With today’s modern life, the use of LED lights for home-grown or large-scale weed is being widely applied and is considered a useful solution for lousy lighting conditions. Using the best LED grow lights for weed can lead to fantastic productivity.
However, many people still do not know this type of light, so they are still skeptical about its use, as well as not knowing how to use it to maximize its use. Many people feel new to this type of light and misunderstand that the LED light used for growing weed is similar to the natural light used for lighting, but it is not valid.
Because this light only focuses on the right wavelength spectrum to help plant photosynthesis, while conventional LED lighting does not focus on this issue but focuses on the primary lighting purpose.
It is also the main note that you need to keep in mind when buying LED lights to plant weed, you need to buy the right specialized lamps to bring higher lighting efficiency.
Top 10 Best LED Grow Lights for Weed
#1 PlatinumLED Grow Lights P1200 LED Grow Light (Best Overall)
The Advanced Platinum Series P1200 LED Grow Light from PlatinumLED Grow Lights is one of the best LED grow lights for weed and cannabis due to its optimal power and efficient performance.
Primarily, this unit has a more expandable spectrum compared to other HPS lights on the market. Generally, HPS light is commonly used in lighting plants. They are also widely used in outdoor lightings, such as road and protective lights. The spectrum is estimated of advanced 12 bands, which is perfect for the chlorophyll’s absorption rate of the plants. This estimation ensures that the lighting effects can reach to the development of the weed in the most efficient way.
Moreover, it contains the highest score of Photosynthetically Available Radiation (PAR) among numerous rival products. And it is higher than any HPS or LED lights’ PAR on the market so far.
I have to mention that the PAR value and spectrum level are the essential elements to determine the efficiency and productivity of the best LED grow lights. And the product PlatinumLED Grow Lights has two of them.
Nevertheless, it is equipped with Ultra-violet rays and infrared construction to maximize the wavelengths and create the most realistic environment for the plant. It is quite sure that this LED system would lead your weed to the maximum growth fastly.
The manufacturer uses 3W LED lights and 90-degree focusing lenses to optimize the lighting power. The light set also has an aluminum frame and radiator system against the overheating issue.
Nevertheless, the unit gives a superb 12-band spectrum with ultimate UV-rays to accelerate growing time of the plants. It can be a suitable replacement light for a 1400-watt HPS light.
There are two functional switches of ‘Veg’ and ‘Flower’ for planting different items. These features help to optimize the productivity and efficiency of growth processes. The ‘Veg’ button is for more leafy plants, while the ‘Bloom’ button is for more spectrum.
If you plant weed, keep the ‘Flower’ function away as it is compelling and can cause damages to the plant. Remember to study the unit’s instruction carefully before applying it to the real planting process.
In brief, the Advanced Platinum Series P1200 LED Grow Light comes in six distinct sizes for specific purposes. The manufacturer offers a five-year warranty policy for their product. In case of severe damage, there is a 90-day satisfaction policy for you.
- Highest output and one of the most efficient performance
- Outstanding design with ultimate components
- Re-designated aluminum frame with overheat prevention
- Comes with six choices of output power from 150 watts to 1200 watts
- Multi-functional features
- The hangers must be purchased individually
- Particular LED lights are not powerful
- Too expensive
#2 VIPARSPECTRA Series PAR1200 LED Grow Light (Best Dimmable Light)
VIPARSPECTRA is reputable in applying the most modern technology in their LED grow lights. And this PAR1200 LED Grow Light is one of the best LED grow lights for dimmable and consistent lighting effects.
This PAR1200 is the best solution for those who require customizing light based on plan and schedule while planting weeds. There are different levels of dimmable light for you to select based on the specific conditions and requirements.
The dimmable LED light is a perfect choice if you are planting multiple plants in a common area. The dimmable lighting configurations can be switched to meet the growth conditions of different vegetables and flowers.
It is also used to adjust the portion of different kinds of the plant on the surface. The light of VIPARSPECTRA is equipped with secondary optical lenses for the ultimate performance. You can ideally control your plating area with this unit.
What most people love about this PAR1200 LED grow light is its versatility, which gives sufficient lighting conditions for every stage of plant growth from seeding, flowering to fully developing. It will take the growing operation to the highest perfection.
