Do you know? The LED large screen of the same size can be 3 times the electricity bill difference! When many novices purchase for the first time, they only stared at the price bargaining, but after using it for two years, they found that the meter turned faster than the display screen. Let's talk about it today.​ ​Where to find a truly cost-saving energy-saving screen​​？

1. Why is it said that "energy saving" is not a gimmick?

To give a real case: a commercial center has replaced a new screen, and the monthly electricity bill for 8 outdoor large screens has been reduced from 120,000 to 48,000. The key lies in three hard indicators:

1. ​​Light bead efficiency​​: Wicks with luminous efficiency ≥130lm/W, which can increase brightness by 30% while saving power
2. ​​Power supply design​​: Synchronous rectification technology reduces energy consumption by 25%, which is equivalent to turning on 5 air conditioners every day
3. ​​Thermal system​​: The screen with dual circulation heat dissipation structure, the surface temperature can be 12 lower than that of ordinary screens in summer℃

​​_Focus on_​​: Don’t be fooled by the “energy-saving” label, it depends on whether there is a third-party certification. Combination certifications like ISO9001+CE can basically screen out 80% of false-label products.

2. Online and offline channel competition

Here is a comparison table for you, and after reading it, you will understand where to buy:

Recently, a friend ordered a whole product online. The parameters were pretty, but when I got it, I found that the brightness did not meet the outdoor standards at all. Later, I asked a professional to check and found that the power module was cut corners.——​ ​The nominal 4000cd/m² is actually only 3200​​, large offline manufacturers will basically not step on such pitfalls.

Three or five practical pit avoidance guide

1. ​​Look at the arrangement of lamp beads​​: The lamp beads of high-quality energy-saving screens are as neat as military training queues, with a spacing error of ≤0.02mm
2. ​​Touch the heat sink​​: After 30 minutes of turning on the machine, your fingers can be attached to the heat sink for 5 seconds and not hot.
3. ​​Test automatic dimming​​: Use a flashlight to shine the light sensor probe on the screen, and the screen will become dimmed in 3 seconds.
4. ​​Check the power interface​​: The power cord of a truly energy-saving screen will be 20% thinner than that of an ordinary screen because the current requirement is small
5. ​​Ask for warranty terms​​: Manufacturers who dare to promise that their light decay ≤15% in 3 years will definitely use top-grade lamp beads

Last week, I met a typical screen that was called "super energy-saving", but when I swept it with a thermal imager, the local temperature actually soared to 68℃! This kind of screen will have to burn the driver IC in less than two years.

4. Three major questions that novices care about most

​​Q: The online price is so cheap, can you buy it? ​ ​
A: Depend on the situation! If it is a simple screen with a spacing of more than P10, you can consider ； But like a small-pitch screen below P2.5, breaking a lamp bead during transportation may cause the entire screen to be scrapped. The return data from last year's Double Eleven is very telling——​ ​The return rate of high-end screens is 7 times that of ordinary screens​​。

​​Q: How to judge whether it is really energy-saving? ​ ​
A: Bring a portable power meter for field testing. When playing a full white screen, the power consumption per square meter is ≤650W. There is a trick - let the merchant compare two screens of the same size, turn on the maximum brightness to touch the temperature of the power module, and there must be a problem with the obvious temperature difference.

​​Q: Is the refresh rate of 1920Hz mentioned by the manufacturer useful? ​ ​
A: This has a great impact on energy conservation! The higher the refresh rate, the longer the effective luminescence time per unit time. Actual measurement data shows that the 1920Hz screen saves 18% power than the ordinary 384Hz, especially when playing high-speed screens.

There is a strange phenomenon in the industry now - some manufacturers dare to call it "energy-saving and environmentally friendly" if they paint ordinary screens with green paint. If you ask me, you have to identify three points when buying an energy-saving screen:​ ​Have laboratory test reports, dare to sign energy consumption bet agreements, and provide a warranty of more than five years​​. After all, the electricity bill saved is real money. Those merchants who rely on low prices will be gone when you need to repair it. Next time, I see the "energy-saving screen" with an outrageously low price. I might as well ask more questions: Does your home save the electricity bill or the manufacturer?

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