If you’re looking for ways to improve your cannabis yields, a light for growing weed is essential. However, with so many options available on the market, choosing the right one can be daunting. Before making a purchase, there are a few factors you should consider to ensure you get the best value for your money.
Firstly, consider the size of your grow space. The light you choose should be appropriate for the size of your grow tent or room. Factors such as wattage and coverage area play a key role in determining the right light for your space. Additionally, think about the type of cannabis you’re growing. Different strains require different lighting conditions, so it’s crucial to research how much light your plants need.
When it comes to investing in a light for growing weed, asking the right questions can go a long way in helping you make an informed decision. How much do you want to spend? Do you need a light that emits both UV and infrared spectrum? Are you looking for energy-efficient LED lights or traditional high-pressure sodium bulbs? By having clear answers to these questions, you can narrow down your options and choose a light that meets your needs.
In conclusion, whether you’re a beginner or a seasoned grower, a light for growing weed is essential for cannabis cultivation. By keeping in mind the factors to consider when making a purchase and asking the right questions, you can find a light that helps you achieve higher yields and better quality buds.
10 Best Light For Growing Weed
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The product is ideal for growing indoor plants with full spectrum dual chip LED grow lights for hydroponic setups.
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This product is ideal for accurately measuring the amount of light needed for plant growth and monitoring photoperiods.
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The product is ideal for indoor hydroponic plant growth, supporting both veg and flower stages with full spectrum LED lighting.
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The product is ideal for indoor plant growing in greenhouses or hydroponic systems, providing full spectrum light and UV LEDs.
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The product is ideal for indoor gardening with a complete kit including grow tent, LED lights, humidity monitor, and potting soil.
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The product is ideal for efficient and powerful outdoor lawn mowing.
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This product is ideal for indoor gardening with a complete system including tent, fan, LED light, monitor, bags, and tools.
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Ideal for freshwater planted aquariums, providing full spectrum lighting with adjustable timing and waterproof capabilities.
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The product is ideal for measuring pH levels accurately in laboratory settings using a 3-in-1 pH/temp. electrode.
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The product is ideal for measuring the chlorophyll content of plants.
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1. Wy Cn Full Spectrum Led Grow Light
The WY CN 1000W LED plant light is designed with 100 pieces of 10-watt super bright double chips LEDs, providing a higher PAR/Lumen output per watt than other lights in the market. It has a 90/120 degree mixed LED angle, which is perfect for hydroponics greenhouse aquatic indoor plants growing, and can maximize growth.
This plant light has a daisy chain design, which allows multiple lights to connect in parallel at the same time, making it easier to use in larger spaces. If using the typical 110V AC supply, each light draws 1.6A. To ensure safety, it is recommended to not connect more than five lights together per chain.
Compared to traditional HPS/MH lights, the WY CN 1000W LED plant light can save up to 80% of energy while consuming only 80W ± 3%! It is perfect for a 4.5x5ft growing area at a height of 24 inches.
This plant light can be used for water-soluble culture and soil culture, making it suitable for all indoor growth environments, such as growth tents, growth rooms, greenhouses, and indoor gardens. It is important to pay attention to the growth pattern of the plant, adjust the height and use time to meet the needs of the plant.
The WY CN 1000W LED plant light comes with a 24-month warranty, 90 days money-back guarantee, and friendly customer service. Each product undergoes strict inspection before leaving the factory to ensure high-quality standards. If there are any problems or concerns, customers can reach out to the manufacturer through the contact information provided on the product page. Click the yellow Add to Cart button to enjoy this risk-free purchase.
- High power double chips design for brighter and better growth
- Daisy chain design for easy use in larger spaces
- Energy-saving, consuming only 80W ± 3% while replacing traditional 1000 watt HPS/ MH lights
- Suitable for all indoor growth environments
- Comes with a 24-month warranty, 90 days money-back guarantee, and friendly customer service
2. Plant Light Meter By Apogee Instruments
The DLI-400 Sunlight DLI Meter is a low-cost model that provides research-grade measurements of PAR (PPFD), DLI, and photoperiod. It is calibrated to measure direct sunlight and some broadband grow-light sources only, such as MH and HPS. The meter takes spot measurements and records and displays daily light integral in mol·m-2·d-1 and photoperiod in 0.2-hour increments for up to 99 days. However, for accurate measurements under all light sources, including LEDs, customers are advised to check out our DLI-500 and DLI-600 models.