Amazingly, it comes with high-technology 5W Bridgelux LED chips, a 200% increase in canopy penetration, and a built-in timer design. They create an ideal timing schedule for weed development.
And you cannot go wrong with a full package included with remote control, user’s instruction manual, hanging kit, and power cord. It will make the installment much easier and simpler.
This product comes in four distinct sizes, which are PAR600, PAR600T, PAR700, and PAR1200. Each model has different HPS, power draw, and coverage. However, some customers claim that it is too heavy and hard to hang even with a grown man.
- Dimmable light for customizing lighting schedule and growing plan
- Extremely powerful and durable with a 100,000-hour lifespan
- Timer control and automatic shut-down function during daytime
- Receives tons of positive reviews
- Different sizing choices
- The PAR600 and PAR600T models have the same coverage
- Quite heavyweight
#3 MORSEN Grow Light (Best for Large Area)
The MORSEN Grow Light steps up the game due to its large capacity and ultimate performance for a spacious growing area. If you are building a large weed farm with a concern about cost expenses, you cannot miss this fantastic unit.
Most of the LED grow lights offer power ranges around 1000 watts (equivalent to 100-watt HPS), but the MORSEN manufacturer provides more than double of it. And they come with two power options, 2000 watts, and 2400 watts.
Both two offers are compelling, efficient, and well-perform for all plating tasks. The particular lights are equipped with 10-watt dual LED chips, in which the light set contains red, blue, white, UV, and infrared LED lights.
Moreover, the LED lights provide 120-degree coverage even with the extra-large surface. The cooling system contains a 360-degree cooling port, which improves the heat-calming features to expand the long-lasting lifespan of the product.
The light is extremely durable and long-lasting with about 50,000-hour lifespan. The unit is also certified by many trustable organizations such as CE and ROHS. So, you have no concern about health issues or safety when using this product.
And it is an excellent function for ultimate energy-saving benefits but still provides a maximum growth for the plant. And lastly, the unit comes with a three-year warranty and 30-day money-back guarantee.
- Save more than 80% cost of energy
- Suitable for all plants including vegetable, fruit, and succulents
- Extremely efficient and well-performed
- Offers higher outputs than other products
- Full-spectrum light
- Inexpensive corresponding with high efficiency and low power draw
- No diversification of choices
- No dimmable function
- No switch of different modes such as ‘Veg’ or ‘Bloom.’
#4 Phlizon Newest LED Plant Grow Light (Most Reviewed)
With over 2,000 reviews on the Amazon website, Phlizon Newest LED Grow Light is the most reviewed product in this list. What makes people crazy about this LED grow light? It is because of its efficiency, full-spectrum, and high-quality package.
The unit comes with three choices of different power, 600, 900, and 1200 watts. The actual power draw and coverage capacity is equally correspondent to its performance. All models have strong UV protection and fire-proof cover.
And the prices are not too high compared with their efficiencies. It is also extremely reliable with a lifespan of more than 50,000 hours, which is so impressive for an affordable unit.
For plating weed, the 1200W model is strongly recommended as its broad coverage and low power draw when its output is exceptionally high. On the other hand, even with different wattages, all the models have the same daisy chain function.
Notably, the unit comes with a digital thermometer and humidity gauge to keep track of the plating operation. All the lights are equipped with dual cooling fans to prevent the overheat occurrence, which increases the lifespan of the sun.
- High PPFD value and spectrum for each wavelength
- High efficiency and productivity
- Durable and long-lasting
- High LED distribution through the large area
- Double cooling fan for each light
- No dimmable function
- Hard to install and hang the light set
- No instruction manual provided
#5 King Plus 1000W LED Grow Light (Best Technology)
The King Plus LED Grow Light is a prestigious product from a China-based factory, KingLED. They have a five-year experience in developing and directly manufacturing the best LED grow lights for the domestic market.
And that’s why their product is applied with the latest technology on the market, especially with the King Plus LED Grow Light.
It uses the ultimate 1,000-watt LEDs, which enhances photosynthetic efficiency, improves healthy growth, and shortens the growth cycle of plants.
