Growing cannabis requires proper lighting to ensure that the plant grows healthy and produces high-quality buds. The right grow light plays a significant role in this process, as it provides the necessary light spectrum for the plant to photosynthesize and grow. However, choosing the right grow light for cannabis can be overwhelming, especially for beginners. In this article, we will discuss the key points to consider when looking for a grow light for cannabis.
1. Light Spectrum: The light spectrum emitted by the grow light is crucial for the plant's growth. Cannabis requires a spectrum of light that includes blue, red, and white light. A full-spectrum grow light will provide all the necessary light wavelengths for healthy plant growth.
2. Wattage: The wattage of the grow light determines its power output. Cannabis plants require a minimum of 50 watts per square foot of growing space. However, the wattage requirement may vary depending on the stage of growth.
3. Type of Grow Light: There are different types of grow lights, including LED, HID, and fluorescent lights. Each type has its pros and cons, and the choice depends on the grower's preference and budget.
4. Coverage Area: The coverage area of the grow light should match the size of the growing area. A larger coverage area will require a more powerful grow light to ensure that all plants receive adequate light.
5. Price: Grow lights come in different price ranges, and the choice depends on the grower's budget. However, it is essential to invest in a high-quality grow light that will provide optimal light for healthy plant growth.
In conclusion, choosing the right grow light for cannabis is crucial for a successful harvest. Considering the light spectrum, wattage, type of grow light, coverage area, and price will help you make an informed decision when selecting a grow light for your cannabis plants.
10 Best Grow Light For Cannabis
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1. 4000w Led Grow Light For Indoor Plants With Full Spectrum And Dual Switch – Ideal For Hydroponic Seedling Veg And Bloom Greenhouse Growing.
The SZHLUX 4000W LED Grow Light is a high-performance grow lamp designed for indoor plants. It features a dual-switch, full-spectrum design that can cover an area of 4x4ft, making it perfect for hydroponic seedling veg and bloom greenhouse growing light fixtures.
The LED grow light uses the latest in high-yielding LED technology with a high energy efficiency of 2.9 Umol/J, which delivers powerful light output and uniform canopy penetration that results in maximum higher yields. It consumes only 400W with 864 LEDS, which saves up to 50% energy compared to other quantum board LED grow lights.
The trapezoid and double-switch design of the SZHLUX LED grow light is what sets it apart from other grow lights. The trapezoid-shape and SanAn 1W LEDS provide a larger luminous area than T5 and T8 led plant lights. The double switches let you control 3 or 6 lights separately to adjust the brightness of the light, which is more convenient to operate than the ordinary dimmable remote control. This prevents inefficient plant growth caused by improper adjustment.
The sunlight full spectrum design of the SZHLUX LED grow light is infinite close to sunlight wave for plants, with over 95% light energy being absorbed by plants. The white, blue, red, and IR (3000K, 5000K, 660nm, and IR 730nm) spectrum provides 3000K providing more reddish light and the 5000K providing more blueish. The 5000k blue light promotes seedling growth, the 660nm red and 730nm IR light are most useful for plant photosynthesis, promote plant flowering and fruiting, increase yield, and crop quality.
The SZHLUX LED grow light also features a noise-free and amazing heat dissipation design. The professional fanless design makes your growing life easy and quiet, and the quickly heat dispersing aluminum shell and reflector reducing light lost to aisles and walls increase the light intensity up to 20%. This allows your plants to receive more energy without burning for maximum lighting headroom.
Finally, the SZHLUX LED grow light comes with a 2-year warranty plus 30 days Money Back Guarantee for any products from our official channel, and if you need to change the light beads or part of the light, please feel free to contact us based on our reliable customer service.
2. Vivosun Vs1000 Led Grow Light – Full Spectrum For Indoor Plants In 2×2/3×3 Grow Tents
The VIVOSUN VS1000 LED Grow Light is a high-efficiency and cost-effective solution for indoor plant growth. It features the latest LED plant light technology with Samsung LM301 diodes, providing uniform lighting and stronger light output. The energy consumption is only 100 watts, making it more efficient than traditional HID lights and other plant lamps on the
3. 2000w Full Spectrum Led Grow Light With Samsung Lm301b, Uv Leds, Veg/bloom Switch, And Daisy Chain For Indoor Plants And Hydroponic Growing – 5x5ft Coverage.