Measuring and controlling the daily light integral and photoperiod is crucial for optimizing plant health, triggering flowering, and inducing other plant morphology effects. The meter provides onscreen display and USB-C download capabilities to analyze PPFD, DLI, and photoperiod data.
The DLI-400 Sunlight DLI Meter is built tough and rated IP65 to withstand harsh and wet environments. Users can place the unit directly on any level surface or mount it by attaching to commonly available camera tripods, clamps, or stakes using the standard camera-sized ¼-20 threaded port on the bottom. The package includes a protective case, meter, soil stake, AAA batteries, USB-C cable, screwdriver, and QuickStart guide.
Developed for use by the Apogee Instruments’ engineering team under the direction of world-renowned crop physiologist, Bruce Bugbee, PhD, the DLI-400 Sunlight DLI Meter is built for scientists and serious growers. The calibration is NIST traceable to accurately measure the combined intensity of photons between 400 and 700 nm to give a single sunlight PAR reading within 5% uncertainty. Unlike hobby-grade PAR meters that drift out of calibration quickly, this meter has a stable drift rate of less than 2% per year.
All meters are designed, built, and calibrated at our headquarters in Logan, Utah, USA. Apogee Instruments has been creating research-grade instruments for scientists and serious growers for over 25 years. All meters come with our industry-leading four-year warranty and are supported by our world-class, US-based customer support team.
- Provides research-grade measurements of PAR (PPFD), DLI, and photoperiod
- Displays daily light integral in mol·m-2·d-1 and photoperiod in 0.2-hour increments for up to 99 days
- Can be placed directly on any level surface or mounted by attaching to commonly available camera tripods, clamps, or stakes
- Built tough and rated IP65 to withstand harsh and wet environments
- Developed under the direction of world-renowned crop physiologist, Bruce Bugbee, PhD
- Calibration is NIST traceable to accurately measure the combined intensity of photons between 400 and 700 nm
- Stable drift rate of less than 2% per year
- Designed, built, and calibrated in the USA
- – Calibrated for measuring direct sunlight and some broadband grow-light sources only (MH, HPS)
3. Giixer Dual Spectrum Led Grow Light.
The new Dual-Chips 10w LED lights are a significant upgrade from the traditional 1000 watt grow lamps. They are bigger, brighter, and more efficient, but only consume 110 watts, making them energy-saving and eco-friendly. The light is perfect for enhancing the environment of plant growth. The Dual-Chips LED lights have a double switch system, which includes the Veg and Bloom buttons that performs different functions. The Veg switch, which is a combination of blue and white LED, is excellent for seeding or young vegetative growth. On the other hand, the Bloom switch, which is a combination of red and white LED, is ideal for flowering/blooming. You can use both switches simultaneously for optimal results. Another advantage of the Dual-Chips 10w LED lights is that they have a long lifespan of up to 50,000 hours, which is more than double the lifespan of many other grow lights that tend to last for around 20,000 hours. Besides, the lights have protecting diodes that ensure that even if one chip malfunctions, the others will still work. The full spectrum of the LED lights includes red, blue, yellow, white, and other colors that are similar to sunlight, which is perfect for all indoor plants at different growth stages. Lastly, the LED lights come with a 24-month quality guarantee and 30-day refund policy, ensuring customer satisfaction.
