Have you always seen reports of large LED screens catching fire in the news recently? There have been incidents in the advertising screen on the roof of the mall, the background wall of the concert stage, and even the instructions on the expressway. You might have to ask:​ ​Isn't it said that the LED display is very safe? Why do you burn at any time now? ​ ​ This matter really has to start from the beginning.

1. Ranking of high-incidence areas for fire accidents

According to statistics on public reports in the past five years,​​80% of LED fires are concentrated in three places​​：

1. ​​Outdoor high altitude advertising screen​​: Especially installed outside the glass curtain wall, direct sunlight in summer + self-heating = double critical hit
2. ​​Temporary stage screen building​​: Those rental screens that work overnight and use second-hand boxes are the most dangerous
3. ​​Old commercial complex​​: Indoor LED walls that have not been maintained for more than 5 years, and the line aging is comparable to a time bomb

Last year, the advertising screen on the roof of a landmark building in a Southeast Asian city caused a fire due to a cooling system strike. At that time, the flames fell down the curtain wall and almost burned to the parking lot downstairs. Do you think it's scary?

2. Three deadly culprits of fire

​​Don't think that the display screen is a natural disaster, but it is mostly a human disaster.​​. Disassemble those burnt screens and you will find:

• ​​Lines are like spider webs​​: In order to save trouble, some installation teams tied the 220V power cord and signal cord together, and shorted it in minutes.
• ​​The heat dissipation depends entirely on luck​​: Have you ever seen an ordinary electric fan blowing against the back of the screen? As soon as the temperature rises 40℃, I will catch it blind
• ​​Cut corners on materials​​: Use plastic shells to impersonate flame retardant materials, and the fire spreads faster than weeds

Once I went to the repair site and found an outrageous case - a shopping mall blew the air conditioner outlet against the display screen, and the condensate water shorted the circuit board. This kind of magical operation is really hard to defend against.

3. How to guard the safety line?

Now I know what the problem is,​​How do reliable manufacturers do it​​? Let me tell you a few hardcore operations:

1. ​​Fully automated production line​​: Even the torque of a screw must be detected by sensors, which feels more accurate than the master
2. ​​48-hour baking machine test​​: The new screen must be operated in a high-temperature room of 50℃ for two consecutive days, and those who cannot withstand it will be eliminated directly
3. ​​Aviation-grade structural design​​: The box is made of aluminum-magnesium-zinc alloy, which is not broken and fire-resistant, three times stronger than ordinary aluminum
4. ​​Intelligent temperature control system​​: Built-in temperature sensor, which automatically reduces brightness when overheating, just like adding antipyretics to the screen

There is a detail you may not pay attention to——​​The heat dissipation holes on the back of the display are not open casually​​. Fluid mechanics simulations must be performed based on the wind direction and installation angle to ensure maximum air circulation efficiency.

4. These places are the most reassuring

Not that all LED screens are dangerous, these types of scenarios are particularly safe:

• ​​Stadium fence screen​​: IP65 protection level, stable output on heavy rain
• ​​Bank exchange rate screen​​: The old soldier who runs 7x24 hours a day and does not shut down for ten years
• ​​Transparent window screen​​: 86% transmissiveness design, natural heat dissipation conditions

Look at the ultra-thin transparent screen in a business district in Seoul, which was installed in a glass mezzanine for five years and has zero failures. The key is the reasonable structural design and the heat can be quickly exported through the metal frame.

5. Guide to buying screens to avoid pits

Finally, give some tricks to the newbies.​​Remember to keep an eye on these points when selecting the screen​​：

• Touch the seams of the box, pass with burrs
• Look at the diameter of the power cord, pass below 4 square millimeters
• Ask about the warranty period, I dare not promise a five-year pass
• Check the test report, pass that has not been tested for salt spray

Don't believe in the "military quality" trick, let the manufacturer demonstrate it on the spot​​Emergency power outage function​​. A reliable screen can cut off the power in 0.5 seconds, which is the real skill.

After all, LED display safety depends on the product three points, and conscience seven points. Next time you see the cool large screen in the mall, you might as well pay attention to its cooling hole design - that is the manufacturer's powerful demon mirror. remember,​ ​There are no electronic devices that will not catch fire, only careless manufacturers​​。

for more product information and pricing, please contact us .