LED Display Power Consumption – The Complete Guide

When finding the right LED display, one important factor to consider is its power consumption. The power efficiency of a LED display will play an important role in finalizing your decision and electricity cost. In this article, you will find out how much power a LED display consumes, how to calculate power consumption, input power, and more. Keep reading!

LED Display Power Consumption

Why You Have to Consider the Power Consumption of a LED Display?

The energy efficiency of a LED display has a relevant effect on the total cost of ownership. You can keep a minimum electricity expense if you restrict the LED display consumption level. The sustainability of the product also relates to its power consumption. LED displays that are ideal for the environment and reduces eco-footprints are energy efficient. Therefore, you should consider power consumption before deciding what type of LED display you should purchase.

Indicators of Power Consumption for Calculation

Measurable power consumptions are the following:

  1. Maximum Power Consumption

LED displays can light the diodes or individual pixels in a wide range of color intensities to recreate a visual content that is sent from the source. As an example, all diodes are powered to its maximum to project a full white screen. On the other hand, all diodes are switched off to project a black screen. The maximum power consumption is the situation wherein the LED display is used to its full power. It is also defined when the LED display is set to its full brightness to display a full white content in a specific period of time.

  1. Black Level Power Consumption

The receivers or drivers of the LED displays are still consuming energy even if the diodes are switched off. Therefore, the black level power consumption is the necessary power in running the LED display without showing the content.

  1. Standby Power Consumption

Even in standby and power-saving mode, the electronics of the LED displays are still working. Therefore, below the black level power consumption is the standby power consumption.

The traditional calculation of LED display power consumption rule of thumb doesn’t have to do with the black level and average use of power consumption. It is simply dividing the maximum power by three.

On Barco’s calculation, the power consumption of a LED display depends on the black level, average usage, and maximum power consumption.

Indicators of Power Consumption for Calculation


Different Factors that Affects a LED Display’s Power Consumption

First, you should determine the LED display’s input voltage. You should also find out the utilized current of the LED display. According to different studies, the ideal input power of a LED display is 20mA and 5V for voltage. However, there are also claims that LED display power should not go up to 20mA and the expected power consumption is 0.1W. Besides, there are some important factors to consider when calculating the LED display’s electricity consumption:

  1. Time Schedule. There are software applications that can be used to control the power consumption of a LED display. You can also set its brightness according to the length of time needed. Therefore, you can assure resulting of a better image displayed.
  2. Power Requirements of the Application. The features, functions, sizes, and shapes of each LED display are different with each other. White LEDs with single-chip can handle power from milliwatts to watts. On the other hand, modern LED displays can handle 1 watt up to hundreds.
  3. Light Sensor. Light sensors are also called photosensitive devices. It measures the environment’s brightness level so the LED display can also adjust its brightness respectively. Light sensors also allow the operators to set the LED display’s brightness behavior curve and threshold. Thus, providing the audience with superior viewing experience.
  4. Operation Mode. Regulating the LED display directed current uses single-module solution or constant current driver. Therefore, the LED drivers can offer a sufficient, regulated, and consistent power supply.
  5. Attenuation Characteristics. The brightness level of the LED display will decrease over a period of time. Therefore, red, blue, and green brightness attenuation and color formation inconsistency will occur. Example, 20mA power with 1000 hours of working should have below 10% blue and green attenuation and 2% red attenuation. Meaning, the blue and green LEDs does not use all the 20mA, thus, we can conclude that attenuation characteristic of a LED display has a great impact on its electricity consumption.

Different Factors that Affects a LED Display’s Power Consumption


Costs of Electricity

The expenses related to power consumption varies according to different factors including resolution, brightness level, and electricity rate. To help you decide the right LED display option, we have created a table showing the energy consumption estimation of indoor and outdoor LED display.

Types of LED Display Maximum Level of Brightness Average Energy Consumption Annual Average Cost of Energy
High-Resolution Full Color P4 Indoor LED Display 1800nits 290W/m $500/m
P6 Indoor Full Color LED Display 1800nits 290W/m $500/m
High-Resolution Full Color P6 Outdoor LED Display 7000nits 375W/m $650/m
Full Color P8 Outdoor LED Display 7000nits 400W/m $700/m
Full Color P10 Outdoor LED Display 7000nits 450W/m $790/m
Energy-Saving Full Color Outdoor LED Display 7000nits 200W/m $350/m


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