- Long lifespan of up to 50,000 hours
- Protecting diodes to ensure uninterrupted usage
- Energy-saving and eco-friendly
- Full spectrum that caters to different growth stages of indoor plants
- Double switch system for optimal results
- 24-month quality guarantee and 30-day refund policy
4. Ultragrow 2000: Full Spectrum Led Growing Lamp
The KOSCHEAL LED plant grow light is a high-efficiency lighting solution that utilizes the latest LM301B diodes and SMD LED technology. With the highest PAR/LUMEN output and energy efficiency of 2.8umol/J, this grow light is designed to replace a single-ended 400watt HPS/CMH grow lights. It speeds up photosynthesis to promote plant growth and development.
This upgraded commercial LED grow light is daisy-chain compatible, which allows for connecting with other grow lights to extend coverage. It saves energy, money, and time, and with no more than 3pcs growing lamps connected and used together by power cords. The power supply works on 90VAC to 277VAC, making it perfect for large rooms and commercial setups. It provides a 4’x4’ vegetative coverage and 3.5’x3.5’ flowering coverage.
The KOSCHEAL LED plant grow light offers a full spectrum of light that is suitable for different stages of plant growth. It includes 596 LEDs with a spectrum of 460nm, 620nm, 730nm(IR), and 396nm(UV). The UV diodes stimulate anthocyanins, which improve the quality of fruits and flowers. The spectrum of light is designed based on the light compensation point and saturation point of the plant(MJ).
This LED grow light is safe and durable, with no reflector design that is not heat-resistant. The cooling fans design of high speed and super quiet and upgraded aluminum cooling heat sinks improve heat dissipation efficiency and slow down light decay. The light is also designed to save the cost of changing lights frequently.
Worry-free purchase is guaranteed with the KOSCHEAL LED plant grow light. The manufacturer offers a 30-day money-back guarantee and US local after-service for 3 years. They promise to reply within 24 hours to any questions or concerns.
- High-efficiency lighting solution
- Latest LM301B diodes and SMD LED technology
- Highest PAR/LUMEN output and energy efficiency of 2.8umol/J
- Designed to replace a single-ended 400watt HPS/CMH grow lights
- Speeds up photosynthesis and promotes plant growth and development
- Daisy-chain compatible for extended coverage
- Saves energy, money, and time
- Full spectrum of light suitable for different stages of plant growth
- Safe and durable design
- Cooling fans design of high speed and super quiet
- Upgraded aluminum cooling heat sinks improve heat dissipation efficiency and slow down light decay
- 30-day money-back guarantee
- US local after-service for 3 years
- – Limited to no more than 3pcs growing lamps connected together
5. Bud Master Indoor Grow Kit
The Top Indoor Grow Tent measures 24" x 24" x 60" and is designed to provide optimal light-spectrum coverage, maximum PAR output at various distances, and super-bright lights. It comes with a 600-Watt Full Spectrum LED Grow Light that has two separate switches for Veg and Bloom functions, making it a great energy-saving option for growing plants in a closet, pantry, or corner of your room.
In addition to the grow tent and LED light, this kit includes a supply of 4" carbon air filter, 2x steel ducting, 4x Duct Clamps, 3x Rope hangers, 2x Grow Plant Pot/Saucers, Heat & Humidity monitor, Electronic timer, Clip Fan, Pruning Snip, 2x Germination Domes, 5x Rapid Rooter, 1x Power Cord, Leather gloves, and 4x Fermenting Bottles. The Filtration System is through a 4" fan, high CFM Inline Exhausting Fan with 5-speed controls.
This indoor grow tent is tailor-made for taller and easier plant growth, ensuring long-lasting use. It is a premium indoor grow tent room with reflective 600D Mylar hydroponic non-toxic hut, part of the Hulk Series. The tent is assembled by hand using high-quality items to ensure an efficient and enjoyable growing experience.
This indoor grow kit is suitable for growing any kind of plants, whether it be flowers, vegetables, or herbs. It comes with specially formulated CaliSuperSoil "Hot Soil" (two bags/6lbs) and Fox Farm Potting Mix (20 Quart), which behaves like little sponges that control water well. This is a complete set of indoor grow kits for beginner and advanced growers/planters.
The total growing solution provided by this kit includes the best super-soils, tents, grow LED & HPS lights, fans & carbon filters, and support grows materials. It allows you to take pride in your grow from start to smoke and enjoy the low cost, high quality of a 100% organic and natural yield.
