Have you been looking for the best 4×4 grow light in your market? Before buying, spend some of that valuable time doing research, and if confused about where to start then don’t worry because we have got this!

If you’re looking for the best 4×4 grow light of 2024, we’ve got your back. We rated 69725 reviews from top experts and these are our favorite picks on their list:

Bestseller No. 1

AC Infinity IONBOARD S44, LED Grow Light Board with Samsung LM301B Diodes, Deeper Penetration and Dimmable Full Spectrum Lighting, for Veg Bloom Indoor Plants in Grow Tents Greenhouses (4x4)

Dimmable LED grow light designed with an optimized spectrum and diode positioning, to maximize plant yields.
Specially formulated with full-spectrum Samsung LM301B white, red, and IR LEDs optimized for all grow stages.
Algorithmically positioned diodes create the most uniform PAR map and the deepest canopy penetration.
Dimmer enables 0 to 100% brightness. Can connect with our smart controllers to access grow cycles, scheduling, and app.
Constructed on a unibody aluminum board and IP-65 rated for grow environments with higher humidity and heat.

Bestseller No. 2

MARS HYDRO TSW2000 Led Grow Light 300 watt 4x4ft Coverage Full Spectrum Growing Lamps for Indoor Plants Dimmable Daisy Chain Seeding Veg Bloom Light for Hydroponics Indoor

2023 Upgraded TSW2000 LED Grow Lights: Experience the advantages of our new diode layout, densely packed in the center and sparse on the sides. This arrangement creates a more uniform light distribution between the center and sides, ensuring the most even PPFD distribution and maximizing plant yield. These meticulous design details make the TSW 2000 300W grow light ideal for any stage of plant growth in 3x3ft for flower and 4x4ft for veg.
Wider Range & Stronger Light: The 120° angle white reflector design on Mars Hydro TSW2000 led grow light is patented, allows for wider coverage and increased light intensity, aiding plants in better light absorption. Boasting an actual power of 300W, the TSW2000 delivers robust performance, while other model 2000 from other brands only delivers 200 watts or less.
Dimmable and Daisy Chain: With an independent dimming button on the external driver, this growing lamp allows you to adjust the brightness from 0 to 100% according to the specific growth stage of your plants. Additionally, it supports daisy chaining of up to 50 LED lights, seamlessly connected in a chain. The auto-sensing power supply is compatible with 120VAC, 240VAC, and 277VAC, making it suitable for both large-scale setups and personal settings.
Save Money and Energy: Mars Hydro's advanced SMD LED technology offers the highest PAR/LUMEN output while consuming only 300W with 704 LEDs, resulting in up to 50% energy savings compared to other grow lights for indoor plants, providing an additional 60% return compared to old HPS/MH lights.
Sunlike Full Spectrum LED: TSW2000 full spectrum growing light features 730-740nm Red IR/3200-4200Knm/5200-6800Knm spectra, providing the best light for all plant stages. Rapid plant response from seed to flower, and an increase in yield and crop quality‎. Over 90% light energy can be absorbed by plants.

Bestseller No. 3

Barrina BU2000 LED Grow Light, Full Spectrum with IR, 4x4FT Coverage, Dimmable, Adjustable Light Panel, 816 LEDs, High PPFD, Plant Grow Light for Indoor Plants Seedling Growing Flowering Fruiting

Adjustable Grow Light Panel: Barrina BU 2000 plant grow lamp can be adjusted the angle of the light panel to become a spotlight or floodlight. When the angle between the two panels is 60 degrees, the
816 LEDs Full Spectrum: Consists of 816 LEDs! Including blue light 5000k, warm white light 3000k, red light 660nm and IR 730nm. Especially the 660nm red and IR light is ideal for flower growing.
Lower Running Costs & Higher-quality Yields: Barrina plant growing lamps utilizes the latest in high yielding LEDs technology. The PPFD value in the central area can reach 1600, delivering powerful light output to result maximum higher yields.
UL Listed Driver & Dimmable: No Fan No Noise. UL-listed driver ensures the grow light more reliable, safer and with longer lifespan. The brightness can be adjusted by adjusting the dimming knob. Multi-light Connection with unified dimmingis especially beneficial for large area of indoor growing and commercial planting.
What You Get: 3 years of after-service of local maintenance center. 1 x Barrina indoor plant light 200W, 1 x Network cable, 2 x Hanging Chains, 2 x Steel Hooks, 2 x Screw, 1 x User Manual.

