Have you ever thought about how much electricity bills will be consumed every day for those advertising screens in shopping malls that are bigger than basketball courts? The power consumption of a mobile phone screen is only a few watts, so why does the large LED screen always have tens of kilowatts? Today we will break it apart and talk about it-​​The LED display power consumption guide that novices can understand even​。

1. Power is not a fixed number

Don't be fooled by a certain power parameter on the product page! This thing is the same as the battery level of a mobile phone.​Use more and consumes power faster​. For example, the fence screen made by our company for Tokyo Stadium has soared when broadcasting competition highlights, and when playing sponsor logos, it directly "lying down" to save power.

Here we need to distinguish two concepts:

• ​Peak power​: The maximum power consumption when the screen is completely white (for example, the outdoor advertising screen can reach up to 750 watts per square meter)
• ​Average power​: The actual power consumption during daily playback (usually only about 40% of the peak value)

For example: a 100㎡ outdoor advertising screen with a theoretical maximum power of 87.5 kilowatts, and can be done with 35 kilowatts in daily use - equivalent to turning on 70 household air conditioners at the same time.

2. Five factors determine the speed of the meter

1. ​Screen size​：
   Just like the bigger the TV at home, the more power it consumes, every 1 square meters of LED screen adds, the power will be increased by 750-1000 watts. But our low brightness and high gray technology can save power consumption of 30㎡ large screens than other people's 25㎡.

2. ​​Brightness settings​：
   The indoor screen is adjusted to 800cd/m² and 1200cd/m², which makes the power difference to the power consumption of a rice cooker. Now all high-end screens come with​Ambient light sensing​, it will automatically fill up blood on sunny days, and save energy smartly on rainy days.

3. ​​Show content​​：
   Playing 4K promotional videos consumes 3 times more power than sending text notifications! There is a cold knowledge: the display of white is the most power-consuming, and the LED light in the black area does not work at all.

4. ​​Heat Dissipation Configuration​：
   Although the screen with liquid cooling system is a bit expensive, it saves 15% electricity than ordinary air cooling. The outdoor screens we make for Southeast Asia rely on this technology, and the electricity bill saved in three years is enough to replace new equipment.

5. ​​Ambient temperature​​：
   10% more electricity is consumed at 40℃ high temperatures than at room temperatures of 25℃. So you can see that the outdoor advertising screens in Dubai have to be equipped with air-conditioned rooms, and the electricity bill is the same as that of the Middle East’s rich.

3. Teach you step by step to calculate electricity bills

Don't be scared by professional formulas, remember this​Following algorithm​：

1. ​Counting the lamp beads​: About 10,000 lamp beads per square meter (outdoor P10 screen as an example)
2. ​​View voltage​: Single lamp 5V×0.02A=0.1 watt
3. ​​Multiple the quantity​: 10,000 × 3 colors × 0.1 watt = 3000 watts (don't panic, actually has scanning technology to save power)
4. ​Discount​: 750 watts are left after 1/4 of the scan, and 10% of the line loss is ≈825 watts/㎡

Take our automated production line with a monthly output of 10,000 square meters for example. The actual power consumption of transparent window screens made for South Korea is only 60% of the theoretical value. The secret is to optimize the driver circuit.

4. Look at the power saving tips here

• ​​Golden Brightness Rules​: The indoor should not exceed 1200cd/m², and the outdoor control should be 5000cd/m²
• ​​Three tips for content optimization​: Use dark backgrounds more frequently, reduce all-white pictures, and play dynamic content in segments
• ​​Three tricks for intelligent control​：
  • Automatic dimming in time periods (full power at 8 am, power saving mode at 10 pm)
  • Motion sensor linkage (the screen is automatically turned off when no one looks at it)
  • Remote monitoring of energy consumption (receive abnormal electricity use and alarm in time)

5. Three pitfalls that novices often step on

1. ​​Think more switching power supplies, the better​
   Some manufacturers cut corners and only installed 15 of them with 20 power supplies. As a result, each power supply is more power-consuming when running overloaded.

2. ​​Cables can be pulled casually​
   If the 8K floor tiled screen installed for Japanese shopping malls is used to smoke in minutes if the cable is used for the wrong cable diameter. Remember: Use 6 square copper wire within 50 meters, and 150 meters must be 10 square meters.

3. ​​Ignore environmental factors​
   When making screens for tropical areas, heat dissipation systems must be installed, otherwise 8% more electricity will be consumed for every 10℃ increase. The curved screen we made for Singapore suffered this loss, and later it was installed to stabilize the electricity bill.

The editor says something real

Understand that LED screen power is not an electrician, but forSpend the right money to do good things​. Don’t just compare the unit price when bidding next time. Calculate the difference in electricity bills for five years and you can buy another half set of equipment. When we make plans for customers, we always package the initial investment + five-year electricity bill, which gives us an 87% repurchase rate. Remember—​​The saved electricity bills are all pure profits​！

for more product information and pricing, please contact us .