last year, I contacted a factory in Shenzhen and they took us directly to see the production workshop. What a good guy, the fully automatic patch machine was walking, and the quality inspector held a magnifying glass to check the lamp beads one by one. This production process that you have seen with your own eyes is much more reliable than the web page details page!

2. How to view product parameters? Remember these five key numbers

The most common mistake a newbie makes is being fooled by sales. Remember these hard indicators:

1. ​​Refresh rate starts at 1920Hz​(The video will flash below this number)
2. ​​The brightness should be divided into indoor and outdoor​(800-1200 indoors, at least 4000 outdoors)
3. ​​Protection level IP65 is the bottom line​(It is necessary to protect against rain and dust)
4. ​​Grayscale level 16bit up​(The color transition is natural)
5. ​After-sales response time(Suggested pass for more than 48 hours)

Wait, there are tricks behind these numbers! For example, brightness adjustment, some screens look bright during the day and are dazzling at night. Now all high-end screens come with​Intelligent photosensitive chip​, can automatically adjust brightness, this function is especially suitable for shops.

3. How to screen suppliers? Three steps to verify the correct body

Last year, I encountered this incident when I bought shopping malls: the quotations of the two suppliers were 30%, and the parameters were almost the same. Later, I went to the factory for on-site inspection and found that the cheapest one used a refurbished module! Here are three ways to inspect goods:

​​1. Lamp bead test method​
Let the manufacturer play the grayscale test image on-site (that is, the black and white gradient image) and take a photo with your mobile phone. If water ripples or color blocks appear, they will be eliminated directly!

​2. Box seam detection​
Focus on the gaps at the splicing. Take a piece of A4 paper to try to plug it in. The gap after the good box is spliced ​​is ≤0.5mm, which is particularly important for stage performances.

​3. Aging Experimental Report​
Regular manufacturers have 72-hour uninterrupted aging test records to check the operating data in high temperature and high humidity environments. Remember to report from the past three months and don’t fool people with last year’s!

4. Is the service very deep? These details should be paid attention to

The most outrageous case I have ever seen: a rental screen bought by a wedding company, and I found a few adapters on the day of the event! So be sure to confirm before signing the contract:
▪ Whether the technicians follow the scene
▪ The proportion of spare modules (10% recommended)
▪ Who bears the transportation insurance

There is a tip: ask the supplier to provide itInstallation diagram​. Professional companies will measure the venue in advance and even mark the location of the distribution box clearly. When installing screens for the school auditorium last year, the supplier even considered the impact of the air conditioner outlet on the screen, which is reliable!

5. How to break the price fog? A large analysis of cost composition

Don’t listen to the sales saying “manufacturer direct sales price”, let’s figure out the account:

• Raw material costs (light beads, driver ICs, cabinets) account for 55%
• Technology R&D dilution is about 15%
• Installation and debugging cost 10%
• After-sales service reserved 20%

If the quotation is significantly lower than the market price, 80% of them will cut corners in invisible places. For example, using recycled aluminum as a box, it looks similar, but the actual load-bearing difference is still the same!

At the end of the day, buying an LED screen is like finding a partner - you can't just look at the appearance, you have to look at the inside. I passed by Wanda Plaza two days ago and saw their newly-installed transparent screen, with a transmissibility of less than 85%. I was hungry when I watched the food video. This kind of good screen that can drive consumption is more expensive and worth it! Remember the old saying: There are no good goods when it is cheap, so you have to choose good goods carefully. If you look at it more, you will be able to find the screen that suits you!

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