• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer

Grow Light Info

Helping You Choose the Right Grow Light

  • Reviews
    • LED Grow Lights
      • BestVA DC Series Review
      • HLG Review
      • KingLED Review
      • Mars Hydro Review
      • Phlizon COB Series Review
      • Spider Farmer Review
      • Viparspectra Review
    • Fluorescent Lights
      • Hydrofarm AgroBrite T5 Review
    • Grow Tents
      • Quictent Review
      • Secret Jardin Review
      • Vivosun Review
    • Seed Banks
      • Crop King Seeds Review
      • Dutch Seed Shop Review
      • ILGM Seed Bank Review
      • Marijuana Seeds NL Review
      • Pacific Seed Bank Review
      • Seedsman Review
  • Buying Guides
    • HID Guides
      • Best CHM Grow Lights
      • Best HID Grow Light Kits
      • Best HPS Brands
      • Best MH and HPS Bulbs
    • LED Guides
      • Best LED Grow Lights
      • Best COB LED Grow Lights
      • Best Full Spectrum LEDs
      • Best 2000w LED Lights
      • Best Dimmable LEDs
      • Best T5 LED Lights
      • Best LEDs For Flowering
      • Best 300w LED Lights
      • Best LEDs Under $100
      • Best LED Grow Light Strips
    • Other Guides
      • Best Large Grow Tents
      • Best Small Grow Tents
      • Best Fan For Grow Tents
      • Best Grow Light Stands
      • Best T5 Bulbs For Veg
      • Best Trichome Microscope
      • Best Digital Weed Scale
      • Best Weed Trimming Scissors
      • Best Grow Light Timer
      • Highest Yielding Autoflowers
  • Grow Light Advice
  • Cannabis Cultivation
    • Best Place To Buy Marijuana Seeds
    • Best Way To Grow Weed Indoors
    • What Do I Need To Grow Weed?
    • Growing Tips & Advice
You are here: Home / Grow Light Advice

Pros And Cons Of LED Grow Lights

Last updated December 8, 2022 By Steven 7 Comments

Pros and Cons of LED Grow LightsLED grow lights are on top of the world.

When it comes to farming indoors, LED lighting technology has been soaring in popularity.

If it hasn’t overtaken traditional lighting systems yet, it will do so very soon.

LED lights are the technology of the future and they have a number of huge advantages over other types of horticultural lighting.

That said, they also have several disadvantages.

But those disadvantages are rapidly disappearing, as manufacturers are making their lights more efficient and cheaper.

Before long, there will be nothing that HID lighting (or other forms of lighting) can do better.

Let’s take a look at the main pros and cons of LED grow lights.

Contents

  • 1 Advantages Of LED Grow Lights
    • 1.1 Quick Harvest Cycle
    • 1.2 Increased Lifespan
    • 1.3 Energy Savings
    • 1.4 Healthier Plants
    • 1.5 Target Wavelength
    • 1.6 Full Spectrum
    • 1.7 Cool Operating Temperature
    • 1.8 Environment Friendly
  • 2 Disadvantages Of LED Grow Lights
    • 2.1 Produce Directional Light
    • 2.2 High Purchasing Cost
    • 2.3 Light Pollution
    • 2.4 Affected by Heat
    • 2.5 Aging Effect
  • 3 LED Lights Pros And Cons: Final Thoughts

 

Advantages Of LED Grow Lights

These are the biggest pros of using light-emitting diode technology to light your plants.

 

Quick Harvest Cycle

LED grow lights can be used for 24 hours a day with little effect on temperature. When growing plants indoors, lack of environmental feedback means the plants rely on you to tell them what season it is and with it, how they should behave.

The use of LED lights enables you to change the daylight hours and the amount of red wavelength light at the exact right time to maximize the plant growth rate.

When LED light is used to grow auto flowering plants, multiple harvests are possible in one season. You is able to alter flowering times in plants and increase production.

 

Increased Lifespan

LED grow lights have a lifespan of over 50,000 hours, which is much longer than traditional lighting systems. A large reason for this is the low operating temperature of the lights.