SaleBestseller No. 4

Spider Farmer SE5000 LED Grow Light 480W 4x4ft Coverage 1680 Pcs Samsung LM301B Diodes Enhanced Red Lights Full Spectrum Dimmable Daisy Chain Commercial Bar Style Growing Lamp for Indoor Plants

MAXIMUM UNIFORMITY & EFFICIENCY: The SE5000 grow light with unique designed 6 extended LED bars to provide more uniform canopy coverage, especially to the outer edges cultivation areas. With 1680 pcs SAMSUNG LM301B diodes, SE5000 Led grow lights draw 480 watts with 1333 umol/s, achieving an impressive PPE of 2.75 umol/J, coverage for 4x4ft of high-yielding full-cycle growth.
ADVANCED FULL SPECTRUM: The SE5000 grow light is a full spectrum LED grow light (2800-3200K,4800-5000K,650-665nm) with different wavelengths of light, perfect for every stage of plant growth, from seed to harvest.
DIMMING DAISY-CHAIN: Dimming knob allows to adjust the brightness of the light, 10-100% dimming to meet the needs of plant growth. Also daisy chain function supports growers to connect up to 60 lights for dimming at the same time. Highly recommended for use in grow rooms, home growing (4X4 grow tent), closet, DWC and hydroponics etc.
PASSIVELY COOLED & DETACHABLE DRIVER: Bar style grow light design and aluminium heat sinks on the back contribute to better airflow and great heat dissipation. SE5000 plant growing light comes with a detachable driver and long power cord 6.6 ft, thereby reducing ambient heat in your growing space for extended lifespan. With the waterproof coating on the diodes, worry free of the moist environment.
5-YEAR WARRANTY: High quality products and attentive after-sales service create the irreplaceable Spider Farmer LED grow lights. 5 years of after-sales service is provided for the SE series grow lights, and any problems within five years can be repaired at your local repair center (USA/Canada/UK/Germany). Please feel free to contact us about product problems and we will help you solve them.

SaleBestseller No. 5

SAMPHON Led Grow Lights, 4x4ft Coverage Full Spectrum Grow Light, Dimmable Daisy Chain 480W Hanging Plant Lights for Indoor PlantsGrowing,Grow Lamp for Indoor Plants Veg and Bloom

HIGH-EFFICIENCY LED GROW LIGHT-SAMPHON LED grow light with 1688Pcs SMD LEDs and 48pcs osram red diodes,high energy efficient drivers with a photon efficiency of 2.7 umol/J,the actual power is 480W, which provides sufficient light source for plant growth.It’s ideal for a 5x5ft vegetative area or 4x4ft flowering area.
FULL SPECTRUM LIGHT FOR ALL GROWTH PHASES-Consists of 660nm of red light, IR, 3000K and 5000K of the white light spectrum, provides plants in all stages from veg to flower with everything they need in the natural sunlight.SAMPHON LED grow light allows widely application in the home grows (grow box and grow tents), climate rooms,commercial growing (horizontal and vertical), greenhouse cultivation, vertical racks,hydroponics.
DIMMABLE DAISY CHAIN-The dimming knob is dimmable from 100% to 40% so you may easily adjust the light intensity of the light for the veg and flowering phases.It has a daisy chain function which allows you to connect up to 50 lights.You only need to operate one controller（not included） to dimming multiple lights simultaneously, this is a great convenience for large commercial growers.
GREAT HEAT DISSIPATION&SILENT FANLESS DESIGN-: All casings are heating sink which makes heat dissipates off the lamp. Designed for home growers, fans get noisy when long time use, bring you a FANLESS QUIET grow experience.
WHAT YOU GOT-480W Full Spectrum LED Grow Light,,Power Cord,Adapter,RJ Wire,Hanging Strings,Users Manual.3-Year Warranty,Contact us anytime with any questions.