- Comes with a 600-Watt Full Spectrum LED Grow Light with Veg and Bloom functions for optimal light-spectrum coverage and maximum PAR output
- Includes a comprehensive kit with various items such as a Heat & Humidity monitor, Electronic timer, and Leather gloves
- Tailor-made indoor grow tent for taller and easier plant growth, ensuring long-lasting use
- Suitable for growing any kind of plants with specially formulated CaliSuperSoil "Hot Soil" and Fox Farm Potting Mix
- Provides a total growing solution with the best super-soils, tents, grow LED & HPS lights, fans & carbon filters, and support grows materials
- – May be expensive for some customers
- – Requires some assembly prior to use
6. Fohse F1v 600w 100-277v
The LED grow light features advanced Samsung LEDs that emit a Photosynthetic Photon Flux (PPF) of 1,440 μMol/s, making it an ideal light source for indoor gardening and hydroponic applications. The fixture has a 30% dimming feature, allowing users to adjust the light intensity as needed. With a high fixture efficacy of 2.4-2.6 μMol/J, this LED grow light delivers more light output per watt consumed, resulting in significant energy savings.
The input power for this LED grow light is 600 watts, and it can accommodate input voltage options up to 480V, making it versatile for use in different settings. The fixture dimensions are 42.0L x 46.5W x 4.6H in, and it weighs 38 lbs, making it easy to install and move around as needed. The LED grow light features passive thermal management, which helps dissipate heat efficiently, resulting in a low BTU output of 2,047 BTUs/hour.
- Advanced Samsung LEDs for optimal light output
- 30% dimming feature for light intensity adjustment
- High fixture efficacy for energy savings
- Versatile input voltage options
- Lightweight and easy to install
- Passive thermal management for efficient heat dissipation
7. Vivosun Complete 4x2ft Grow Tent System
The VIVOSUN Complete Grow Tent System is the perfect solution for indoor plant growth. It includes a 4 x 2 ft. grow tent with an observation window and floor tray, a 4-inch inline fan package, a VS2000 LED grow light, a temperature humidity monitor, a 3 x 3 ft. elastic trellis netting with hooks, 5-pack 5 gallon grow bags, a 6.5-inch gardening pruning shear, and a 7-day programmable timer.
The grow tent is equipped with a lined zipper double stitched to prevent light leaks and is made of 100% reflective mylar to ensure plants fully absorb the nutrients and energy from the light. The VS2000 full-spectrum LED grow light provides the power and maximum PAR output needed by plants for maximally efficient photosynthesis.
The system also includes a heavy-hitting blower with a fan speed of 2300 RPM for an airflow of 190 CFM. This moves air through the target location quickly and efficiently for optimal ventilation. The carbon filter eliminates some of the most undesirable and pungent smells.
The pots are made from 300 g thickened nonwoven fabric that does not retain excess water, allowing the roots to breathe for healthier, more vigorous growth. They also come with double-stitched handles, which help effortlessly transport them when full of soil and plants.
With the VIVOSUN Complete Grow Tent System, you get a sturdy, durable, and portable solution for all your indoor plant growth needs.
- Complete system for indoor plant growth
- Observation window and floor tray included
- Full-spectrum LED grow light for efficient photosynthesis
- Effective ventilation with a heavy-hitting blower and carbon filter
- Thickened nonwoven fabric grow bags for healthier and more vigorous growth
- Double-stitched handles for easy transportation
8. Hygger 24/7 Led Aquarium Light With Lcd
Upgrade the lighting of your aquarium with this high-quality LED light that uses WRGB lamp beads. The three primary colors are scientifically adjusted to simulate natural light without flickering, promoting the growth of aquatic plants and making the water look more sparkly clean. The color of the water plants also looks lifelike, providing a beautiful sight to behold. This aquarium light is suitable for freshwater fish and aquarium plants, but not for saltwater use.