The LED lamp consumes quite low power, only about 185W. If you only use 6 to 7 hours a day, the product can consume 1kW each hour in 1 month, thereby saving energy and electricity bills a lot.
The product comes with safe quality, environmentally friendly, has a long service life up to 50,000 hours. It emits light without harmful rays, toxic substances, affecting human health when receiving contact.
With its compact design, users can install the LED light anywhere in your home-grown space without having to use extra, hassle-free wiring. The KingLED’s rays can be used to grow many fruits and vegetables at the same time.
- Consumes less energy than other benchmarks
- Full-spectrum with red, blue, white, IR and UV rays
- Double LED lights for high efficiency
- Ventilated glass cover and multiple heat sinks for overheat reduce
- Two modes for vegetable and flower can operate simultaneously
- Suitable for all growing stage of the weed
- No information about the actual draw or withdraw power wattage
- No reflector or dimmable functions
- No choices of power or size
#6 VIPARSPECTRA VT300 LED Grow Light (Best for Growing Operation)
The VT300 LED Grow Light from VIPARSPECTRA is one of the best LED grow lights to push your growing operation to the ultimate stages. The LED light comes with a timer control for time management and growth optimization.
The set is offered with five sizing options, 300, 600, 900, 1200 and 1350 watts. Notably, the 900-watt light set is most-purchased due to its sufficient power and coverage for planting weed.
The 900-watt LED light offers an actual power draw of 405 watts with only 100-240V power supply and can cover up to 4 x 4 feet. All the options are featured with 100,000 hours of long-lasting lifespan.
With reflector design, the manufacturer had done a great job in balancing the PAR value and sustainable coverage for the unit. Every weed in the whole surface will reach equal and steady growth with the fantastic group.
Moreover, the light is made of aluminum against the overheating problem. And with a self-constructed fan, it keeps the light 70% cooler than other products on the market. The product also comes with remote control for brightness and time adjustment.
Similar to other premium products, VT300 LED Grow Light manufacturer offers a three-year warranty, which includes a 30-day return policy of severe damages.
- Suitable for all growth stages of the plants
- Long-lasting for up to 100,000 hours
- Slow input but extremely high-power draw
- Comes with a full set including hanging kit
- Powerful LED lights with a reflector design
- The applied technology and controlling panel are complicated
- The machine is easy to malfunction and shut down
- There are no choices of different sizes
#7 Roleadro LED Grow Light (Best-Selling Light)
The Roleadro LED Grow Light is one of the fastest-selling lights on Amazon’s online shopping platform as its incredible quality and palatable prices correspond to each selected model.
Besides VIPARSPECTRA, Roleadro is one of the best LED grow lights brands with more than ten years of experience in the planting operation equipment industry. The Roleadro LED product has the most basic design and simple operating system.
That’s why it is prevalent for home-grown owners and small planting enterprises. If you want to grow high-quality weed in a small area with affordable and efficient lighting equipment, this unit is undeniable.
The only disadvantage of this product is it only comes in three options, 600, 1000, and 1500 watts. But surprisingly, each model has particular merits and demerits.
- The 600-watt light is small in size with a complete set of white lights with no red and blue lights. It provides an efficient spectrum as same as sunlight with a 60-degree reflector function for coverage maximizing.
- The 1000-watt model has a powerful nine-band spectrum, which is appropriate for planting most kinds of vegetables and support for the vegetative stage of the weed.
- The ultimate 1500-watt is enhanced with 3500K complete-spectrum, which gives it a full capacity to reinvent the sunlight environment in your house. The light set combines 90- and 120-degree lenses for the utmost performance.
All three models run a daisy chain function, which is the easiest method for customizing to grow light on a small surface. They are incredibly efficient with a non-vibrant cooling system, and high-quality aluminum heat sinks.
Lastly, the Roleadro products come with reliable warranties and trustable customer services for any accidental damages and product illustrations. Primarily, most customers are in favor of a two-year chip replacement warranty.