Bestseller No. 6

VIPARSPECTRA 2023 KS5000 LED Grow Light 500W with Samsung LM301H Osram Diodes 6 Bars Grow Light, 4x4ft Coverage Full Spectrum Uniform PPFD Dimmable Daisy Chain Commercial Grow Lamp for Indoor Plants

LOWER OPERATION COST & MAXIMUM YIELDS：VIPARSPECTRA KS5000 LED grow light adopts the market-leading Samsung LM301H Diodes(3.10 μmol/J) & OSRAM 660nm Diodes, higher energy efficiency LEDs increase yield of crops and save operation cost. The top end components give the KS5000 an incredible performance. KS Series was designed for personal or commercial growers who want to optimize their grow space for the maximum crop yield while producing the highest quality crops.
FLEXIBLE DIMMING DAISY CHAIN: Dimming daisy chain feature is designed to connect up to 20pcs KS5000 grow lights for your commercial growing, horizontal, vertical farming, greenhouse planting pipeline cultivation, and hydroponics, etc. The dimmer allows you to dial in perfect PPFD for your plants at all stages of growth. For veg growth, we recommend 75% on the dimmer at a height of 26”. Finally, for flowering, we recommend 100% on the dimmer at a height of 13”.
OPTIMAL FULL-CYCLE SPECTRUM & EVEN PAR DISTRIBUTION: Consists of 3000K, 5000K and 660nm, which providing your plants with excellent spectrum, tailored for growing plants from germination, vegetative and flowering applications in indoor environments. KS5000 delivers the perfect PPFD for the best photosynthesis and growth, only consumes 500w perfect light for 4'x4′ coverage. Even intensity across your plants and larger than the competitive fixtures, which result in healthier, more balanced growth.
SUPERIOR HEAT DISSIPATION & EASY INSTALLATION: KS5000 features a detachable power supply that can be mounted remotely on the side of a rack or on an adjacent wall to remove heat from your grow space. Large areas of solid aluminum heat sinks help you to achieve the ideal cooling system. Plug-and-play mounting system allows you to easily use.
TRULY BEST BACK FOR THE BUCK: Plug and Play. Product quality and friendly customer service are always our top priority. We offer professional guidance, friendly customer service and US local after-sales service provides you with a pleasant shopping experience and helps your plants grow better.

Bestseller No. 7

Abriselux A1500 LED Grow Light Dimmable with 4x4ft Coverage and Upgraded Larger Board, Full Spectrum Grow Lamps for Indoor Hydroponic Growing Light with High PPFD (Actual Power 150W)

Upgraded Larger Coverage：The Abriselux' 1500 series is upgraded to 19.6"x 12.6" large size board and a large number of LED are the features this item, It is 50% larger than other brands 1500 series, which can magnificently improve the light coverage and your planting efficiency. The larger aluminum board helps to dissipate heat, keep the working temperature under 55°C, and to ensure the stability of quality.
FLEXIBLE DIMMIER 0%-100%：Useful for times when you don't need much light as in the case for vegetation, An added dimmer knob is featured to manipulate the light intensity at liberty, provides desired needs for plants in all stages from veg to bloom. Saving your money in return. Turn it up to 100% when it is time to harvest. Save electricity while obtaining perfect growth performance for each growing phase.
LOWER RUNNING COSTS & HIGHER-QUALITY YIELDS：Adopts the latest high-quality LEDs, high energy efficiency with 2.6 umol/J, delivers a powerful light output and uniform canopy penetration to resulting maximum higher yields, Comparable to traditional 300W-450W HPS/MH while consuming only 150W! We recommend setting the brightness at 40%-60% for Germination and Seedling stages and 80%-100% for vegetative and flowering stages.
OPTIMAL FULL SPECTRUM：A combination of SMD diodes in a multi-spectrum layout gives this LED light a complete natural Full White Spectrum that your plants will love in all stages of growth. Consists of 3000K warm white, 5000K white, 660nm deep red, and 730nm IR light, which providing your plants with excellent full spectrum led grow lights. The red and IR light is particularly useful during bloom, which can speed up bloom time and enhance high yields to obtain the ideal harvest.
100% MONEY BACK GUARANTEE：36 Months worry-free warranty and 30-day money-back guarantee, Even if your products have exceeded the warranty period, we would continue to offer lifetime support so please don't hesitate to contact us whenever you encounter any issue with the grow lights. Enjoy this RISK-FREE purchase by clicking the yellow Add to Cart button.