This aquarium light features three programmable usage modes. The DIY mode has 8 time periods covering 24 hours. You can set the start time, end time, light color, and brightness of each time period according to your preferences. The brightness of the white light in day mode can be adjusted from 10% to 100%. The light color of night mode can be set to one of red, orange, yellow, green, cyan, blue, and purple. You can set the time of day mode and night mode freely to suit your schedule.
This aquarium light has a good waterproof rating of IP68 and effective heat dissipation due to its optimized lamp body design. The full-sealed process protects the device from humidity and water intrusion, so you don't have to worry about splashing or accidentally falling into the water. The 1.2mm premium aluminum shell provides more effective heat transfer, and there's no fan and low voltage DC adapter, making it safe to use and energy-saving.
The wired controller of this aquarium light has an LCD monitor that displays the current time, current mode, running start time or running end time, current light color, and brightness. The controller has a clock to keep time for the 24-hour settings, and when the time is up, the light will turn on or off automatically. The six setting buttons ensure a more convenient and fast setting of the working mode you want.
With this aquarium light, you get everything you need to upgrade your aquarium's lighting. The package includes 1 LED light with a controller, 1 AC/DC adapter, 2 adjustable metal brackets, and 1 user manual. The 22W aquarium light has 57 white lamp beads, 7 red lamp beads, 4 green lamp beads, 22 blue lamp beads, and 23 RGB lamp beads.
- Uses WRGB lamp beads that simulate natural light without flickering
- Promotes the growth of water plants and makes water look more sparkly clean
- Good waterproof rating of IP68 and effective heat dissipation
- Features three programmable usage modes with a DIY mode that has 8 time periods covering 24 hours
- Comes with a wired controller with an LCD monitor that displays current time, current mode, running start time or running end time, current light color, and brightness
- – Not suitable for saltwater use
9. Acculab 3-In-1 Benchtop Ph Meter
The pH meter comes with a 201T-F 3-in-1 combination pH electrode, which allows for simultaneous measurement of pH and temperature. It also features an advanced auto-calibration mode with calibration guide and self-diagnosis, making it easier to use. With the use of advanced digital processing technology, the pH meter generates quick and stable readings.
The pH meter includes an easy-to-install electrode holder and pre-mixed calibration solutions, making it a hassle-free experience. Its IP54 spill-proof and dust-proof design ensures durability and reliability. The pH meter can store up to 50 groups of data, allowing for easy tracking and analysis of readings.
Overall, the pH meter is an advanced and accurate tool for measuring pH and temperature, with features that make it easy to use and store data.
- Simultaneous measurement of pH and temperature
- Advanced auto-calibration mode with calibration guide and self-diagnosis
- Quick and stable readings with advanced digital processing technology
- Easy-to-install electrode holder and pre-mixed calibration solutions
- IP54 spill-proof and dust-proof design ensures durability and reliability
- Can store up to 50 groups of data for easy tracking and analysis
10. Tys-4n Portable Chlorophyll Meter For Testing Plant Chlorophyll
The Chlorophyll Meter is a highly accurate device that is suitable for measuring the relative chlorophyll content (SPAD units) or 'greenness level' of plants. It has a measurement range of 0.0-99.9 SPAD for chlorophyll, 0.0-99.9 mg/g for nitrogen content, 0.0-99.9 RH% for leaf surface humidity, and -10-99.9℃ for leaf surface temperature. The measurement area is 2mm*2mm, and it has a high sensitivity with a measurement time interval of less than 3 seconds.
This device is highly accurate, with a margin of error within 1 SPAD unit. It collects 30 data points automatically, calculates the average value, and displays it immediately. The Chlorophyll Meter is also easy to use, featuring a rechargeable lithium battery for easy carry. Additionally, it can be set up in multiple languages, with English set as the default language before shipment.
- Highly accurate measurements within 1 SPAD unit
- 30 data points collected and averaged for immediate display
- Fast measurement time interval of less than 3 seconds
- Rechargeable lithium battery for easy carry
- Multiple language options available
Best Light For Growing Weed FAQs
Can LED lights be used effectively for growing cannabis?
