Selecting the Right LED Lights for Leafy Vegetable Cultivation

Posted on May 31 , 2024

To optimize yield and quality in leafy vegetable cultivation, choosing the appropriate light source is crucial. In collaboration with gardening partners worldwide, VANQ offers tailored lighting solutions to meet the unique requirements of each leafy vegetable cultivation. With LED grow lights, leafy vegetables can enjoy an optimal illumination environment. 

Here are the advantages of LED plant growth lights:

  • Mature light recipes for different crops

  • Energy efficiency

  • Improved growth quality

  • Enhanced taste and nutrition

  • Shorter growth cycles

  • Environment-friendly

    20W leafy vegetable planting light

VQ-GLT8W20, a 20W leafy vegetable planting light, is specifically designed for modern agriculture. Its flexible installation facilitates maintenance and replacement while allowing up to 20 units to be connected in series, ideal for large-scale applications. With an IP65 waterproof rating, it adapts to various environments, and its plastic surface prevents electric shock. Customized lengths cater to different planting needs, while its aluminum alloy material ensures efficient heat dissipation and extended service life.


  • PPF: 54 μmol/s

  • Efficacy: 2.7 μmol/J

  • Dimensions: 47in L x 1.25in W x 1.25in D

  • IP Rating: IP65

How to Achieve Better Leafy Vegetable Yields and Quality at Home?

Leafy Vegetable

For optimal leafy vegetable growth, choose the appropriate light spectrum and intensity while controlling illumination time (photoperiod) with a controller.

Light Spectrum

Full-spectrum LED grow lights are the top choice for leafy vegetable cultivation, providing a natural light spectrum that fulfills plants' needs at different growth stages, covering all wavelengths from ultraviolet to infrared.

Light Intensity

Light intensity, or Photosynthetic Photon Flux Density (PPFD), is a crucial parameter affecting photosynthesis. Although light intensity requirements vary among leafy vegetables, a PPFD of 200 μmol/(㎡·s) generally satisfies most plants' growth needs. Keep light intensity below the saturation point to avoid potential harm to plants.

Light intensity and photosynthesis rate increase proportionally below the saturation point, resulting in higher yields. 

Below are common PPFD requirements:




850 μmol/(㎡·s)


320 μmol/(㎡·s)


50 μmol/(㎡·s)


150 μmol/(㎡·s)


850 μmol/(㎡·s)


The photoperiod involves alternating light and dark periods. Each plant has unique needs, and here are some common photoperiod requirements for leafy vegetables:


Lettuce is extremely sensitive to photoperiod and requires 16 hours of light and 8 hours of darkness for robust growth. This balance between photosynthesis and nighttime respiration ensures optimal conditions.


Strawberries are also common in leafy vegetable cultivation and have specific requirements. They grow best with a 12-hour light and 12-hour dark photoperiod, promoting effective photosynthesis, timely flowering, and increased sweetness and yield.


Ginseng is a plant that needs extended light exposure, requiring up to 18 hours of light. This duration ensures robust root growth and high yield with medicinal value.


Tomatoes require 14 hours of light and 10 hours of darkness, allowing for sufficient photosynthesis and metabolic processes during the dark period. Experiments show that this photoperiod leads to high yield and improved fruit quality.

Related Articles more >

How to remotely adjust your LED grow light when you are outside
Jun 19 , 2024

How to remotely adjust your LED grow light when you are outside

Light intensity directly influences photosynthesis rates, with moderate levels fostering optimal growth while too little or too much light can hinder plant development. Managing light intensity is key to preventing issues like leaf burn or stunted growth. Explore innovative solutions like the VQ-MG4B3 dimming controller, which allows remote adjustment of plant lamp settings for ideal growth conditions, including spectrum, timing, and environmental monitoring.
Difference between led lights and hps mh and cfl lights
Jun 14 , 2024

Difference between led lights and hps mh and cfl lights

LED lamps over traditional lighting technologies such as HPS (High Pressure Sodium), MH (Metal Halide), and CFL (Fluorescent Lamps). Dive into the historical origins, technical principles, and unique benefits of each type, and understand why LED lamps have emerged as the top choice for modern agricultural lighting.
How Often Should You Water Your Marijuana Plants?
Jun 13 , 2024

How Often Should You Water Your Marijuana Plants?

“How often should I water my cannabis plants?” The answer to this question can greatly impact the health and yield of your cannabis plant, and today we’re going to look at the best practices for watering your cannabis plant.