Growing Cannabis With LED Lights

With legalization of cannabis for both medical and recreational purposes on the rise, demand for high-rate buds is soaring.

Growing Cannabis With LED Lights
Nenad Nikolic

Author: Nenad Nikolic

Publish Date: July 11, 2023
Last Update Date: September 13, 2023

Guide to Growing Cannabis with LED Grow Lights

Guide to Growing Cannabis with LED Grow Lights

Whether you’re a seasoned cultivator or simply looking to switch to LED, this guide is must-read for anyone seeking essential info on growing cannabis with LED lights.

When it comes to growing, choosing the right type of lamp is essential.

Commercial lamps are designed for large-scale production, while full range offer balanced mix of red, blue, and white light for promoting healthy development.

LED- lights with varying power levels can also be used to provide your flowers with the ideal amount they need.

When choosing LED-lights for your grow room, there are several factors to consider, including size of your area, number of hemp you’ll be cultivating, and your budget.

They are cost-effective option for cultivating, as they’re highly efficient and long-lasting, reducing need for frequent bulb replacements and saving you money on energy bills.

It’s important to ensure that you have enough space and proper electrical requirements to support your lights.

Also consider distance between your LEDs and flowers, as this can have an impact on their growth and health. It’s crucial to understand the light cycle.

Different phases of growth require different conditions, and it’s important to adjust range accordingly.

Benefits of Growing Cannabis With LED Lights

Benefits of Growing Cannabis With LED Lights

With their low energy consumption, reduced heat production, and extended lifespan, they are a smart solution for anyone looking to reduce their expenses and minimize the risk of fire hazards.

In addition, they offer wider range of spectral output, enabling you to tailor range to meet the unique needs of your hemp.

By providing full-range, they promote healthy development throughout all phases, from seed to harvest.

They are also versatile and can be utilized in a variety of settings, ranging from small areas to large-scale commercial operations.

Furthermore, they emit lower levels of infrared and ultraviolet radiation compared to other lamp options, making them safer for both flowers and humans.

This allows you to place them closer to flowers without causing any damage or stress.

Lastly, this is environmentally friendly option as they produce less heat and do not contain harmful chemicals which are commonly found in other main types of bulbs.

This is a sustainable solution for growers who are mindful of their environmental impact.

Type of LED

Type of LED

With an ever-expanding variety now available, it’s important to understand the differences between each type in order to choose the most suitable option for your in-door cannabis cultivation.

Standard L E D grow cannabis lamps are the most commonly used type, with a wide range of sizes and shapes available.

They offer a straightforward design that’s suitable for all phases of growth, while also boasting energy efficiency and affordability, making them a popular solution among both novice and experienced growers.

These lights, commonly referred to as “purple LEDs,” have revolutionized the way growers cultivate cannabis.

Chip-on-board (COB) LED cannabis grow light, on the other hand, are designed for different power with their focused light beam that increases yield of your crop.

They utilize multiple LED chips on a single board, resulting in higher wattage output and greater power.

COB LED cannabis grow light are ideal for large-scale commercial production as they produce a significant amount of light in a small space.

Spread LED cannabis grow light and spider LED, on the other hand, have a wider lens that covers larger area with uniform light distribution.

They offer energy efficiency and full range suitable for different phases of marijuana growth.

Factors to Consider When Choosing LED Cannabis Grow Lights and Why Are They Good Choice

LEDs, a cutting-edge technology in the world of grow-light, have numerous advantages for cultivators.

They are energy-efficient, producing minimal heat and lasting longer than traditional options.

In addition, they offer full scale that can be customized to specific needs of your flowers at each phase of their growth.

They are available in different wattages and coverage areas, making it easy to find one that fits your specific area and requirements.

How to Install Your LED Panel in Indoor Cannabis Grow Room and Grow Tents

How to Install Your LED Panel in Indoor Cannabis Grow Room and Grow Tents

Producing cannabis in-doors requires proper lamps for successful growth and yield. If you’re a DIY enthusiast, don’t worry – you can build your own setup.

In this guide, we’ll cover the nitty-gritty details of installing panels in grow tents and areas.

Step 1: Choose the Right Option

Before installing, make sure it’s the right size and wattage for your grow space. Consider the number of hemp you’re growing, their phase of growth, and the square footage of your grow space. You can use online calculators to determine the appropriate wattage needed for your space.

Step 2: Hang

Hang at an appropriate height above the flowers. The distance from the flowers will depend on the wattage of the light and the phase of growth. As a general rule, hang the light 24 inches above the flowers during vegetation and 18 inches during flowering stage. Use adjustable hangers to easily adjust height as your flowers grow.