Conventional lighting systems produce a lot of heat, which reduces their lifespans significantly. The longer lifespan of LEDs means you can grow crops for many years without needing to replace the lighting systems, which reduces costs.

 

Energy Savings

LED grow lights are more efficient than traditional lighting systems, consuming 60% less energy to give the same level of light.

They emit less heat and provide more usable light than traditional lighting systems. This is because an LED diode does not burn anything to produce light. Due to their reduced energy use and heat production, LED grow lights lower energy bills considerably.

 

Healthier Plants

Light sources that emit more UV rays, IR rays and heat are counterproductive to plant growth. This is because they can cause plants to burn and dry up quickly, which leads them to need more water and energy to stay alive.

With LED grow lights, heat and harmful wavelengths of light are limited. As a result, the water and energy is used to grow and develop healthier plants and not to merely survive.

 

Target Wavelength

LED grow lights enable us to regulate the wavelengths of light, which means we can give plants the exact light they need for photosynthesis (the action spectrum).

Traditional lighting systems emit a lot of light in the green and yellow wavelengths, which plants don’t use as much. They need green and yellow light, but not that much of it.

It is wasted energy.

With LEDs, you can give the plants the exact spectrum of light they need. No light goes to waste and you get the most our of your energy dollar.

 

Full Spectrum

The best LED plant lights produce a balanced full spectrum of light. As mentioned above, they give you all the light your plants need and nothing more. Don’t go for the “blurple” lights. The idea that plants need only red and blue light is outdated.

Plus, most fixtures allow you to turn off specific wavelengths, so you can produce the perfect light for every stage of plant growth. This means that LED lights are actually better for your plants than natural light.

 

Cool Operating Temperature

LED grow lights do not give off a lot of heat. This is unlike HID lighting systems that produce temperatures approaching 400 or more degrees.

LED light does not much affect the operating temperature in a greenhouse or grow room. LED plant lights eliminate the need to install cooling systems in your grow area.

 

Environment Friendly

LED grow lights are 100% recyclable. Unlike HID lights, they do not contain toxic substances like mercury. To ensure this, all quality LEDs are certified by RoHS.

 

Disadvantages Of LED Grow Lights

Despite their many advantages and growing popularity, horticultural LED lights do have some drawbacks.

 

Produce Directional Light

LED fixtures provide light that is directional like a flashlight. The area they cover is generally smaller than that covered by traditional lighting systems. Newer lights have addressed this issue.

 

High Purchasing Cost

LED grow lights are much more expensive than HID or fluorescent lights. At least good ones are.

You can find some that are actually cheaper than HID lights, but those are not very good.

That said, these days there are a couple of quality LED companies that sell their lights at a very low cost. You can even get fixtures for less than $100.

 

Light Pollution

LED grow lights produce a bright blue light (in addition to other colors) which can cause blindness in humans.

 

Affected by Heat

LED grow lights are sensitive to high temperatures. The diodes may fail much more quickly under high temperatures and the quality of light they produce suffers as a result.

This is why a good heat sink and fan system is an essential component of most LED grow fixtures. That said, the newer quantum board style lights, like those from Horticulture Lighting Group, do not use fans at all. The rely solely on passive cooling via a large heat sink. COB lights, like those from Rapid LED do the same.

 

Aging Effect

LED diodes may also begin to change color as they get older. Despite having a long lifespan, as they age, they may fail to consistently produce the expected quality of light.

This is much more a problem with cheaper LED chips. If you get quality lights from a reputable company, you won’t have to worry about this issue.

 

LED Lights Pros And Cons: Final Thoughts

LED grow lights are almost certainly the future of the horticultural industry. Even today, the pros far outweigh the cons, with the higher cost being the only serious drawback. And that drawback is vanishing fast as prices drop. The best LED plant lights work so well, they easily outdo any other type of horticultural lighting on the market today.