SaleBestseller No. 8

BLOOM PLUS LED Grow Light BP 3000W 4X4ft Coverage LED Grow Light Use with 1174packs Samsung Diodes(Includes IR) Dimmable Sunlike Full Spectrum Grow Lights for Indoor Plants Veg and Flower

LOWER COSTS & HIGHER-QUALITY YIELDS---Using the Newest high-yield LED technology-1174 pcs Samsung 2835 diodes. So BP3000 LED Grow Lights achieves a high energy efficiency of 2.7 umol/J and improves the light transmittance. The LED Growing Light consumes only 300W of power, which is 50% less than the operating power of other 600W HID/Blurple/HPS lamps, while help gets 50% higher yield harvest. The maximum output is 2.5g/w. Veg Coverage: 5 x 5 ft, Flower: 4 x 4 ft.
OPTIMAL FULL-SPECTRUM LIGHTING---The Full Spectrum led grow lamp can provide everything the plants need under light at all stages. The powerful blue light makes the plants grow faster, and IR light is particularly useful during flowering, it can accelerate bloom time and increase yield, fill the flowers with space and obtain an amazing harvest. This can not only reduce buds but also increase yield while saving energy and costs.
WORKING SILENTLY & RELIABLY---A fanless design is used to provide you with a silent growth life. Using high-quality Samsung LED chips and reliable drivers, the light is also made of the LED board is passively cooled by a large-area thick aluminum heat sink. The fast-dissipating aluminum material reduces the light lost in walkways and walls, increasing the light intensity by 20%, allowing your plants to get more energy without burning the plants for maximum space.
UNIQUE DESIGN---Plant Grow Lights have a dimmable driver on the back, you can remove the rubber plug and adjust it with a 3mm Phillips screwdriver (adjustment range: 1.5-3.0A). Designed for indoor growers, the BP3000 full spectrum LED grow lights aim to help individual indoor growers and greenhouse growers to obtain higher yield and better quality within the budget.
100% SATISFACTION GUARANTEED---The Bloom Plus LED series offers a 30-day money-back guarantee and a trusted 3 years warranty. Professional U.S. local after-sales service provides you with the most convenient shopping experience. If any questions, please feel free to contact us with email.

Bestseller No. 9

MARS HYDRO FC-E4800 Smart LED Grow Light 4x4ft Full Spectrum Grow Light Bar with 2646pcs Diodes 480Watt Plant Growing Light Remote Control Dimmable Commercial Grow Lamp Daisy Chain, Achieve 2.8 umol/J

PROFESSIONAL SMART GROW SYSTEM:MARS HYDRO FC-E4800 Smart grow light with 2646pcs BridgeLux Diodes, market-leading 2.8 µmol/J PPE,Max 2.5g yield/watt, 480 Watt with smaller footprint for better crop quality, more cost-effective. 4x4ft for personal grow, 3x3ft for commercial grow.
REMOTE CONTROL AND OTA DATA TRABSFER:Built-in removable bars interval & dimmability enable the exact dynamic PPFD control over each of plant growing stages, Mobile access to the LED grow lights on Mars Hydro APP via WIFI. All data and settings are stored and transferred by OTA technology. Easily control the grow lights and schedule your grow plans with your fingertips on your cellphone screen whenever and wherever you are.
DIMMABLE COMMERCIAL SMART GROW LIGHT:Easy dimming & daisy chain max up to 20 lights, Switching and dimming of multiple FC-E 4800 plant lights without additional cables. perfectly suit full-cycle hydroponic, soil, grow tent/room growing. the APP can divide the LED grow lights into different lighting groups to enable independent management and make it convenient to monitor and program various ongoing cultivations without interfering with each other’s plans.
PRECISE CONFIGURATION AND AUTO-DIMMING:The Smart Bar Style Grow light intensity can be accurate to year/month/day/hour/minute for dynamic light levels that match your grow schedules. Dimming programs run automatically after configuration to serve full growth from seed to harvest.
SUPERIOR HEAT DISSIPATION FULL SPECTRUM GROW LIGHT:Removable light bar ,Snap-in type, easy installation by snap locking the two ends together just need 30 Seconds.Detachable power supply can be mounted remotely on the side of a grow tent/rack or on adjacent wall to remove heat from grow space With Yield Max spectrum (660nm Osram enhanced Deep Red,2800-3000K,4800-5000K have different wavelengths of light), innovative design Smart LED grow lamp is designed for commercial & home horticulture.