Step 3: Position

Position directly above the flowersfor even light distribution. Avoid placing too close to the flowers, as this can cause heat stress and damage. Ensure that the light is angled downward to cover the entire canopy.

Step 4: Connect

Connect to a timer or controller for precise light scheduling. Set the timer to mimic natural light cycles, with 18-24 hours of light during vegetation and 12 hours of light during flowering stage. Ensure that power supply is connected securely and safely.

Step 5: Monitor the Light

Monitor power and temperature regularly to ensure optimal growth. Adjust height as needed to keep appropriate distance from flowers. Watch for signs of light burn, such as yellowing or wilting leaves, and adjust power or distance accordingly.

Location and Space Requirements

Location and Space Requirements

Before embarking on your journey, it’s vital to carefully consider location and space requirements.

Indoor location is ideal option, as it provides you with complete control over environment.

However, make sure that location is easily accessible and has adequate ventilation to prevent heat buildup.

In terms of space requirements, make sure that your flowers have enough space to grow and that they can cover entire area. Measure dimensions of your grow space and choose an lamp with appropriate coverage to avoid overcrowding.

Avoid locations that are subject to odor or noise concerns, such as shared spaces or close neighbors. Sound of lamps may be disruptive for some people, so choose location that won’t cause problems for you or your neighbors.

Electrical Requirements

Electrical Requirements

When it comes to grow cannabis, it’s critical to ensure that electrical requirements of the lights are met.

A majority of LEDs require standard 120-volt outlet, but some models may demand higher voltage outlet.

It’s crucial to scrutinize specifications of grow lights before purchase, to ensure that your electrical system is capable of handling requirements.

In addition, it’s imperative to consider wattage of LEDs and number of lights you’ll be using in your grow tents. The more lights you have, the more power you’ll need.

Also, consider power consumption of other equipment, such as fans and air conditioning units, to ensure that electrical system can handle overall power load.

How Far Should LED Grow Lights Be From Cannabis Plants ?

How Far Should LED Grow Lights Be From Cannabis Plants

One critical consideration when cultivating is distance between grow lamps and flowers.

This factor is influenced by several variables, including type of LED, its wattage, and phase of growth.

It is imperative to bear in mind that different strains may have slightly different requirements, so it is prudent to consult with your seed supplier or seasoned cultivator for specific recommendations. It is important to monitor and adjust the distance between lamps and flowers throughout the growth cycle.

As flowers grow taller, it is crucial to raise the lights to keep appropriate distance and prevent light burn.

Grow Light Distance Chart

When cultivating, one vital component to consider is distance between lamps and flowers. This measurement determines brightness received by flowers, which has a crucial impact on their growth and development. Optimal distances vary depending on wattage and type of LED grow-light being used.

To assist you in your journey, we’ve compiled this helpful LED Grow -Light Distance Chart:

  • 100W: 12-18 inches
  • 200W: 18-24 inches
  • 300W: 24-30 inches
  • 400W: 30-42 inches
  • 600W: 42-48 inches
  • 1000W: 48-60 inches

Keep in mind that this chart is a general guideline, and that other factors such as strain and growth phase can also impact optimal distance between the grow lights and flowers.

Cannabis Light Cycle with LED Lights

Cannabis Light Cycle with LED Lights

The light cycle is a crucial component of growth and development for these precious flowers, and LED are a popular option among cultivators for their ability to provide the necessary range during each phase.

But it’s important to keep in mind that consistency is key when it comes to keeping a consistent cycle throughout each phase.

Any disruption in cycle can cause stress and result in stunted development or reduced yield.

Understanding the Light Cycle

Successful production hinges on understanding cycle of this remarkable flowers.

By providing right amount of light and darkness at each phase, utilizing appropriate range of light, and keeping optimal distance between LEDs and flowers, you can unlock the potential of your yield, producing premium cannabis flowers.

Understanding cycle is key to unlocking the full potential of LED-based production.

Seedling Stage Cannabis LED Lighting Requirements

In realm of development, this phase is a delicate and critical phase that demands careful attention.

LEDs are a viable option for growers seeking to optimize growth of their flowers, as they emit low heat and can be adjusted to the ideal range.

While mature hemp require higher power and different range, they benefit from lower power and cool blue light range of 400-500 nm.

Positioning them close to your hemp is essential for healthy development, but it’s important not to place it too close, as this can cause damage or harm.