- Two-year chip replacement warranty and 30-day money-back guarantee
- Unique and efficient LED Bead and Zener design
- Extremely affordable price for all models
- Super-bright LED lights
- 600-watt model provides all-white LED lights to simulate sunlight preciously
- Not much choice of size and power
- No retail store located, only online purchase
- No full-spectrum on some models
- Some information about coverage and power draw is inaccurate
#8 VIPARSPECTRA UL Certified LED Grow Light (Most Durable)
VIPARSPECTRA has offered one of the best LED grow lights with the power range from 300W to 900W, and it is VIPARSPECTRA UL Certified LED Grow Light. Its design is neat and compact. Overall, you cannot go wrong with this affordable choice.
All the light components are well-made and efficient the same as top-notch products on the market. The lighting system includes red, blue, and infrared LED lights, which is corresponding to each growing stage of the weed.
The bugs are more prominent, and there are on and off switches for the different plants, from vegetables to flower planting. The product comes in four choices of size, 300W, 450W, 600W, and 950W. Uniquely, the 600W model is equipped with dimmable knobs.
The unit has an outstanding performance. All the LED lights run smoothly and stably for a long time. There is an excellent cooling system that includes a 4.72-inch fan and an extra-large aluminum heat-absorbent sink to prevent the situation of overheating.
Moreover, the set comes with a sufficient hanging kit. Many customers praise the hanging equipment as it helps a lot in keeping the light set balance and stable. And it is straightforward to hang with simple steps.
Last but not least, I want to state the durability and reliability of the product. It is meticulously well-made and brings efficient performance. Most of the reviews discuss how amazing the powder-coated finish of the lights is.
Some people love the non-vibrant fans and the effectiveness of the light in balancing PAR value. After all, the unit comes with a worry-free three-year warranty and a 30-day money-back guarantee for accidental damages.
- Compact design and well-made details
- The high-quality and active cooling system
- Reflector design for extra PAR value with no energy required
- Affordable prices four all four choices
- Dimmable features included in the 600W model
- Durable and efficient
- Bad customer service
- Small light footprint
#9 Yehsence LED Plant Growing Lamp (Most Accessible)
The Yehsence LED Growing Lamp is a perfect choice for those who begin to plant weed. The unit has an effortless design that even a novice can use with ease.
The product comes with three choices of power classification, 1000, 1500, and 2000 watts. All three models are efficient and sturdy enough for any home-growing owner.
They also have impressive maximum coverage compared with other units at the same price range, which can cover up to acreage of 7.8 x 7.8 feet. They are equipped with two modes of ‘Veg’ and ‘Bloom’ for full customization of the planting schedule.
Mainly, the light provides one of the fullest and brightest spectrums for the weed to grow. The daisy chain function also helps to spread the lighting cover for higher productivity.
- Affordable and high energy-saving
- Three-year warranty and 90-day money-back guarantee
- Durable and reliable
- Huge in size
- The three options are not different in features or designs typically
- Not high-quality as other products
- No outstanding or unique functions
#10 MAXSISUN 1000W LED Grow Light (Best Price)
MAXISUN 1000W LED Grow Light stands out with its most affordable price on this list. It has a compact, simple design, is covered with high-grade aluminum shell, capable of excellent heat dissipation, and enhances high durability.
The MAXISUN photosynthesis LED hinges can match the standard types like high-end E27 and GU10, you can install and hang it anywhere in your garden.
The surface of the plant lamp is equipped with super bright, high-quality LEDs, including red lights with wavelengths from 650 to 660nm, which is best for flowering and seed production.
The LED light is high brightness, a full 120-degree lighting angle. With high-quality materials, excellent durability, and long service life of up to 50,000 hours, you can reduce the cost of maintenance, repair, or replacement.
The product emits less heat and does not use much electricity. So, this LED light bulb can be used for long periods and is always warm, while saving energy and electricity consumption monthly.
Overall, it is a premium product with outstanding functions specifically. The unit has an aim to cost you as little as possible but still brings high efficiency.
- Two-year limited warranty and 60-day money-back guarantee
- Sturdy and lightweight design
- ‘Bloom’ and ‘Veg’ switches for plant customizing
- Easy to use and install in the high area
- Affordable price
- No choice for other power or size
- No dimmable function
- The timer control is not included
- The maximum coverage is quite low compared to other products.
