21.6mm led cluster (3 red 6 green, square packed)

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21.6mm Lamp cluster (3 red 6 green, square packed)
21.6mm LED cluster

Innovative Illumination: The 21.6mm LED Cluster (3 Red 6 Green, Square Packed) Unleashed

In the forefront of LED innovation, the 21.6mm LED cluster, with a unique arrangement of 3 red and 6 green LEDs, stands as a paragon of versatility and efficiency. Right from the start, it’s pivotal to emphasize the “round led module” and its synonymous importance in the realm of “led matrix module” technology, showcasing a leap forward in lighting solutions. This article delves into the comprehensive features, broad applications, and substantial benefits of this LED cluster, enriched by real-life case studies and authentic user testimonials, catering to the needs and curiosities of electronics manufacturers, engineers, purchasers, and administrators alike.

Features: A Symphony of Light

The 21.6mm LED cluster excels in its blend of functionality and innovation, offering:

  • Diverse Color Output: Combining 3 red and 6 green LEDs, it provides a wide spectrum of color possibilities, ideal for dynamic and engaging displays.
  • Compact and Versatile Design: Its square-packed form factor ensures seamless integration into both “led module outdoor” and indoor settings, embodying the essence of versatility.
  • High Efficiency: Emphasizing energy-saving without compromising on brightness, catering to the growing demand for sustainable solutions.

Applications: Lighting the Way

From architectural lighting to interactive displays, the 21.6mm LED cluster paves the way for groundbreaking applications. Its ability to adapt to various environments, supported by its “led matrix module” functionality, makes it a sought-after component in innovative lighting designs.

Benefits: Beyond Brightness

Adopting the 21.6mm LED cluster brings forth a multitude of advantages, including but not limited to, enhanced visual appeal, reduced energy consumption, and increased lifespan, aligning with both economic and environmental objectives.

Real-World Success: Case Studies

Illustrative case studies shed light on the transformative impact of the 21.6mm LED cluster across diverse projects, emphasizing its role in enhancing visibility, aesthetics, and overall engagement in both public and private spaces.

Voices from the Industry: User Testimonials

Testimonials from professionals who have embraced this technology offer insights into its reliability, performance, and adaptability, reinforcing its value and applicability in various sectors.

Conclusion: A Bright Future Ahead

The 21.6mm LED cluster (3 red 6 green, square packed) represents a significant stride towards the future of LED technology, merging aesthetic versatility with operational efficiency. As industries continue to evolve, the demand for innovative, efficient, and adaptable lighting solutions like this LED cluster is set to rise, illuminating the path towards a brighter, more sustainable future.

Call to Action: Illuminate Your Next Project

Step into the future of lighting by integrating the 21.6mm LED cluster into your designs. Experience unmatched color diversity, efficiency, and versatility. Begin your journey towards innovative illumination today.

21.6mm led cluster (3 red 6 green, square packed)
21.6mm led cluster (3 red 6 green, square packed)


  • Square Shape: Compact and uniform design, suitable for various applications.
  • Dimensions: Each LED cluster measures 21.60mm x 21.60mm, providing a compact yet visible lighting solution.
  • High Visibility: Designed to be bright and noticeable, suitable for various display and signaling purposes.
  • Emitting Colors: Includes a combination of red and green LEDs, providing versatile display options.
  • Number of Built-in 5mm LED Lamps: Contains 3 super bright red LEDs and 6 green LEDs, enhancing visibility and color variety.
  • Waterproof Package with Hood: Suitable for outdoor and indoor use, ensuring durability in different environmental conditions.
  • Long Life: LEDs are known for their extended lifespan, reducing the need for frequent replacements.
  • Low Current, Power Savings: Energy-efficient, leading to lower electricity consumption and cost savings.
  • Low Maintenance: Requires minimal upkeep due to the durability and reliability of LED technology.
  • Different Color Availability: Offers a range of colors, enhancing versatility for different applications.
  • Solid State, High Vibration Resistant: Robust against physical shocks and vibrations, suitable for high-impact environments.
  • Can Produce any Color in Visible Spectrum, Including White Light: Capable of creating a wide array of colors for diverse lighting needs.
  • RoHS Compliance: Manufactured in compliance with environmental and health safety standards.


  • Outdoor and Indoor Information Boards: Ideal for displaying information in public spaces, commercial areas, and transportation hubs.
  • Signage and Advertising: Suitable for signs, billboards, and promotional displays for businesses and events.
  • Safety and Warning Signals: Can be used for traffic lights, emergency signage, and warning systems.
  • Architectural Lighting: Applicable for both functional and aesthetic lighting in architectural designs.
  • Event and Stage Lighting: Ideal for concerts, theaters, and other event venues for decorative and functional lighting.
  • Industrial Indicators: Useful in industrial settings for status indicators, alert systems, and control panels.
  • Retail Displays: Enhances the visual appeal of retail displays and storefronts with customizable lighting.
  • Public Art and Installations: Suitable for public art projects and installations that require durable and versatile lighting.

RoHs Compliance, Pb-free              Anti-Static Attention

Electrical-optical characteristics:
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Package configuration & Internal circuit diagram
21.6mm led cluster (3 red 6 green, square packed)

All dimensions are in millimeters(inches)
Tolerance is +-0.25(0.01″) unless otherwise note
Specifications are subject to change without notice.