Optimal distance during sprouting phase is 24-36 inches (60-90 cm) from the top of the flower, but it’s crucial to adjust this distance as your flowers mature.

It’s recommended to keep lamps on for 18-24 hours per day during this phase, to promote fast and robust growth.

Vegetative Stage LED Lighting Requirements

During the vegetative stage, it’s important to provide flowers with sufficient amount of light.

LED grow lights offer several benefits during this phase, as they emit high-power light with low heat output.

In terms of range, they require high amount of blue light during vegetation, which helps with stem and leaf growth.

Blue scale should be combined with some red to develop strong root system.

For vegetative stage, it’s important to consider wattage and power.

Generally, a wattage of 600w is recommended for a 4×4 grow tent.

However, depending on size of your space, you may need to adjust wattage accordingly.

Brightness should also be high enough to provide necessary light for healthy plant growth.

To ensure even coverage and distribution of light, it’s recommended to position LED grow lights closer to flowers.

The ideal distance for LED grow lights during this phase is around 18-24 inches from top of the flowers.

Flowering Stage Light Requirements

Blooming is a critical phase in development, determining final yield and potency of harvest.

To ensure optimal results, flowers require higher proportion of red and orange scale as compared to blue and green.

Red scale promotes flower production and trichome density, while orange scale enhances bud size and density.

LEDs are an essential component for flourishing.

When selecting LEDs for blooming, look for those that possess full scale that covers both red and orange wavelengths.

Alternatively, choose adjustable scales that allow you to adjust red and orange light levels as needed during blooming.

In addition, it is imperative to ensure that power is sufficient to penetrate lower buds and distribute light evenly.

The recommended distance between LEDs and canopy is 12-18 inches. This allows flowers to receive sufficient light without causing damage to leaves or buds.

The recommended schedule for blooming phase 12 hours of light and 12 hours of darkness each day.

Light Spectrum Considerations

Light Spectrum Considerations

Scale of light is a critical consideration when it comes to production.

Different scales of light have different effects and can impact development, yield, and overall grade.

Full spectrum lights are becoming increasingly popular because they provide balance of blue and red scale.

Light full scale can help produce hemp with increased potency and terpene content.

They are also energy-efficient and cost-effective compared to using separate lamps for each phase.

In addition to spectrum, brightness is also an important consideration.

They require a certain amount of brightness to promote healthy development. If the light intensity is too low, cannabis plants may become stretched and weak.

If the light intensity is too high, flowers may experience light burn, which can damage leaves and reduce yield.

It is important to adjust the brightness based on size of space and phase.


When it comes to cultivating, the decision of selecting the most suitable type of light can be a game-changer.

High Pressure Sodium (HPS) and Light Emitting Diode (LED) lights are two of the most popular options available.

But it’s critical to understand the pros and cons of each option to determine which one is right for you.

HPS lamps have been longtime favorite among cultivators due to their ability to provide copious amounts of light in yellow and red ranges, crucial for development and blooming.

However, they’re not without their drawbacks. HPS lamp produce substantial heat, which can be problematic in smaller spaces.

They also require more energy and have a shorter lifespan than LEDs.

On the other hand, LEDs are a newer technology that has gained popularity in recent years.

They produce less heat than HPS, which is beneficial for both flowers and cultivators. LEDs require less energy and have longer lifespan than HPS.

Additionally, they are more efficient at producing full range of brightness.

MH vs. LED

Choosing optimal light solution can be a challenge.

While both metal halide (MH) and light-emitting diode (LED) are both popular, each has its own set of advantages and disadvantages.

MH lamp have long been standard in in-door gardening, they boast efficiency in terms of lumens per watt, they generate heat that can be challenging to manage in small spaces.

While MH are known for their bright white light that mimics the sun, they also tend to have a shorter lifespan compared to LEDs meaning they require more frequent replacement.

On the other hand, LEDs have emerged as alternative to MH in recent years. LEDs are more energy-efficient, generating less heat and requiring less power to operate.

They also have longer lifespan than MH, lasting tens of thousands of hours before needing replacement.

In addition to being more efficient, LEDs offer full range that provides broader range of wavelengths that are beneficial for development.

They are also more versatile and can be used in a wider range of setups.

While choosing between these two options can be challenging, it’s important to consider your specific needs and choose the one that best fits your situation.

Best Cannabis Yield Indoors With Quality LED Lights

Best Cannabis Yield Indoors With Quality LED Lights

As a cultivator, maximizing your in-door yield is imperative for success.

Fortunately, deploying LEDs can facilitate achievement of maximum yield.