Factors You Should Think Through When Buying LED Grow Lights
Light Intensity and Performance
You can choose a lamp based on the light intensity in two ways: based on the brightness and the distance between the light bulb and the leaf of the tree. You can choose a LED that emits less heat, uses less electricity, emits light that lasts up to five times longer than fluorescent bulbs, and does not contain any mercury.
Do not use incandescent bulbs often for plants because they radiate a lot of heat and can burn the foliage. Using efficient lighting efficiency results in less energy loss due to the heat generated by the light, helping you save on monthly electricity bills.
Scientists often classify plants by the influence of light to flower into three groups: long day trees, short day trees, and neutral trees (can flower in both short and long day conditions, as long as the tree has enough growth).
Night time is the critical time to flowering response of plants. Therefore, large day trees are short night trees. Short day trees are tall night trees. Depending on the amount of light to the flowering of your home plant to choose lamps with appropriate lighting capacity.
Blue light is emitted at a color temperature between 5000K and 6000K or wavelengths from 400 to 500 nm. It is the best color for the growth stage, along with the development or seeding stage.
This color range helps to develop leaves and stimulates the production of secondary pigments in the leaves. Thereby, it increases the color and aroma of plants, which is suitable for use on lettuce and other crops with stunted growth and density.
Greenlight usually has a wavelength of 540nm, which is used in the dark cycle of plants because it does not activate photosynthesis, especially useful if your crop needs a longer time at night than time in the morning.
The color range of red light emits a color temperature between 2000K and 3000K with wavelengths from 640 to 680 nm, often used in an essential stage of the plant, which is when flowering.
Red light is often used to signal that there are no other trees on it to grow without hindrance, thereby promoting the growth of the trunk and the height of the whole tree.
In particular, they also encourage the production of chlorophyll and fruit, which is suitable for extending the light cycle of long-term plants and vice versa for short-term plants.
Determine the Purpose of the Lamp
Determining what the purpose of the lamp is to choose a fire with the right wavelength of light. It is best to check your crop needs. Some plants need a full or higher view, while others need low light.
If your tree is sensitive to intense light, you cannot waste your money on brightly lit LEDs, which will dry or burn your tree. You can choose the type of light with a wavelength ratio with green and red colors suitable for each different crop group to help photosynthesis and healthy development.
Use LED lights to sustain plants.
It is best to use a lamp with two fixed wavelength spectrums with Blue is 460nm, and Red is 660nm. Additional lighting time for trees from 10 to 12 hours a day.
Because houseplants are usually grown up, you only need to provide light and provide essential spectrum light to help plants maintain life and generally grow without growing too fast or requiring adjustment.
Use LEDs to stimulate plant growth.
For this need, you should use a LED tree that has multiple wavelengths with a blue range of 425 to 475nm and a red field of 620 to 730nm with a red-green ratio suitable for the tree group.
Size of the Space Planted
Before buying a lamp, you need to measure the length and width of your garden, and then divide your planting space into areas to determine the number of lights you need.
The principle of choosing a lamp is to generate 32W of actual light per square foot (about 0.093 square meters) of light for growing flowers or other large flowering plants.
But for optimal results, this number must be above 50W and possibly up to 80W. If you measure the size of your planting space to 16 square feet (about 1.5m²), then you need to buy lamps with at least 500 to 550W of suitable light. You can find the lighting area of each lamp on each product label
78 degrees Fahrenheit is the highest rated temperature for any plant, when the carbon dioxide level is around 360 PPM.
You should monitor the temperature in the root zone. The air temperature should be 85 degrees Fahrenheit, which is a bit higher than the cooler evening air.
As temperatures get higher, nutrient concentrations are greater in drier areas. It can create toxic levels in the root zone. Therefore, it will reduce from 25 to 30% of the nutritional concentration.
Who makes the best LED grow lights for weed so far?
VIPARSPECTRA is always a monster in the field of the best LED grow lights. Their products come in variable sizes, functions, and efficiencies. From the cheapest products to the most high-end units, VIPARSPECTRA always is viral for any brand.
What is the most important criterion when choosing the best LED to grow lights?
For your vegetable garden to grow well, you should be provided with adequate light, which is an important criterion when buying lamps.
