LED Grow Lights

Explore our wide selection of grow lights to fit the preferences and requirements of all growers. Whether you're cultivating cannabis indoors, starting seedlings, or pursuing any other type of indoor cultivation, our energy-efficient, full-spectrum LEDs provide optimal lighting for maximum yields and healthy plant growth. Find the perfect LED grow light for your growing space below.

3  products
  • Mars Hydro FC4800 – 480W LED Grow Light
  • Mars Hydro FC1500 – 150 W LED Grow Light
    £166.73
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  • Mars Hydro FC3000 – 300 W LED Grow Light
    £282.15
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Choosing the Right LED Grow Light for Your Needs

LED grow lights have transformed indoor cultivation, offering an energy-efficient and long-lasting alternative to traditional lighting. However, with various options available, selecting the ideal LED grow light can be overwhelming. Check out what you need to know to make the right choice.

Why Choose LED Grow Lights?

LED grow lights offer impressive benefits, including:

  • Superior efficiency: LEDs use much less electricity than HPS and MH options.
  • Low heat output: LEDs reduce the risk of heat stress.
  • Full-spectrum options: Many models mimic natural sunlight.
  • Long lifespan: High-quality LEDs can last up to 50,000 hours, which equates to several years of use.

LED Grow Light Wattage and Coverage

Choosing the right wattage depends on the size of your grow space. A general rule of thumb for cannabis is 300 W/m², at a distance above the canopy of 30–60 cm throughout the growing cycle.

Full Spectrum vs Targeted Spectrum

LED grow lights are available in both full spectrum and targeted spectrum models. Full-spectrum lights emit a wider distribution of wavelengths that are beneficial for general plant growth and serve as a balanced light source for overall plant development.

In contrast, targeted spectrum lights emit specific wavelengths designed to support particular stages of plant growth, such as veg and flowering. They’re ideal for growers looking for more control over their plants and wanting to maximise growth at specific stages of their life cycle.

LED Grow Lights for Your Plants

LEDs are ideal for growing cannabis, but they also work for growing all other types of plants, from common houseplants to herbs and vegetables. Their efficiency, durability, and tailored light spectrums make them an excellent choice for any type of indoor gardening.

Do LED Grow Lights Use a Lot of Electricity?

Compared to older lighting technologies, LED grow lights are far more energy efficient. To estimate electricity costs, use this simple formula:

Wattage in kW x Hours of Use per month x Electricity Rate (per kWh) = Energy Cost

For example, a 200 W LED grow light running 18 hours per day at €0.25/kWh would cost around €27 per month—a fraction of the expense of traditional grow lights.

Frequently Asked Questions About LED Grow Lights

How far should I hang my LED grow light above my plants?
Most LED marijuana grow lights should be placed 30–60 cm above the plant canopy, depending on their intensity.
Do LED grow lights work for all stages of plant growth?
Yes. Full-spectrum LED grow lights support seedlings, vegetative growth, and flowering stages.
Are LED grow lights better than HPS for cannabis?
LED marijuana grow lights offer better energy efficiency, lower heat output, and longer lifespans than HPS lights.
Can LED grow lights be used in small spaces?
LED grow lights come in various sizes, making them perfect for both large-scale operations and compact grow tents.
How do I know if my plants are getting enough light from my LED?
Check for signs of light stress like curling leaves or discoloration, and signs of light deficiency such as yellowing and legginess. Using a PAR meter can also give you an exact measurement of the light intensity in your grow space.
What is the lifespan of an LED grow light?
High-quality indoor LED grow lights can last 50,000 hours or more, which is equivalent to several years of use.