Have you ever seen a rotating spherical screen in the mall? What tricks do those dynamic advertisements floating in the air hide? More importantly, who should I buy this cool device? Don't worry, let's break it up and talk about this matter today.

How difficult is it to rotate a spherical screen?

Can an ordinary LED screen be rotated by installing a motor? That's a big mistake. A rotating screen that can truly display without blind spots at 360° must solve three major problems:​ ​The lines are constantly cracked, the picture is not tear, and the structure is not deformed​ ​. Imagine that if you turn 300 times per hour, you must ensure stable power supply. You cannot have any smear when playing 4K videos, and you cannot fall apart when you encounter naughty kids - this is much more expensive than an ordinary display.

Reliable products on the market now​ ​The power consumption per hour can be controlled within 3 degrees​ ​, 30% less power than traditional solutions. What's even more amazing is the use of wireless power supply technology, which completely gets rid of the trouble of entanglement of power cords. You know, one less wire means fewer failure points.

Four tips to help you avoid purchasing pitfalls

1. ​​Look at the speed matching​​
   Don't believe the nonsense of "the faster the speed, the better"! ​ ​It is recommended to use 30 rpm for advertising, and it is recommended to use the stage to achieve 120 rpm for stage use.​ ​. A shopping mall suffered a loss and bought a high-speed screen. The customer said he was dizzy and finally had to use it slow down.

2. ​​Calculate the cost of implicit formation​​
   Don't just stare at the price of the screen! The installation fee usually accounts for 20%.​ ​Steel structure brackets cost 800-1200 yuan more per square meter​ ​. What’s even more scammed is that some manufacturers charge “dynamic debugging fees”, and the money is not asked clearly in advance, and it will definitely hurt during settlement.

3. ​​Anti-screen fault​​
   Be sure to test the crossover animation on-site! Some bargains appear when they go to a specific angle, because​ ​The lamp beads are not arranged enough​ ​. The industry-recognized standard is that the spacing is ≤2.5mm, and no matter how large it is, it will be exposed.

4. ​​Check the protection level​​
   Restaurant owners pay special attention! At least choose​ ​IP54 protection level​ ​, otherwise the oil smoke will be able to block the heat dissipation hole in three months. A hot pot restaurant has learned a lesson from a bloody and tears - their screen was repaired three times in half a year, and finally found that butter blocked the air inlet.

The secret to saving money that experts won't tell you

● ​​Save 15% off-peak purchase​ ​: March to May is the off-season every year, and manufacturers would rather cut prices than stop working.
● ​​Rent and buy more cost-effective​ ​: Recommended rental for short-term activities, monthly rent = total price × 3%
● ​​Save freight for group purchase​ ​: Get orders of 50 square meters, and the logistics cost can be cut in half

There is a smart wedding company that sets the price of spherical screens as​ ​888 yuan/hour​ ​, and the orders are arranged every day during peak season. What's even more amazing is that they have added a proposal barrage function to the screen, and this service alone makes an extra profit of 20%.

Three fatal problems are verified on the spot

Q: Will it get stuck while spinning?
A: Let the manufacturer get the motor life test report.​ ​No trouble for 100,000 hours​ ​It's the passing line. Pay attention to whether the bearing is aerospace-level, this is not the same.

Q: How long can the video be broadcast?
A: Good screen dares to make promises​ ​24-hour round​ ​. During the test, 4K video was played for 8 hours and touch the direct pass with a heat sink temperature exceeding 60℃.

Q: Will repairs be troublesome?
A: Modular design is the king! Request a demonstration to replace the lamp beads.​ ​Can't handle it in 5 minutes​ ​None of them are reliable. There was a scenic spot that bought bad goods. It took three months to change parts to import accessories, and I regretted it.

These data should be engraved on your forehead

• Self-weight per square meter ≤32kg (too important to reinforce the floor)
• Standby power consumption ≤0.5W/hour (the electric charge killer is now in its original form)
• Color gamut coverage ≥130%sRGB (the color is not correct and destroys all)
• Noise value ≤45 decibels (as if the air conditioner is sounding when quiet)

Last year, a music festival used a low-quality rotary screen. The audience complained that it was "like looking at an old-fashioned drum washing machine", and the organizer was directly criticized as a hot topic. So,​ ​The money saved is not enough to buy reputation​ ​, merchants should understand this principle.

Tell some truths that offend people

Now some manufacturers sell old screen modifications as new products. I will teach you a trick to identify them: please see​ ​Batch code of lamp beads​ ​, the number of numbers in the same batch is the original product. Another industry secret - the real good screen dares to sign​ ​Three-year refund agreement​ ​Those who have only been insured for one year are feeling empty.

Next time, when I see a quotation below 20,000 yuan per square meter, I asked him directly if he dared to sign a performance bet agreement? If the playback fluency is less than 98%, the refund will be made. This trick can screen out 90% of the people who are catching up with troubled waters. Remember, buying a rotating screen is not buying cabbage.​ ​The money saved will sooner or later become a repair order​ ​, this is definitely correct!

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