The KOSCHEAL 2000W LED Grow Light is a high-efficiency plant growth light that uses the newest LM301B diodes and SMD LED technology to provide the highest PAR/LUMEN output. With a 2.8umol/J energy efficiency rating, this light speeds up photosynthesis and is designed to replace a single-ended 400watt HPS/CMH grow light.
This commercial-grade LED grow light is also daisy chain compatible, making it easy to connect with other grow lights to extend the coverage. Up to three growing lamps can be connected and used together by power cords, saving energy, money and time. The power supply works on 90VAC to 277VAC, making it suitable for large rooms and commercial setups. It is perfect for 4’x4’ vegetative coverage and 3.5’x3.5’ flowering coverage.
The KOSCHEAL LED Grow Light provides a full spectrum of light for plants, including 460nm, 620nm, 730nm(IR) and 396nm(UV). The spectrum of light is proportioned according to the light compensation point and saturation point of the plant (MJ), making it the most suitable spectrum for plant growth. The UV diodes also stimulate anthocyanins, which improve the quality of fruits and flowers.
This LED grow light is also safe and durable. It does not have a reflector design because the LED reflector is not heat-resistant. If a short circuit occurs, the reflector is easy to melt and fire. Instead, the KOSCHEAL LED Grow Light has cooling fans that operate at high speed and are super quiet, along with upgraded aluminum cooling heat sinks that improve heat dissipation efficiency and slow down light decay. This saves the cost of frequently changing lights.
KOSCHEAL offers a worry-free purchase with a 30-day money-back guarantee and US local after-service for three years. They promise to reply within 24 hours for any questions or concerns.
4. New 2000w Led Grow Lights – Full Spectrum For Hydroponic Plants, 5×5 Ft Coverage.
The KingLED 2023 Newest 2000w LED Grow Lights are a high-quality and cost-effective lighting solution for indoor hydroponic plants, veg, and bloom greenhouse growing. These lights utilize the newest LM301B LEDs and 10 times Optical Condenser to provide high PAR output and energy efficiency with 2.8 umol/J, improving light penetration and coverage.
The full spectrum LED grow lights have been designed to provide a more matching spectrum for MJ, providing full-spectrum lighting of natural light for plants in different growth stages from seedling to flowering, greatly increasing your harvest. The veg and bloom modes are also designed to provide proper light for plants in different growth stages, making it easier to achieve optimal results.
Compared to traditional grow lights, the 2000W LED light adopts a high-tech SMD LEDs and reflector technology, consuming only 200W while providing brighter light and saving electricity, thus saving you money in the long term. Multiple high-speed mute fans and upgraded aluminum radiators enable the light bulb to work at lower temperatures of 50°F to 60°F, preventing plants from burning, increasing lighting time, and promoting plant growth.
KingLED offers 3 years of professional service and a free return policy for 90 days. The company has more than seven years of sales with an after-sale service team professional in design, sales, and production for the best products and service to customers. If you have any questions, the team is available 24/7 to provide a satisfactory result.
In summary, the KingLED 2023 Newest 2000w LED Grow Lights are a durable, energy-efficient, and effective lighting solution for your indoor hydroponic plants, veg, and bloom greenhouse growing. With their high-quality design and professional service, they are a reliable choice for any grower looking to optimize plant growth and yield.
5. Vivosun 2-Pack Vs1000e Led Grow Light For Indoor Plants With Samsung Diodes And Full Spectrum.
VIVOSUN has introduced the 2-Pack VS1000E LED Grow Light, which promises to revolutionize indoor gardening. The product features 238 Samsung diodes, which guarantee improved efficiency and more uniform light for optimal plant growth. With an output of 2.5 μmol/J and energy consumption of only 100W, the grow light is highly efficient and delivers optimized light.
The driver, an ETL-certified low voltage driver, ensures the safety of the user. The driver is isolated, meaning it is not directly on the LED board, significantly reducing the risk of electric shock. Therefore, the user can rest assured that the product is safe to use.
The grow light has an optimal full-spectrum coverage that includes 3000K, 5000K, 660nm, and 750nm light, which provide white, warm white, red, and far-red light. The sunlike spectrum lighting ensures that plants receive the necessary light for every growth stage. Thus, the product is ideal for indoor plants, seedlings, vegetables, and flowers.
