Why do other people's LED screens attract customers, but yours becomes "electronic waste"? Recently, a restaurant owner complained to me that the display screen he bought for RMB 80,000 showed color patches falling off after half a year, and the maintenance cost was more expensive than buying new equipment. This situation is not uncommon - data shows that 34% of buyers have to bear maintenance costs equivalent to 127% of the equipment price within three years. Today we will talk about how novices can choose LED screens without paying IQ tax.

​​Must read before buying: These three parameters determine whether your money is worth it​​
Many people stare at the price and haggle, but don’t know​ ​Refresh rate 1920Hz​ ​means nothing. Simply put, the higher the value, the less likely smear will appear when playing fast images. Just like when you watch a live racing car, the screen will become blurred if it cannot keep up with the speed of the car.

Say it again​ ​Smart brightness adjustment​ ​, this is a power-saving tool. An indoor screen adjusted to 800cd/m² is sufficient, but some businesses sell outdoor screens with a fixed 5000cd/m² to restaurants. As a result, customers are blinded and have to pay 41% more for electricity.

last look​ ​Grayscale response 0.8ms​ ​, this parameter directly affects the fineness of the picture. Especially when playing close-ups of food, 0.8ms can make the fat on the steak clearly visible, while devices with 1.5ms or above can only see blurry reflections.

​​Online shopping VS offline shopping real comparison table​​

​​The installation location determines life and death: Never install in these places​​
A milk tea shop owner installed a screen directly under the air outlet of the air conditioner. As a result, water leaked and was repaired three times in six months. Remember these three death zones:

1. ​​Kitchen passageway​ ​: Oil smoke will block the heat dissipation holes, and the failure rate will increase by 2.8 times.
2. ​​direct sunlight area​ ​: Under strong UV irradiation, color decay reaches 35% in half a year
3. ​​sidewalk edge​ ​: Accidental collision repairs are more expensive than the equipment itself

What if it has to be installed in a dangerous area? select​ ​IP65 protection level​ ​Although the equipment is 15% more expensive, it can save 72% of maintenance fees in three years.

​​Price fog: teach you how to expose merchants’ tricks​​
The quotation says "6,800 yuan per square meter." Do you think it's cheap? Wait! Ask about these hidden fees:

• Steel structure bracket: Cheap galvanized pipes will rust in 3 months, so it costs 500 yuan/㎡ to change to stainless steel
• Content production fee: Dynamic video templates actually cost 2,000 yuan/piece
• Remote debugging fee: if the radius exceeds 5 kilometers, 800 yuan will be charged for each visit.

There is a trick - requiring the package price to include three years of maintenance, so that subsequent expenses can be locked within 18% of the equipment price.

​​Soul torture: Is LED screen really necessary? ​ ​
This question is scored based on scenarios. Replacing labor with ordering screens in fast food restaurants can indeed save 20% of labor costs. However, if you open a high-end Japanese restaurant and customers want a private atmosphere, installing a flashing display will ruin the style.

There is very interesting data: a window display with intelligent interactive functions can extend the stay time of passing customers from 7 seconds to 23 seconds. But if you only use it to play discount information on a loop, the money will be wasted.

Editor's opinion: Some merchants now boast of "military-grade quality" and end up using second-hand chips as inferior ones. Remember, good equipment does not need to be exaggerated.​ ​Check the actual measured data​ ​That's the kingly way. The most honest supplier I have ever seen directly shows customers the five-year failure rate statistics - only those who dare to be so transparent are reliable.

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