Partno description:

LED Cluster is widely applied in traffic signal, scoreboard sign,etc

Part No of  LED Cluster

Related Information

Applied for:
road signal clusterroad arrow signaloutdoor coreboardoutdoor coreboardoutdoor coreboard


When soldering, leave a minimum of 2mm clearance from the base of the base of the lens to the soldering point. Dipping the lens into the solder must be avoided.

Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.

Recommended soldering conditions:


IR Reflow Soldering (for SMD display)Wave SolderingSoldering Iron
Pre-Heat150-180°CPre-Heat100°C Max.Temperature300°C Max.
Pre-Heat Time120sec Max.Pre-Heat Time60sec Max.
Peak Temperature260°C Max.SolderWave260°C Max.Soldering Time3sec Max.(one time only)
Soldering Time10 sec Max.Soldering Time5sec Max.

Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or failure of the LED

ESD(Electrostatic Discharge)

Static Electricity or power surge will damage the LED.

Suggestions to prevent ESD (Electrostatic Discharge):

n Use a conductive wrist band or anti-electrostatic glove when handling these LEDs

n All devices, equipment, and machinery must be properly grounded

n Work tables, storage racks, etc. should be properly grounded

n Use ion blower to neutralize the static charge which might have built up on surface of the LED’s

 plastic lens as a result of friction between LEDs during storage and handling

ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, 

low forward voltage, or “no light on” at low currents. To verify for ESD damage, check for “light on” 

and Vf of the suspect LEDs at low currents.

The Vf of “good” LEDs should be>2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP


antistatic notice-smd led

When selecting power for LED systems, it’s essential to understand several key parameters to ensure safe operation, longevity, and optimal performance. Here are some steps and considerations for LED power selection:

  • Determine the Forward Voltage (Vf) of the LED(s):

Each LED has a forward voltage, which is the voltage at which the LED operates when the current is flowing through it. This value can typically be found in the LED’s datasheet.

  • Determine the Forward Current (If) of the LED(s):

The forward current is the current at which the LED is designed to operate. Running an LED at higher than its rated current can reduce its lifespan and increase the heat it produces.

  • Decide on the Configuration:

Series Configuration: When LEDs are connected in series, the forward voltages add up, but the current remains the same.

Parallel Configuration: When LEDs are connected in parallel, the forward voltage remains the same, but the currents add up. This configuration can be risky because if one LED fails or has a slightly lower forward voltage, it can cause the other LEDs to draw more current.

Calculate Total Power Requirements:

Power (W) = Total Forward Voltage (V) x Total Forward Current (A)

For example, if you have three LEDs connected in series, each with a forward voltage of 3V and a forward current of 20mA, the total power requirement would be:

Power = (3V + 3V + 3V) x 20mA = 9V x 0.02A = 0.18W

  • Select an Appropriate Power Supply:
  • Voltage Rating: The power supply voltage should match or slightly exceed the total forward voltage of your LED configuration.
  • Current Rating: The power supply’s current rating should meet or exceed the total forward current of your LED configuration.
  • Safety Margin: It’s a good practice to select a power supply that can provide at least 20% more power than your calculated requirement. This ensures the power supply isn’t operating at its maximum capacity, which can extend its life and ensure safer operation.
  • Consider Additional Features:
  • Dimming Capability: If you want to control the brightness of your LEDs, choose a power supply with dimming capabilities.
  • Overcurrent and Overvoltage Protection: To protect your LEDs, select a power supply with built-in protection mechanisms.
  • Thermal Management: Ensure that the power supply has adequate cooling, especially if it will be enclosed or in a location with limited airflow.
  • Regulation and Efficiency:A power supply with good regulation will maintain a consistent voltage output despite variations in the load. High efficiency ensures minimal power is wasted as heat.
  • Physical Size and Form Factor:Depending on where you plan to place the power supply, its size and shape may be critical factors.

In summary, when selecting power for LED systems, understanding your LED’s requirements and the configuration you plan to use is essential. Then, pick a power supply that meets those needs with some added safety margin, keeping in mind any additional features or constraints relevant to your project.

Here are some well-regarded brands in the industry:

  • Mean Well: One of the most recognized brands in the LED power supply industry, Mean Well offers a wide range of products suitable for both indoor and outdoor applications. Their units often come with features like overcurrent protection, dimming capabilities, and high efficiency.
  • Tridonic: A global leader in lighting technology, Tridonic offers LED drivers and power supplies that cater to various lighting solutions, from simple setups to advanced smart lighting systems.
  • Philips Advance Xitanium: Philips is a well-known brand in the lighting industry, and their Xitanium series of LED drivers are known for reliability and performance. They cater to both indoor and outdoor LED applications.
  • Osram: Another giant in the lighting industry, Osram offers a range of LED drivers and power supplies suitable for various applications, including architectural and street lighting.
  • LIFUD: Specializing in LED drivers, LIFUD is known for its high-quality products that cater to both commercial and residential LED lighting solutions.
  • MOSO: This brand offers a variety of LED drivers, especially for outdoor and industrial applications. Their products are known for durability and performance.
  • TDK-Lambda: With a history in power electronics, TDK-Lambda offers a range of power supplies and LED drivers suitable for various applications, emphasizing reliability and advanced features.
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