Share this:

  • Click to share on Facebook (Opens in new window)
  • Click to share on Pinterest (Opens in new window)
  • Click to share on Twitter (Opens in new window)
  • Click to share on Reddit (Opens in new window)

Reader Interactions

Comments

  1. Arya Smith says

    May 17, 2019 at 19:07

    It got me when you said that LED lights are not damaging the environment since it does not contain toxic substances. With that in mind, I will be choosing this for my garden’s lighting to assure that my plants will not have any issues. It’s the first time that I will be having a garden that is why I need to consider all the things I will put there to ensure that the flowers and plants will grow nicely.

    Reply
    • Steven says

      May 18, 2019 at 01:09

      It’s also that you don’t have to dispose of it every year and get a new one, like you do with other light bulbs. That alone helps the environment a lot, and then you add in the mercury, etc. contained in HID bulbs….

      Reply
  2. john says

    June 19, 2019 at 03:47

    Led lights are not full spectrum, Just as Florescent light are also not full spectrum.

    Reply
    • Steven says

      June 19, 2019 at 11:46

      What is full-spectrum light then, in your estimation?

      Reply
      • Matt says

        January 7, 2020 at 12:53

        There is no artificial light source that’s full spectrum. Closest to the sunlight is: CDL (ceramic discharge lighting)

        Reply
  3. Daryl Dunlap says

    March 10, 2021 at 10:14

    When I first got the spectrum lights my plants were growing great. Now my plant don’t grow . Seeds pop out and grow about 3 inches and die. I’m not sure what it is and why they’re not growing

    Reply
  4. Anonymous says

    March 6, 2022 at 18:43

    I got a grow light and my God is it bright. I then read it blinds humans and I was like 😅

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Cannabis Cultivation

Where To Put Carbon Filter In Grow Room

Where To Put Carbon Filter In Grow Room (Best Option & 2 Alternatives)

Potassium Deficiency In Weed Plants

Potassium Deficiency In Weed Plants (Everything You Need To Know)

How Often Should Air Be Exchanged In A Grow Room

How Often Should Air Be Exchanged In A Grow Room?

How To Dry And Cure Autoflowers

How To Dry And Cure Autoflowers (For The Best Bud Quality Possible)

When To Transplant Cannabis Seedling

When To Transplant Cannabis Seedling (And How To Do It Right)

More Posts from this Category

Recent Articles

Why Does Blue Light Help Plants Grow

Why Does Blue Light Help Plants Grow? (What You Need To Know)

What Kind Of LED Lights Grow Plants

What Kind Of LED Lights Grow Plants?

what is cmh light

What Is CMH Light? (+Why It Is Our 2nd Favorite Type)

How To Hang Grow Lights In Tent

How To Hang Grow Lights In Tent (Easy Step-By-Step Guide)

Growing Peppers Indoors With Grow Lights

Growing Peppers Indoors With Grow Lights (Step-By-Step Guide)

Do Grow Lights Produce Heat

Do Grow Lights Produce Heat? (And Which Produce The Most?)

Best Time To Run Grow Lights

Best Time To Run Grow Lights (And Why There Is So Much Debate)

Are LED Grow Lights Bad For Your Eyes

Are LED Grow Lights Bad For Your Eyes? (Important Info!)

Are Grow Lights Bad For Your Skin

Are Grow Lights Bad For Your Skin? (Which Types Are Most Dangerous?)

How To Make Buds Bigger During Flowering

How To Make Buds Bigger During Flowering (3 Steps To Grow Larger Buds)

Footer

Important Pages

  • Home
  • About
  • Contact
  • Privacy Policy

Follow Us

  • Facebook
  • Pinterest
  • Twitter

Search

Image Reuse

Images on this site are free to share (unless attributed to a 3rd party), as long as you give credit to Grow Light Info and provide a link back to the page from which the image came.

Disclaimer

Some recommended products may use affiliate links. GrowLightInfo.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate I earn from qualifying purchases.

*Amazon and the Amazon logo are trademarks of Amazon.com, Inc, or its affiliates.

Copyright © 2023 · Grow Light Info · All rights reserved.