3.5mmx2.8mm SMD, horticulture LED,440nm

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440nm and 660nm Horticulture LED
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  • 440nm Blue SMD LEDs, grow lights for plants: Pioneering Growth in HorticultureIntroduction: In the evolving world of agricultural technology, horticulture LED lighting, particularly the 440nm blue color, 3.5mmx2.8mm SMD type, has emerged as a game-changer. These grow lights for plants are not just a component of modern farming; they symbolize a significant leap in how we approach plant cultivation. Designed for precision and efficiency, these LEDs are at the forefront of horticultural innovation, catering to the needs of professionals in the USA and UK, from engineers to administrators in the agricultural sector.
    grow light 440nm betlux led
    grow light
    Understanding 440nm Blue Horticulture LEDs: The 440nm blue color in horticulture LEDs plays a critical role in the photosynthesis process, promoting healthier plant growth and development. These LEDs emit light at a wavelength that's not only efficient for photosynthesis but also conducive to regulating plant life cycles. Particularly for indoor and controlled environment agriculture, the 3.5mmx2.8mm SMD LEDs offer an unparalleled advantage, combining compact design with powerful light output. Features of Horticulture LED, 440nm Blue Color, 3.5mmx2.8mm SMD:
    1. Optimized Wavelength: The 440nm blue light is ideal for vegetative growth, promoting stronger and healthier plants.
    2. Energy Efficiency: These LEDs are known for their low energy consumption, making them a sustainable choice for large-scale and hobbyist growers alike.
    3. Compact Design: The small size of the SMD LEDs allows for versatile applications, fitting in various spaces and setups.
    Applications in Horticulture: The application of these horti LEDs is diverse. In commercial greenhouses, they augment natural sunlight, contributing to increased yields. For indoor gardens and vertical farms, these LEDs provide a vital light source, enabling year-round growth regardless of external weather conditions.
    grow lights for plants
    grow lights for plants
    Benefits of 440nm Blue Horticulture LEDs: Adopting these LEDs leads to several benefits:
    • Enhanced Plant Growth: Plants receive the optimal light for photosynthesis, leading to improved health and yield.
    • Energy Savings: Lower energy consumption translates to reduced operational costs.
    • Flexibility in Application: Their compact size makes them suitable for various growing environments.
    Case Studies:
    1. Urban Farming in New York: An urban farm in New York reported a 25% increase in crop yield after switching to these LEDs, highlighting their effectiveness in indoor farming.
      urban farming in New York using plant growing lights
    2. Greenhouse Success in the UK: A UK-based greenhouse specializing in herbs saw a significant improvement in plant quality and a reduction in energy costs, demonstrating the dual benefits of these LEDs.
      Greenhouse Success in the UK
      Greenhouse Success in the UK
    User Testimonials:
    • From an Electronics Engineer: "Integrating the 440nm blue SMD LEDs into our systems has revolutionized our approach to plant lighting. The efficiency and light quality are unmatched."
    • Greenhouse Manager Feedback: "Since using these horti LEDs, we've seen healthier plants and lower electricity bills. They are a crucial part of our greenhouse operation now."
    Conclusion: For professionals in plant growing market, embracing the 440nm blue, 3.5mmx2.8mm SMD horticulture LEDs represents a step towards a more efficient, sustainable future in agriculture. Whether you are an engineer, purchaser, or administrator in the field, these LEDs offer a solution that aligns with both your economic and environmental goals. To learn more about how these innovative grow lights for plants can benefit your operations, contact us for more information.  
    • Electrical-optical characteristics: (Ta=25°C) (Test Condition: IF=60mA)
    Part Number Chip Lens Type Forward Voltage(VF) Unit:V Flux Unit:lm   Viewing Angle 2θ1/2 (deg)
    Emitted Color current
    Typ Max Min. Typ.
    BL-LS3528C1S3UBC-440 Ultra blue 440nm 60mA Water Clear 3.1 4.0 1.2 1.8 110
    • Absolute maximum ratings (Ta=25°C)
    Parameter Rating Unit
    Forward Current  IF 90 mA
    LED Junction Temperature 60 °C
    Peak Forward Current IPF (Duty 1/10 @1KHZ) 300 mA
    Operation Temperature TOPR -40 to +100 °C
    Storage Temperature TSTG -40 to +100 °C
    Lead Soldering Temperature TSOL   Max.260±5°C for 3 sec Max. (1.6mm from the base of the epoxy bulb) °C
Dimension and Circuit Drawing:
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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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