So, when choosing a 400W grow light for your indoor cannabis garden, you have settled upon using an LED grow light. Generally, LEDs are very powerful, with the ability to produce excellent yields when used in the right way. A 400 Watt LED grow light unit can provide a footprint coverage of about 3ft by 3ft.
The range may be different depending on the growth phase. You have the option of increasing the coverage area by using more than one grow light. We have identified four of the best 400W grow lights that you can use in your cannabis garden.
See also:
- Best Led Grow Lights
- Best CFL Grow Lights
- 1000 Watt Led Grow Lights
- UFO LED Grow Lights
- 600 Watt HPS Grow Lights
- Tomato Grow Lights
- Grow Lights For Houseplants
- Led Grow Light Bulbs
- 150W LED Grow Lights
- COB LED Grow Light
- Indoor Greenhouse Grow Lights
- Best T5 Grow Lights
- 300W LED grow Lights
- Best Led Grow Lights For Succulents
- 100W Led Grow Lights
- Best HPS Grow Lights
- 4ft Led Grow Light
- Plasma Grow Lights
- Best CMH Grow Lights
- HID Grow Lights
- 200 Watt LED Grow Light
- 250W LED Grow Light
- Cheap LED Grow Lights
- Bonsai Grow Light
- 500 Watt LED Grow Light
- T8 Led Grow Lights
- Solar Powered Grow Lights
Table of Contents
Our Top Picks Best 400W LED Grow Lights
ECRU LED Grow Light Twin Panel – 400W Equivalent Growing Lamp
Grow lamp that you should highly consider when choosing an LED lamp for your indoor farm is the ECRU LED Grow Light Twin Panel 400W Equivalent Growing Lamp. It is highly efficient due to its superior LED chips.
The chips have diodes that are larger and brighter than that of the standard LED chip. The PAR and lumen value of the grow light is, therefore, 20 percent more than that of regular LEDs. The light can readily replace a traditional 150Watt HPS/MH lamp while using a power of only 27 watts.
It, therefore, helps you save plenty of energy. The light panel contains 48 LEDs that consist of red, blue, and magenta lights. The LEDs produce a sun-like spectrum that is perfect for use throughout all the growth stages of your plants. The light spectrum contains cool white, red, blue, and UV lights.
The lights help your plants grow and develop through the seedling, vegetative, flowering, and harvesting stage. It removes the need for switching the grow light through the different stages. They are especially beneficial when growing your clones without the need of changing lights.
The lamp has an arm that can rotate to 180 degrees. After you install the lamp above your plants, you can turn it to a manner that can give your plants adequate light.
Pros
- The grow light is lightweight and very easy to install as it comes with various installation methods and a guide to help you set it up.
- You can use the light throughout all the stages of growth without the need to change it
- It provides a full spectrum light with a warm and cool white light that closely resembles the sun
- It has two LED panels that provide a greater light coverage for your plants
- It is highly efficient and energy saving
- The light ensures that your harvest is of high yields
- You can use it to grow various types of plants
- It has a flexible arm that allows you to install the light in different positions
Cons
- The grow light is too bright to look at with bare eyes.
California Light Works SolarXtreme 400 LED Grow Light Fixture
One of the top quality LED lights you can use in your grow farm are those that use COB chips. And one that will never fail you is the California Light Works SolarXtreme 500 LED Grow Light Fixture. It should be the first choice for any cannabis grower that only wants to get the best yields without messing around.
The grow light contains 8 COBs, each using 50 watts to produce a full spectrum light. It emits an intense white light that is effective for use in all the growth stages of your cannabis plants.
The grow light provides you with coverage of 5ft by 5ft during the vegetative period and 4ft by 4ft during the flowering phase. The grow light features two huge fans and a large heat sink that helps to reduce the heat produced by the COB LEDs.
Pros
- The lamp produces a full spectrum light that facilitates the growth of your plants through all the stages of growth
- It is energy efficient and at a lower cost than that from regular LED grow lights.
- The grow light can provide coverage of 4ft by 4ft.
- The lamp is easy to install and start using.
- The grow lamp comes with a one year warranty
Cons
- The grow light produces a lot of heat, necessitating you to have an effective ventilation system in your grow tent.
MARS HYDRO 400W LED Grow Light; Full Spectrum Grow Lamp
Everyone wants to get the best results from their cannabis plants, a bountiful harvest. To achieve it, you need to provide your plants with a top-quality light spectrum. Few grow lights can compete with the MARS HYDRO 400W LED Grow Light when it comes to producing a high quality light.
The lamp gives a red and blue spectrum light that is of top quality at a low operating cost. It makes use of Epistar chips together with its improved reflector cup design to provide a 100 percent output. The chips have a parallel connection that ensures the failure of one chip does not affect the whole light.
