The LED display power consumption is one of the vital factors that will influence your final costs. Especially in the long term, the electricity cost of LED display screens can decide whether your ROI is satisfied enough. So, how to calculate LED display power consumption? We will discuss the methods for both common LED display and energy-saving LED display to help you to figure this out clearly and quickly.
Concepts of Power Consumption
First of all, let’s clear up different definitions of power consumption. Basically, there are three kinds of power consumption we will usually come up with when calculating the electricity cost of LED display panel, they are maximum power consumption, black level power consumption and standby power consumption. We will calculate the actual LED screen power consumption based on the three values.
In short word – maximum power consumption will be produced when the whole display is displayed full white, and all diodes are powered to their maximum.
The standby power consumption stands for the electricity cost when the screen is set in standby, however, some components are still working. This consumption generally will be lower than black level power consumption.
Black level power consumption refers to when the diodes are off while some components are still working such as receiver cards and drivers. In this situation, the display will not display any content.
After we know the different kinds of power consumption of LED display, how to calculate the actual power consumption?
How to Calculate Actual LED Display Power Consumption?
Typically, there are two types of methods to calculate the exact LED display power consumption.
Type 1: a more simple method but may exist more errors.
Just divide the maximum power consumption by three.
For example, if the maximum figure is 1000W per square meter, then the typical power consumption is 1000W / 3 ≈ 333W.
As you can see, this method is simple enough, but it doesn’t take into account other two factors – black level power consumption and standby power consumption, thus having more risks for errors.
Type 2: taking into account all the three factors. And the fomular can be listed as:
[(Max power－black level power)*70%*33%]+ black level power
The value of 70% comes from the common configuration of brightness that at the level of around 70% of the maximum brightness. And 33% represents the typical content on the LED display wall will consume about 33% of electricity of power consumption when using the above brightness.
This may seem more complicated than the former one, but it is more accurate cause it considers the questions in a more all-around manner. Just believe in yourself, after reading some examples, you can learn how to calculate it well and quickly.
Now, let’s begin with a specific case.
Please suppose you have an outdoor LED display with a maximum power consumption of 100W a month. The black level power consumption is 30W.
|Traditional Rule of Calculation in LED industry||Typical Power Consumption (generally more close to the real value)|
|Only taking into account the maximum electricity consumption: |
Max power consumption = 100W 100W / 3 = 33W
|Max power consumption = 100W |
Black level power consumption = 30W
The power consumption for this LED wall amounts to:
[(100W－70W)*70%*33%]+30W = 46.2W
In the second calculation method, we suppose that the typical content will consume 33% of the configured power. However, the actual consumption may be vary based on the contents you display.
For example, if you display something with full white background, the amount will be higher than 33%. If you display predominantly black content, then the figure will be lower than 33%.
Please be informed that some factors will also influence the final power consumption. For instance, the temperature has negative correlation with power efficiency – that is, the higher the temperature, the lower the power efficiency.
After you get the answer, just use it to time the local industrial electricity rate to get how much you will pay for the power consumption of the LED screen.
Does Energy-saving LED Display really Save Electricity Cost for You?
Nowadays, the energy-saving LED display is a trend in the LED screen industry. This type LED screen is suitable for various applications as both fixed LED display and rental LED display. But customers also rise some questions – dose this type of LED display can really save electricity cost, and how much money it can save for you exactly?
First of all, the answer is yes. Applying energy-saving LED display can save a bunch of money in long term. How can we conclude this? Just see the chart listed below.
We take Linsn EV960 series energy-saving LED display as the example.
|100sqm EV960 series compared with normal cabinet|
|Update P10 7000nits||Normal P10 6000 nits||Money you save|
|Saving power consumption||Average 150W/SQM||Average 300W/SQM|
|2019 US Industrial/Commercial electricity rate: 0.065/KW|
We can see, in the long term, the EV960 energy-saving LED display can save you a good deal of money, thus increasing your ROI on the LED screen project. Moreover, it can perform higher brightness with lower power consumption, displaying the contents clearly even under direct sunlight. It can be one of the best choices for outdoor LED displays.
For more information about Linsn EV960 series compared with other competing energy-saving LED displays to get the latest information, just click:
To Sum up
In this article, we discuss how to calculate LED display power consumption. There are two kinds of calculating methods – one only considers the maximum power consumption, which is simple and straightforward; and another one will take more factors into account thus getting a more accurate value.
Besides, we try to figure out whether energy-saving LED displays in the market can save electricity cost for us, and how much money we can save.
Generally speaking, we are sure that a reliable energy-saving LED display screen can save power consumption, especially in long term.
Just keep your eyes open to find the best appropriate one. Having a perception of how much you will pay for LED screen power consumption can help you make decisions better or adjust your budget.