The LED grow light allows more energy to be converted into light rather than heat. The aluminum heat sink enables the light to cool down faster and run quietly. This feature ensures that plants receive more light and less heat, which is vital for their growth.
The product comes with an extra set of hangers for easy hanging, making it easy to install. The IP65 waterproof level can tackle the typical moisture in the tent, making it perfect for a 2 x 2 ft. tent. The well-made details of the product ensure that the user can enjoy using it for a long time while ensuring the safety of the plant and the user.
In conclusion, the VIVOSUN 2-Pack VS1000E LED Grow Light is an excellent product for indoor gardening. The product guarantees improved efficiency, optimal full-spectrum coverage, and more light and less heat. With an extra set of hangers and an IP65 waterproof level, the product is perfect for a 2 x 2 ft. tent. The well-made details of the product make it safe to use and ensure that the user can enjoy using it for a long time.
6. 200w Full Spectrum Grow Light With Tripod Stand And Dual Controllers For Indoor Plants.
The Upgraded Grow Lights for Indoor Plants is a highly efficient and advanced plant light that provides ample light to plants for their healthy growth. It features 4 head 432 LED lights that can provide stronger and uniform intensity of light to plants. Unlike other brands, this grow light has a larger lighting area and is ideal for every plant growth stage.
The built-in 432 efficient LED beads have undergone strict quality inspection and have a service life of up to 60,000 hours. The grow light is equipped with 10-level brightness adjustment and a maximum output power of 200W, making it highly efficient and customizable. It also has three spectral modes – warm, red, or mixed spectrum – to meet the light conditions that plants need most in different stages.
This plant light has an auto circular-memory timing function and comes with 4/8/12H timer setting options, making it extremely convenient for users. The grow light will turn on by itself every day as per the user's settings, even when they are traveling. This feature ensures that plants are taken care of, regardless of the user's availability.
The Upgraded Grow Lights for Indoor Plants is highly versatile and suitable for a variety of indoor plants. It can be used in balconies, greenhouses, dark rooms, offices, and other similar spaces. It is especially useful when plants need extra light during rainy days, snowing, or dark indoor conditions.
The product comes with a 20-month warranty, which reflects the brand's confidence in its product quality. With this grow light, users can be assured of providing their plants with the best possible care and ensure their healthy growth.
7. Spider Farmer Sf1000d Led Grow Light For Indoor Plants, Full Spectrum With Samsung Lm301b Diodes & Ir Lighting, Ideal For 3×3/2×2 Grow Tent With 2.5g/w Yield
The Spider Farmer SF1000D LED Grow Light is a powerful and reliable lighting solution for indoor plant growth. Equipped with Samsung LM301B Diodes and IR lighting, this full spectrum grow light is ideal for all growth stages of indoor plants, including germination, clones or cuttings, mothers, vegetative, and flowering applications.
The SF1000D has been updated with more expensive 301B diodes, which deliver the highest light output LED available at present. This results in powerful light output and uniform canopy penetration, resulting in maximum higher yields when compared with other LED grow lights.
The sunlight spectrum of the SF1000D includes blue, full spectrum 660-665nm, 3000K, 5000K, and IR, which produces beautiful, high-yielding plants. The light is especially useful for indoor growers who do not have adequate natural light in their homes. With a veg footprint of 3 x 3 ft and a flowering footprint of 2 x 2 ft, the SF1000D is perfect for use in grow tents.
The SF1000D operates at a lower running cost than other lighting solutions, thanks to its high energy efficiency and better light penetration. Consuming only 100W, it achieves better or comparable results than 200 watts HID with 50% less heat and power consumption. Additionally, the SF1000D provides 40% higher yields with less energy compared with other brand diodes.
Safety and reliability are key features of the SF1000D. It operates with no fan, resulting in zero noise. The light also has large areas of solid aluminum heat sink, special protective covers for cables, waterproof LED board, and a 50% longer lifespan compared with other brand lights. This allows growers to cultivate with confidence.
Spider Farmer is committed to providing high-quality grow lights at an affordable price. The SF1000D is backed by a 5-year after-service warranty at a local maintenance center in the US, Canada, UK, EU, or AU. For any questions or concerns, customers can email the company for assistance.