The light penetrates deep into your plant’s canopy. The lamp produces a similar output to a 250-watt HPS/MH grow lamp providing coverage of 3.5 ft by 3.5 ft during the vegetative stage and 2ft by 2 ft for the flowering phase. It comes with aluminum heat sinks and two fans that help to reduce the excess heat produced by the light.
Pros
- The grow light provides your plants with a full spectrum light
- The lamp has a long lifespan of 50,000 hours
- It comes with a veg and flowering switch to help switch the light according to the growing phase
- It has an inbuilt cooling system that helps to reduce the heat production
Cons
- The light is too bright for the eyes.
Hipargero 400W COB LED Grow Lights Fixture Full Spectrum
LED lights are one of the costly grow lights you can purchase today. However, the Hipargero 400W COB LED Grow Lights Fixture is one of the cost-effective lights providing top quality light for your plants.
The grow light produces a full spectrum light ranging from 380nm to 730nm consisting of red and blue LEDs. The lamp uses top quality Osram LEDs and High Power Epileds COBs that do not burn out like other LEDs that do not last for long. The grow light can readily replace a 300-watt HPS/MH grow light when using a power of only 120 watts.
The lamp can provide your plants with a covering of 2ft by 2 ft when you place it 18 inches above the plants. When you have a small indoors garden, two of this light fixture are enough to provide your plants with the right amount of light to grow effectively.
It has an inbuilt cooling system consisting of powerful high-speed fans and a built-in aluminum heat sink. It also has an aircraft-grade iron shell that helps transfer heat from the LEDs to the outside of the lamp. By doing so, it helps to extend the service of the grow light by a few more months. You cannot use this lamp outdoors or in a humid environment since it is not waterproof. It comes with a one year warranty as well as a 30-day money-back guarantee.
Pros
- The lamp provides a full spectrum light to your plants with a higher PPFD than other grow lights.
- It is energy-saving and more effective than other similar grow lights.
- It provides coverage that is better than that of a reflector series
- The grow light has a powerful cooling system that helps to get rid of heat and extend the life of the LED bulbs.
- You can use it through all the growth stages without switching it out with another light
- It has a long lifespan of about 50,000 hours
- The lamp is simple to install and use
Cons
- The grow light is not waterproof
- It is incredibly bright and may burn your eyes when you look at it directly
Summing up
One of the factors that you need to consider when choosing a grow light to use should be the wattage of the unit. Your grow light wattage will determine the size of your coverage area and how the light will affect the various cannabis grow stages.
A 400w grow light is highly efficient and does not consume a lot of power. It provides a sizeable coverage that you can increase by using more than one grow light in your grow tent. When growing cannabis, you need to get a lamp that will provide you with a full spectrum light.
It reduces the need for using more than one light in your grow room, saving you unnecessary costs. The light as well needs to be the right spectrum for each growth stage if you want to get the best yields.
Without meeting the precise requirements for your cannabis farm, you are setting up your plants to experience failure. We hope that the above 400W LED grow lights will make your job of choosing the right grow lamp for your farm.
- 【Energy efficient 】: 60w actual power replace 400W HPS or HID grow light with only 60W consumption, saving your electric bill,Real working environment test, wet environment, it can work normally even in a water tank, improving the safety factor
- 【Dimming function】: Contains three lighting modes: red + warm white, purple + white, red + purple + white + warm white, Providing the most suitable and most needed light for each growth stage of the plant.
- 【Cycle timing switch design】: The plant light has a cycle timing function4h/8h/12h. 4 kinds of brightness adjustment, adjust the full spectrum grow light brightness according to your plant needs.
- 【Indoor grow light】: Engilen full spectrum led grow light, It emits all the wavelengths from 380nm to 800nm- just like natural sunlight. The plant lamp emits growth light through the lamp bead chip, which completely imitates natural light, include 60 warm white LED、60 white LED、20 red LED、4 purple LED.
- 【Widely Used and easy install】：Widely apply to family balcony seeding/breeding, gardening, flowering, potted plants, grow tent,outdoor garden especially tall and large plants.The lamp was rather straightforward to put together, it has a handle as well as metal hanging threads that connect to a clip, allowing it to be hung almost anyplace with relative ease.
- 【Lower Running Costs & Higher PPFD】Actual power only 400 watts, High PPFD, up to 1784 ¦Ìmol/m2.s. Comparable to a traditional 900W HPS or CMH light. Save up to 60% on your electricity bill. Using 1323pcs of the latest high quality LED technology - smd + diodes, to provide high PAR output, longer lifetime and better light canopy penetration. SPF4000 grow light perfect for 5x5ft vegetable stage, 4x4ft bloom stage.
- 【VEG & Double BLOOM Switch】Aaccording to the growth and yield of plants, SONLIPO designed 3 switches, VEG, BLOOM and enhance BLOOM, to facilitate the control of red and blue light spectrum, to make the roots and stalks of plants grow thicker, and prevent them from growing taller in vain. Enhance RED light, can greatly increases the size and number of flowers to maximize the yield of the plant, maximum 2.9 g/w.
