Recently, people always ask me: Who should I buy from when installing a car display screen that crashes and goes black every time? Last week, I witnessed a friend driving an RV with his screen blurred on the highway and almost getting into an accident. This matter really cannot be dealt with casually. Today we will talk about the secret behind it.

​​Let’s first talk about the most common pitfalls for novices.​​
Many people search for "car LED screen" on a certain website and just buy the cheapest one. However, problems arise after only three months of use. You must know that the environment in the car is ten times worse than at home - vibration, temperature difference, and unstable voltage are all killers. Last year’s industry statistics showed that​ ​The repair rate for non-car-grade screens is as high as 47%​ ​, many merchants don’t tell you this data at all.

​​Look at these three points for core parameters​​

1. ​​Brightness must be adaptive​ ​: At least 4000cd/m² can be seen clearly during the day, but it will automatically drop to 800cd/m² at night without dazzling the eyes.
2. ​​The earthquake resistance level must be strong enough​ ​: Only those with military standard MIL-STD-810G certification can withstand continuous bumps.
3. ​​Temperature control system is indispensable​ ​: The working range of -40℃ to 125℃ can be said to be used all day long.

A friend who works as a tour bus complained to me that the screen I bought cheaply started to sparkle with snowflakes in the winter. Later, I changed to another company that could provide it.​ ​24-hour remote diagnostic service​ ​The manufacturer has run 200,000 kilometers in two years without any problems. So when it comes to vehicle-mounted equipment,​ ​After-sales service is more important than the product itself​​。

​​Hidden costs of installation​​
Even though some merchants offer low prices, you will only find out that you have to pay additional money when you install it:

• Customized bracket cost (accounting for 30% of the quotation)
• Anti-electromagnetic interference kit (must be installed)
• Three-year traffic service fee (starting at 800 per year)

It is recommended to directly contact someone who can provide​ ​Vehicle circuit modification plan​ ​of suppliers. According to statistics from a modification factory last year, customers who chose the wrong supplier spent an average of 12,000 yuan more on subsequent maintenance costs. Now smart buyers will ask to see it​ ​Real vehicle installation case video​ ​, just like a home inspection requires an existing home.

​​Golden Rules for Supplier Screening​​

1. Must present vehicle-level certification documents (don’t believe verbal promises)
2. Request to see the two-year operating data report of the same model of product
3. Confirm whether it includes anti-fog function in rainy days (users in the south should pay special attention)

The most exaggerated case I have ever seen: the screen of an internet celebrity’s RV became foggy during the rainy season, and the screen went black during the live broadcast, losing 50,000 followers. Later, I changed to another company that could provide it.​ ​Humidity real-time monitoring system​ ​manufacturers are still operating normally during the rainy season. So,​ ​Stability is the first priority for vehicle-mounted equipment​​。

Do you understand now? When choosing a car screen, don’t just look at the price parameters. Recently I heard that some manufacturers have developed​ ​Vibration self-check early warning system​ ​, can send out an alarm 30 days before the screen has a problem, this kind of preventive maintenance is really reliable. Remember, the purchase of in-car equipment is peace of mind, not decoration.

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