The wattage of your lamps is crucial consideration, as higher wattage usually translates to greater light output and, in turn, larger yields.

However, it’s essential to consider the size of your space and number of flowers you’re cultivating.

In some instances, lower wattage lamps may be more suitable option.

Another critical aspect is distance between your lamps and flowers.

Distance varies depending on wattage of your lamps, size of your space, and phase.

It’s essential to choose lamp that emit full range, including red and blue wavelengths that are crucial for development.

In addition to utilizing them, there are other ways to maximize your yield.

For example, keeping optimal temperature and humidity levels, providing adequate nutrients, and utilizing premium medium all contribute to bountiful harvest.

Ultimately, key to achieving maximum in-door yield them lies in careful monitoring and adjustments as needed.

By deploying first rate lamps and providing ideal conditions, you can cultivate healthy and robust hemp that produce bountiful yields.

How Close Should LED Be to Indoor Grow Plants

When it comes to cultivating, proper distance between hemp and brightness source is vital.

Correct spacing ensures hemp receive the right amount and brightness without causing any damage or stress.

The distance between LED and cannabis plants depends on several factors, including power, size of space, and phase.

It’s important to note that closer the LEDs are to hemp, more bright light becomes.

However, it’s essential to find balance between brightness and distance to avoid burn or heat stress.

Cultivators should also consider shape and size of their space when determining distance between light source and flowers.

For example, if space has low ceiling, lamps should be placed higher to avoid too much heat and concentration of light in small area.

Additionally, if flowers are overcrowded, it’s best to increase distance between light source and flowers to avoid shading and uneven development.

Tips for Successful Production

Tips for Successful Production

As a commercial cannabis cultivator, it’s crucial to maximize your yield and produce high-rate crops.

Here are some tips to help you achieve success in cultivating hemp:

Select Right Grow Lamps

It’s important to invest in top-notch LED grow lamps that provide the right range and brightness. Look for trusted brands that offer full-range, and choose the appropriate wattage for your space size.

Placement is Key

The placement of your lamps is vital for maximizing yield. Ensure that your lights are placed at the right distance from your flowers, taking into account their wattage, to ensure they receive optimal light without being harmed or bleached. Use a grow light distance chart as a reference for determining ideal distance based on wattage of your lights.

Keep Temperature and Humidity in Check

This grow lamps produce less heat than traditional HPS or MH lights, but they still generate some warmth. It’s important to monitor temperature and humidity in your space to keep them within the optimal range for cannabis growth.

Soil and Nutrients

The soil and nutrients you use can greatly impact the development and yield of your flowers. Invest in high-rate soil and nutrients specifically designed to ensure your flowers receive the necessary nutrients for healthy development.

Monitor Flowers Health

It’s crucial to regularly monitor your flowers for signs of stress, disease, or pests. Early detection and treatment can prevent major damage and loss of yield.

Optimal Light Cycle

Cannabis require specific light cycles during their phases, and LED grow lights make it easy to customize the light cycle to meet their needs. Use a timer to control light cycle and adjust it based on the phases.

Supplemental Light

This may be beneficial during certain phases, such as blooming. Consider using supplemental LED lights to enhance yield and rate of your crops.

By following these tips, you can successfully grow weed and achieve high yields of crops.

Future Developments in LED Grow Light Technology

Future Developments in LED Grow Light Technology

LED technology is revolutionizing, with innovations in full-spectrum LED lights, smart LED grow lights, advanced materials, and customized range and brightness levels rapidly emerging.

Full-range ones strive to mimic natural sun, providing wider range of wavelengths, which leads to optimal development and higher yields.

Smart LED grow lights equipped with sensors and software utilize precise monitoring and automatic adjustments to provide maximum control over process.

Advancements in graphene and carbon nanotubes are being made for use in LED grow lights to improve light efficiency and durability, producing longer-lasting and environmentally friendly products.

Research into the use of different range and brightness levels tailored to specific strains and phases is ongoing, enabling growers to produce desired characteristics in their flowers.


Here are some frequently asked questions and answers.

Are LED lights better for growing?

LED lights are considered a superior option for growing plants due to benefits like reduced energy consumption, lower heat production, and customizable range. Despite higher initial investment, they offer long-term cost savings and increased yields.

Is it true that for growing cannabis with LED lights is less effective than other type of light?

LED lights are actually a popular choice for growing cannabis because of their energy efficiency, reduced heat output, flexibility, and longer lifespan. Previous concerns about their effectiveness have been dispelled due to advancements in LED technology.

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