- 【Full Spectrum Grow Light】Infinitely close to natural sunlight, consists of 660nm Red light, IR 740nm, and 3000K, 4000K, 5000K, 6000K light spectrum. IR is dimmer than other red diodes. 3000K providing more reddish light and the 6000K providing more blueish. The 660nm red and IR light is especially useful during bloom, where it speeds up flowering time and boost yields. Uniformly across the surface and deep into the roots and bottom of canopy for consistent, highest quality flowers.
- 【Well Made, Excellent Heat Dissipation】Solid structure, No Fan Noise Free. The housing is made of aviation heat sink aluminum, thick and strong, and provides excellent heat dissipation. Cable has protective cover, user-friendly packaging. Built-in short-circuit protection device automatically protects your lights from damage, you can easily save money without purchasing lights frequently.
- 【100% Warranty & Easy to use】Plug and Play, One-touch switch sets the light spectrum for your plant to suit it. Product quality and friendly customer service are always our primary objectives. We offer a 90-day new replacement or full refund, 12 months free warranty, and professional guidance to help your horticultural grow and grow craft better.
- 400W Digital Dimmable Electronic Ballast: Support 120V/240V Input; Dimmable Options: 50%, 75%, 100%; 8 Feet heavy-duty power cord included; Stable power output ensure flicker free light
- 1 x 400W Super HPS bulb 2100K; 1 x 400W MH bulb 6000K; optimized Spectrum and high PAR (photosynthetic active radiation) to promote healthy plant growth and soonest flourish
- 1 x pair of 8-ft adjustable ratchet clip hanger rope: hold up to 150 lbs
- 19-inch Wing Reflector: up to 4' x 4' light coverage; Built-in 15 feet heavy duty lamp cord with E39 Ceramic Mogul Socket and standard Hydroponic S-Plug; highly 95% reflective textured German aluminum maximizes the light reflected to the plants
- This system will generate too much heat to be used in an enclosed area without ventilation. Adequate ventilation is required for all iPower grow light systems. We recommend the use of an iPower inline fan
- 【One Panel to Rule The All】 Mixed 3000K, 5000K, 660nm Red, and final spectrum is 3500K which is perfect for full-cycle growth. Plus special IR & UV to stimulate growth. Better diodes arrangement offer the more evenly output, Work as Well as bar Light. Let every leaf get enough light, Can increase the yield by 20%.
- 【High-Efficiency & Reliable Plant Growing Lamp】 consume 400watts. Equal to 700Watts blurple light or HPS. Using 100,000 hours long lifespan OSRAM diodes. CRI up to 90, 10 times higher than blurple light, 30% higher than cheap SMD LED. Easier to observe the health of plants.
- 【Flexible & Thoughtful Design】 Removable driver total is 13FT(4M) length, you can put the driver outside your tent to keep the ambient temperature cool in summer, or keep inside keep warm in winter. Ultra-thin yet strong load-bearing capacity, you can set an inline fan on it, make more space for your plants to grow
- 【Professional after-sales team】Worry-free 12-month warranty, Repair center in the USA. You also could message us via Amazon message or ask a question via the "have a question" part. We will reply in time. Have connections with a large number of experienced growers On social media, always could provide you professional solutions.
- 【Tips for Coverage & Hanging】 For tomato, herb, or pepper in veg, at 30''-34'' in 5x5FT; For flowering, at 24''-26'' in 4x4FT. For 3x3FT room in high levels of CO₂, please set it at 22''-24''. That would level up the yield.
- 【Powerful 2-Head Grow Light】With 192 pcs premium LED chips, output Eqv. 400W, 3 adjustable 360-degree rotatable plant light goosenecks, 120° beam, this plant grow light provides plants with a wider irradiation area to enhance plant growth. You can freely control the direction of the lights
- 【Large Panel Design】The size of each panel is 8*3.7 inches, and it also has a 7.6 inch 360° rotatable gooseneck. Covering four times the area of other LED grow tubes on the market, this grow light not only provides plants with more even light (360° illumination), but also a larger illuminated area. These grow lights are perfect for all stages of plant growth, from germination, flowering to fruiting
- 【Full Spectrum Plant Light】This indoor grow light consist of 4 colors of red, blue, white and yellow lamp beads (240 in total), the full spectrum effect is achieved by simulating sunlight to meet the growth needs of plants. Widely used in home balcony sowing, breeding, gardening, flower show, potted plants, especially tall and large plants
- 【Grow Light with Adjustable Stand】Equipped with a stable and durable tripod, adjustable from 1.37-3.77 ft. Compared with clip grow light and hanging grow light, our light stand is flexible to adjust according to your different needs, provide a much wider coverage for indoor plants
- 【Reliable Service】We are a professional LED grow lights manufacturer with advanced R&D and sales departments If you have any questions, please feel free to contact us, we will reply you within 24 hours
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