The lumens index usually calculates the light intensity. You can use the meter to measure this indicator. At a distance of 30cm, the light intensity of the LED must be over 3,000 lumens to grow well.
If the lumens index is lower than 3000, the vegetables will not grow well. Even if grown-up but quite weak, it will have the phenomenon of stretching and falling. You need to measure the area of vegetables to find the right number of LED lighting.
Although you use a long-form lamp with an output of 18W, which can illuminate an area of 20 to 30m2, when used for growing vegetables, every five square meters of land must have five 18W-bulbs to meet the intensity. Lighting helps vegetable gardens grow.
What should I notice when using a LED grow light?
Vegetables often have a process of growing to adapt to natural conditions. So, you need to pay attention to the time to turn on or turn off the light.
Ideally, you should provide light for the vegetable garden from 8 to 12 hours and turn off the lights for 6 to 10 every day at the right time, creating a day and night cycle as in nature, thereby helping plants grow normal.
When using, always remember to water the vegetables regularly, keeping the soil moist but not too much water. Don’t leave plants in your garden too close to light from the lights to avoid dehydration and leaf burning.
It is best to place the lamp no more than 10 to 12 inches away from the vegetable. You can check it by putting your hand on the plant, if you feel the heat, the light from the LED plant light might be too close.
What should I do to ensure safety while using this product?
Protect your skin when working with LED grow lights at any time. Wear eye protection when working with equipment in a greenhouse because some light can emit UV radiation.
Keep wires and lighting equipment away from irrigation systems to prevent electrical circuits and electrical shock.
If the crop surface is too hot, increase the distance between the LED and the surface. For low-power systems, preferably a difference of 2 to 3 feet between lamps and treetops, high-power systems need 4 to 6 feet.
When you prefer to use fluorescent light bulbs, choose a plant light bulb that doesn’t contain any toxic substances, thereby avoiding the chemical risks of an incident.
Install properly planted LED lights with protective lenses to minimize the risk of toxic materials like mercury.
What is the most common mistake when using a LED grow light?
The most common mistake is misusing lighting time. Due to many reasons, there are some families who use the wrong time to illuminate the indoor garden, making the plants less developed, and the life of the tree reduced.
How to fix:
For flower stands: Distance from hanging from the leaf surface to the lamp is 1m, corresponding to the area where the light can be projected onto the tree’s wall is 1m2. Lighting time from 12-14 hours per day.
With a vegetable stand garden: Hanging lamp distance from 1.3 to 1.5m, corresponding to the area of the lamp that can be projected on the tree is 1.5m2. Lighting time from 10-12 hours per day.
Hydroponic garden: Lighting time from 10-12 hours per day.
With flower gardens and orchards:
- For long-day trees, the lighting time for trees can last from 15-21 days per batch, an average of 3 times per year. Illumination time per night is 5-7 hours (from 22:00 – 4:00 AM the next morning).
- For short day trees, the lighting time per night can be shortened from 10 hours to 4 hours, 2 hours per day, lasting 7-10 days.
- For gardens without sunlight: Additional lighting time for trees from 10-12h per day.
How can I choose the most suitable LED lamp for my garden?
For indoor standing gardens, the color of the indoor photosynthesis LEDs overwhelms the green of the tree, causing localized purple leaves, making the plants, flowers and vegetables discolor.
- Solution: replace with LEd lamps equipped with technology to simulate sunlight.
For a hydroponic garden, choosing the wrong lights makes the plants not photosynthesis, no flowers, fruits as expected.
- Solution: It is recommended to use lamps with integrated 3-color RGB (red, green, blue) to ensure that the tree still photosynthesises well in the hydroponic environment.
For flower gardens and orchards, irrespective of tree group to choose the right lamp type, which makes the tree prone to photosynthesis and poor development
- Solution: It is recommended to use LED lights with a wavelength of 620nm-660nm (red light), for photosynthesis and plant growth.
For flower gardens without light, trees do not expose much to the sun, tree life is reduced, productivity is poor
- Solution: It is recommended to use LED lamps with 2 fixed wavelengths such as Blue 460 nm and Red 660 nm
With these things, it will help families to be more secure in using lights in agriculture, creating conditions for plants to grow and achieve high yields.