LED Bar Graph Display

Light Bar Array graph

Betlux is widely recognized as a pioneer in the field of light bar displays with exceptional dependability. We offer a variety of bar numbers in various configurations, including rectangular, square, and circular formats.


Variable color; IC compatibility; exceptional color uniformity; low-current operation; design flexibility;

Application: medical and industrial equipment, cash registers, consumer and gaming technologies, home appliances, and customized products

Equalizer Displays , LED indicator
Equalizer Displays , LED indicator

LED bar graph display is a visual indicator composed of multiple LED segments arranged in a linear or rectangular pattern to represent data as a series of bars. These displays are often used to provide a quick and easy-to-read representation of analog or digital data, such as levels, measurements, or performance metrics. Here are some key characteristics and applications of LED bar graph displays:


  • Multiple LEDs: LED bar graph displays consist of several individual LEDs, typically arranged in a linear or rectangular array.
  • Linear or Dot Mode: They can operate in linear mode, where the LEDs light up progressively to represent values, or in dot mode, where specific LEDs are activated to indicate discrete levels.
  • Various Colors: LED bar graph displays are available in various colors, with red, green, and yellow being common options.
  • Customization: Some displays allow users to customize the color and brightness of the LEDs to match their specific requirements or aesthetics.


  • Audio Level Meters: LED bar graph displays are frequently used in audio equipment to indicate sound levels or volume settings.
  • Signal Strength Indicators: In devices like radios, televisions, and wireless communication devices, LED bar graphs display signal strength or reception quality.
  • Battery Charge Level: Many battery-powered devices, such as smartphones and laptops, use LED bar graphs to show the remaining battery charge.
  • Analog and Digital Panel Meters: They are employed in panel meters to visually represent measurements of various parameters, such as temperature, voltage, or current.
  • Equalizer Displays: LED bar graph displays are commonly seen in audio equalizers to illustrate frequency bands and their corresponding amplitudes.
  • Process Control: In industrial settings, LED bar graph displays may represent process parameters or control variables.
  • Level Indicators: These displays are used in tanks and reservoirs to show the current fluid or fuel levels.
  • Instrumentation and Test Equipment: They can be incorporated into test equipment to indicate measurement results, such as signal strength or voltage levels.
  • Music Visualizers: LED bar graph displays are used in music visualizers and lighting effects to create dynamic and interactive displays based on audio input.
Level Indicators
Level Indicators

LED bar graph displays are versatile and offer a clear and intuitive way to represent data visually. They are valued for their ability to quickly convey information and are commonly used in various electronic and industrial applications where visual feedback is important.




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