Why are other people’s advertising screens always more eye-catching than yours? Where should newbies who want to buy LED advertising screens start to avoid being taken advantage of? Today we will reveal the inside story of this industry and teach you step by step how to avoid pitfalls.

​​When looking for a manufacturer, you should pay more attention to the right match than finding a partner.​​
Last week I met the owner of a hotpot city. The scrolling screen he bought for 200,000 yuan started to suffer from color blockage after half a year. After taking it apart, I found that the driver chip was an old model from five years ago, and the waterproof glue on the power module was cracked. Therefore, when buying a large screen, you must first pay attention to these hard indicators:

• ​​Is there an automated assembly line in the production workshop?​ ​(The failure rate of a factory with a monthly output of 10,000 square meters can be reduced by 60%)
• ​​Do you dare to publish the quality inspection report?​ ​(CE certification is the basis, and knowledgeable people will also read the lightning protection test report)
• ​​Is the technical team on call 24 hours a day?​ ​(Who can I fix if the screen goes black during a concert at three in the morning? )

Here’s a little tidbit: Really professional manufacturers will consider maintenance issues during the design phase. For example, pre-embed quick-release buckles in the box, or attach waterproof labels to each module. The most incredible case I have ever seen is that an outdoor screen made by a manufacturer for a Middle Eastern customer can work continuously for three years at a high temperature of 50°C without failure.

​​The truth behind the price fog​​
Don’t be fooled by sales talk, first understand these cost components:
① The cost of lamp beads accounts for 35% (for the same P6 specifications, Nichia chips are three times more expensive than domestic ones but have a lifespan of five years longer)
② Structural parts account for 25% (the aluminum-magnesium-zinc alloy box is more expensive than iron sheet, but it will not rust for ten years)
③ The technical service fee accounts for 20% (those who say free installation will charge you 800 for changing the cable later)

Let’s take a real price comparison example:

• Second-hand refurbished screen: 80,000/piece (risk index ★★★★★)
• Small workshop customization: 120,000-150,000 (most of those who dare to write a five-year warranty period will not last two years)
• Regular factory direct sales: 180,000-250,000 (with intelligent brightness adjustment and remote monitoring functions)

​​Question and answer time​​
Q: How to judge the screen quality?
A: Bring a strong flashlight to the scene to look at the seams of the screen. If you can see obvious light leakage, it means the packaging process is unqualified. Then let the manufacturer broadcast a high-speed racing video, and if there is smear, pass directly

Q: What is the difference between outdoor screens and indoor screens?

• Brightness: Outdoors must be at least 4000cd/m² (just like watching a mobile phone under the sun, you have to adjust the brightness to the highest level)
• Protection: IP65 is the bottom line (it must be able to withstand heavy rain)
• Heat dissipation: You must have an intelligent temperature control system (have you ever seen a case of a screen spontaneously igniting? )

Q: Is installment payment cost-effective?
Don’t believe the “zero down payment” trick! Regular manufacturers require 30% advance payment, but will include on-site service for three years. There was a clothing store owner who chose the installment plan because it was cheaper. As a result, water broke into the screen in the second month, and the installment company was not responsible for repairs at all.

The editor finally says something from the bottom of my heart: buying a large scrolling screen is like buying a precision instrument. Those manufacturers that dare to let you visit the factory and provide time-lapse photography of the installation process are worth considering. If the other party doesn't even dare to provide a video of the actual case and talks about "client confidentiality", block it as soon as possible and switch to another company. Remember, a good screen speaks for itself - look at those advertising screens for international events and commercial landmarks, which one has not been carefully selected?

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