Alas, are you having a headache too - you want to make a large outdoor LED screen that is both power-saving and cool, but after searching the Internet, it is full of professional terms? What pixel pitch and IP protection level make people feel hurt, let alone those manufacturers who always quote hundreds of thousands of dollars... Don’t panic, today we will make it clear in plain language and teach you how to avoid cheating and find a reliable and energy-saving special-shaped screen!
1. First understand what "energy-saving special-shaped screen""
To put it bluntly, this thing isIrregular shape + electricity-saving black technologyoutdoor display. For example, the wavy advertising screen at the entrance of the mall or the circular scoreboard in the gymnasium are all its typical applications. But be careful! 30% of the products on the market that claim to be "energy-saving" have only reduced the actual power consumption by 10% compared to traditional screens., purely a marketing gimmick.
These are the hard indicators for real energy saving：
- Power consumption is reduced by more than 40%(For example, using common circuit technology)
- Automatic brightness adjustment(The sun soars to 5,000 nits, and it will automatically drop to 3,000 on cloudy days)
- Standby power <50W(The normal screen also needs 200W standby time)
2. 5 things you must ask before buying
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"Can you withstand the heavy rain in this screen? "
Depend on the protection level, Outdoors must start with IP65! A customer bought an IP54 screen with cheap pictures last year, but the control card was burned directly during the rainy season, and the repair fee was even more expensive than the screen.
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"How many curves can be made in the special curve? "
Now the top manufacturers can do it Arc splicing with a radius of 1 meter, the poor can only be done right angle splicing to pretend surface. Teach you a detection method: use a flashlight to shine on the surface of the screen. The continuous reflection is the real curved surface。
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"Will light pollution at night? "
Last year, a business district in Shenzhen was complained about the LED screen being too bright, and later it was installed. Light-sensitive automatic dimming moduleOnly solved. When selecting the screen, you need to confirm that there is Ambient brightness adaptive function。
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"Should I install scaffolding? "
A good special-shaped screen should look like a Pinlego—— Single box <15kg, two people can carry their clothes. I encountered an engineering team that could not drive into the alley when installing screens, and finally spent 30,000 more labor costs!
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"What to do if the light dies? "
Focus on after-sales terms! At least 3 years of free replacement of dead lights, don’t trust manufacturers that only have one year of insurance. There was a restaurant owner who used the screen for two years and found a large area of dead lights. The manufacturer ran away and had to pay 80,000 yuan to repair it.
3. The three links with the largest price and moisture
Material Cost(Say a chestnut):
| part | High-quality configuration | Shrink configuration | The difference |
|---|
| Lamp beads | Taiwan crystal chip | Domestic low-gray chips | 28,000/m2 |
| power supply | Mingwei Intelligent Power Supply | Miscellaneous ordinary power supply | 12,000/m2 |
| Structural parts | Aerospace aluminum magnesium alloy | Galvanized steel plate | 15,000/m2 |
Installation cost is incredible：
- Use second-hand screws for low prices (reinstalled if rusted)
- It is said that the installation package is charged but the aerial work fee is charged (200 extra per hour)
- The steel structure reinforcement fee is not included (suddenly additional charges of 20,000 to 30,000 yuan)
Maintenance cost trap：
- Remote control software has an additional fee (5,000 service fee per year)
- Replacement of lamp beads is charged 3 times the market price
- After the insurance, the test fee will be charged 2,000 per time.
4. Price comparison tips that experts use
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Let the manufacturer post real videos(Don't believe in the renderings):
- At 12 noon, the screen shows pure white
- Use your palm to shake it quickly in front of the screen to see if there is any dragging shadows
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Energy consumption test report：
Focus on Power value at the same brightnessSome manufacturers will lower the brightness to fake data.
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On-site inspection of production lines：
See if there is any Automatic reflow soldering machine(The solder joint is more secure),Constant temperature aging room(Testing for 72 hours of constant electricity)
5. The truth that the editor only understands after breaking through the pit
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"Imported chips "may be refurbished goods——Using magnets to absorb lamp beads, the ones that can be sucked must be inferior nickel-plated products.
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Don't touch if the quotation is below 30% of the market price——It is very likely to be renovated with a second-hand power supply, and the failure rate of this screen soars by 80% in half a year.
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The contract must be clearly stated "tax included in the shipping fee included in the contract"——Some customers were cheated on shipping fees, and the shipping fee for 18 tons from Shenzhen to Beijing is 27,000 yuan.
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Don't just look at the color screen for the test video——Let the manufacturer play a gray gradient picture for 30 minutes, and the original shape of the screen with uneven colors will be immediately revealed.
6. Ultimate Soul Questioning: Buy online or order offline?
Online platformThe advantage is that it is easy to compare prices, but it is easy to argue when encountering problems. Last year, a merchant from Taobao sold "customized screens". After receiving the goods, he found that it was cut from a standard screen, which took three months to protect his rights.
Offline manufacturerAlthough it is a little more expensive, the best ones will provide:
- 3D simulation installation effect(Avoid the big gap between physical objects and imagination)
- 48 hours of response to repair(It must be guaranteed before important activities)
- Free plan design(Professional engineers come to the door to measure)
A guy who works in a bar insisted on saving the design fee himself, but the circular screen installed was too close to the dance floor, and the customer was blinded and complained, and finally spent 80,000 yuan to reinstall...
After all, buying an energy-saving special-shaped screen is like finding a partner - you can't just look at whether the appearance is cool or not, but whether the inside is real or not. Brightness, protection, and after-sales service are like people’s views. Only when they are co-produced can they last for a long time. Next time you go to inquire, just take this article on the other person’s face, and you will definitely not dare to fool you!