Yes, LED lights can be used effectively for growing cannabis. In fact, LED lights have gained popularity among cannabis growers due to their energy efficiency, low heat emission, and versatile spectrum options. LED lights emit different wavelengths of light that can be adjusted to meet the specific needs of the plants during different stages of growth. This means that growers can customize the spectrum of light their plants receive, which ultimately leads to higher yields and better quality buds. LED lights are also more cost-effective in the long run compared to other types of grow lights, as they consume less energy and last much longer. However, it's important to note that not all LED lights are created equal, and it's crucial to choose a high-quality LED light that meets the specific requirements of your cannabis plants. Overall, LED grow lights can be an effective and efficient lighting option for growing cannabis indoors.
How does the color spectrum of light affect cannabis growth?
The color spectrum of light has a significant impact on the growth of cannabis plants. Different colors of light have varying wavelengths, and each wavelength affects the plant in a specific way. For instance, blue light stimulates the growth of leaves and stems, while red light promotes flowering and fruiting. Therefore, providing the right balance of different color spectrums is crucial for optimal growth and yield.
Cannabis plants require a full spectrum of light for photosynthesis, which is essential for their growth and development. They need a mix of blue and red light, with a higher ratio of blue light during the vegetative stage and more red light during the flowering stage. This ensures that the plant receives the right amount of light for each stage of growth.
In addition, light intensity and duration also impact cannabis growth. Too much or too little light can stress the plant, affect its metabolism, and reduce yield. Therefore, it's important to provide the right amount of light intensity and duration, along with the right color spectrum, to ensure optimal growth and yield of cannabis plants.
How much light do cannabis plants need to grow?
Cannabis plants require a significant amount of light to grow properly. The amount of light required varies depending on the growth stage of the plant. In the vegetative stage, cannabis plants require at least 18 hours of light per day. This is because the plant is focused on growth during this stage and requires a lot of energy to develop strong stems and leaves. During the flowering stage, the plant requires 12 hours of light per day and 12 hours of darkness. This is because the plant is shifting its focus towards producing buds and needs a period of darkness to trigger the flowering process.
In terms of the intensity of the light, cannabis plants require a high level of light intensity. This can be achieved using high-intensity discharge (HID) lights, LED lights, or fluorescent lights. The intensity of the light should be adjusted depending on the stage of growth and the distance between the light source and the plant.
It is important to note that providing too much light can also have negative effects on the plant's growth. It can cause the leaves to burn, which can stunt growth and reduce yields. Therefore, it is important to find a balance between providing enough light to promote healthy growth and not overexposing the plant to light.
What is the ideal distance between the light source and cannabis plants?
The ideal distance between the light source and cannabis plants varies depending on the type of light and the stage of growth of the plant. For instance, LED lights should be placed closer to the plants than HID lights due to their lower heat output. Generally, during the vegetative stage, the light should be placed 18-24 inches away from the plants, while during the flowering stage, it should be 12-18 inches away. However, it's important to monitor the temperature and humidity levels regularly as well because high temperatures can damage the plants and cause stunted growth. Additionally, the distance should be adjusted based on the growth rate of the plants and their response to the light. It's crucial to strike a balance between providing sufficient light and avoiding heat stress, which can adversely affect the growth and yield of the plants.
What kind of light is best for growing weed?
The type of light that is best for growing weed is the one that emits a full spectrum of light. This includes both blue and red wavelengths, which are essential for the plant's growth and development. LED grow lights are the most popular option among growers as they are energy-efficient and can be customized to the specific needs of the plant. HPS (High-Pressure Sodium) lights are another option that has been used for years by growers, but they produce a lot of heat and require proper ventilation. CFL (Compact Fluorescent Lamp) lights are a budget-friendly option for small grow spaces, but they are not as powerful as LED or HPS lights. In summary, the type of light that is best for growing weed depends on the grower's budget, grow space, and the specific needs of the plant. However, LED grow lights are generally the most popular and efficient option for most growers.