Overall, the Spider Farmer SF1000D LED Grow Light is a reliable and efficient lighting solution for indoor plant growth. Its updated diodes and better light penetration result in higher yields, and its safety features and long lifespan make it a worthwhile investment for indoor growers.
Best Grow Light For Cannabis FAQs
How close should grow lights be to cannabis plants for optimal growth?
As a general rule, the distance between grow lights and cannabis plants depends on the type of light and the stage of growth. For high-intensity discharge (HID) lights, such as metal halide (MH) and high-pressure sodium (HPS), the distance should be between 12-24 inches during the vegetative stage and 18-30 inches during the flowering stage. For LED lights, the distance should be between 18-24 inches during the vegetative stage and 12-18 inches during the flowering stage. However, it's important to monitor the plants closely and adjust the distance accordingly to prevent burning or stretching. Factors like the size and power of the light, the temperature, humidity, and airflow also need to be taken into consideration. Ultimately, the goal is to provide enough light for optimal growth without causing any harm to the plants.
How many hours of light do cannabis plants need during the vegetative stage?
During the vegetative stage, cannabis plants require approximately 18-24 hours of light daily. This stage is crucial in the plant's growth as it focuses on developing the roots, stems, and leaves. Providing enough light helps the plants grow faster and stronger, resulting in higher yields in the future. It's essential to maintain a consistent light cycle to avoid any stress or shock that can harm the plant's growth. During this stage, it's recommended to use high-intensity discharge (HID) lights or LED lights as they provide a full spectrum of light that cannabis plants need. Once the vegetative stage is complete, and the plants reach maturity, the light cycle should be reduced to 12 hours of light and 12 hours of darkness to initiate the flowering stage.
How much electricity do grow lights for cannabis consume and what are the most energy-efficient options?
Grow lights for cannabis can consume varying amounts of electricity depending on their wattage and usage. Generally, a 1000-watt grow light can consume around 1 kWh of electricity per hour, while a 600-watt grow light can consume around 0.6 kWh per hour. The total consumption of electricity by grow lights also depends on the length of their usage and the number of lights used in a grow room.
Energy-efficient options for grow lights include LED lights, which consume much less electricity than traditional HID lights. LED grow lights are also cooler and have a longer lifespan, making them a more sustainable option. Other energy-efficient options include fluorescent and induction lights. These lights have a lower wattage and produce less heat, making them more suitable for smaller grow spaces or those with limited ventilation. It is important to choose the right grow light for the size of the grow room and the type of cannabis being grown to ensure maximum efficiency and yield.
What are the best types of grow lights for growing cannabis?
There are several types of grow lights that are suitable for growing cannabis, but the best ones are LED grow lights and High-Intensity Discharge (HID) grow lights.
LED grow lights are highly efficient and have a long lifespan. They emit the full spectrum of light, which means that they deliver the right wavelengths for all stages of cannabis growth. They are also energy-efficient and generate less heat, which is important as excessive heat can harm cannabis plants.
HID grow lights, on the other hand, are more expensive and consume more energy than LEDs. However, they deliver more intense light, making them ideal for large-scale cannabis cultivation. They come in two types: Metal Halide (MH) and High-Pressure Sodium (HPS). MH bulbs are best for the vegetative stage, while HPS bulbs are ideal for the flowering stage.
Ultimately, the type of grow light you choose will depend on your budget, the size of your grow space, and the stage of cannabis growth you're targeting.
What is the ideal spectrum of light for growing cannabis?
The ideal spectrum of light for growing cannabis is a balance between blue, red, and far-red wavelengths. Blue light promotes vegetative growth and leaf development, while red light enhances flowering and fruiting. Far-red light is essential for plant growth and development, as it helps regulate the plant's circadian rhythm and activates photoreceptors that control growth and flowering. Full-spectrum LED lights are commonly used in indoor cannabis cultivation because they provide a balanced spectrum of light and are energy-efficient. However, some growers also use high-pressure sodium (HPS) or metal halide (MH) lights, which provide a more intense light spectrum but can generate more heat and use more energy. Ultimately, the ideal spectrum of light for growing cannabis depends on the stage of growth and the specific strain being cultivated.