Bestseller No. 10

BLOOM PLUS Latest XP3000 LED Grow Light with Samsung LM301B Diodes 4x4 ft Coverage Dimmable Full Spectrum 300W Grow Light for Indoor Plants Veg and Bloom Hydroponic Growing Lamps with 652pcs LEDs

TOP PERFORMANCE & HIGH EFFICACY: Bloom Plus upgraded XP3000 LED growing light use the latest high-efficiency (2.7 umol/J) LED plant light technology - Samsung LM301B Diodes for extremely high output, increase the yield of crops and save operation cost, generates more usable lighting per watt, and provides better light canopy penetration.
LESS ENERGY CONSUMPTION: Comparable to traditional 600W HPS/MH, XP3000 Plant Grow Lamp consumes only 300Watt with 652 pcs LEDs! Get 50% higher yield harvest and save costs. Perfect for core coverage 4x4 ft. Adjust the height and brightness properly to meet your plants desired level for optimal growth.
ADVANCED FULL SPECTURM & DIMMABLE KNOB: Delivering optimal light-spectrum coverage - 650-665nm Red Lights ,2800-3200K warm lights, 4800-5000K white lights ,730-740nm IR lights, best for all stages growing from seed to flower, increase yield & crop quality‎. XP3000 LED indoor growing lamp has a dimming knob that makes it adjustable to different growing periods for your plants; It can adapt to the growth needs of different plants in different periods.
SILENT OPERATION & SOLID CONSTRUCTION: Fanless LED grow design will make your growing life quiet. Large areas of solid aluminum heat sinks help you to achieve the ideal cooling system. Adopts high performance power supply driver to achieve high PAR output, longer lifespan to speed up plant's grow processes and boost yields while saving you on your energy bill.
100% SATISFACTION GUARANTEED---The Bloom Plus LED Grow Lights offers a 30-day money-back guarantee and a trusted 3 years warranty. Professional U.S. local after-sales service provides you with the most convenient shopping experience. Make sure you purchase authentic Bloom Plus grow lights. If any questions, please feel free to contact us by email.

Table of Contents

Take These Factors Into Consideration Before Purchasing Your 4X4 Grow Light

It’s a well-known fact that before making any purchase, we like to gather as much information about it from others who have already purchased or used the product. This is because word of mouth recommendations tend to be more accurate than those given by just one person and can give you an idea on whether something will work for your needs too!

So, you’re wondering if the 4×4 grow light is worth buying? Well don’t worry; there are plenty of online platforms where this product can be purchased. Just open your browser and type in 4×4 grow light followed by any keywords related to what it’s for- we found some great ones that will suit all needs!

While reviews are a great place to start, you should also consider other factors when researching your potential purchase. You should also get the answers to few questions first:

How much are you willing to pay for 4×4 grow light?
Will the 4×4 grow light be worth buying?
Which are the 4×4 grow light available in the market?
What are the things you need to check before buying the 4×4 grow light?
What will be the way or medium (online or physical store) for buying the 4×4 grow light?
What are the advantages of purchasing the 4×4 grow light?

The more information that is available, the better! That’s why we recommend gathering as much knowledge about this subject by looking into other products or researching online so your purchase goes smoothly and without any fuss later on down the road.

How To Select The 4X4 Grow Light

Picking out the perfect 4×4 grow light can be difficult for beginners, but we’re here to help! Consider these factors when choosing your product:

Price

Brand

Function

Customer Reviews

It’s always good to have an idea about the product before you buy it.

Advantages Of Buying 4X4 Grow Light From Online Platforms

Online shopping is easier than ever before now with websites like Amazon which offer quick delivery times for your purchases. If this sounds good to you then read on! We’ll go over some reasons why people buy things online as well as what benefits they enjoy from doing so – along with examples too.

Getting the Best Deals

When you buy from the comfort of your own home, there are many benefits that come along with it. You can save money on shipping fees by ordering online and avoiding any unnecessary taxes too.

Getting a Wide Range of Selection

With a click of your mouse, you can find anything from the latest fashion trends to that hard-to-find item no one else seems to have.

Saving Time

You can order anything anytime without waiting in lines or asking for help from shop assistants and save both time and physical hardships! Plus no more carrying heavy bags all over town – you just enter your shipping info once at home and then wait for it to show up on your doorstep (or desk).

FAQs about Best 4X4 Grow Light

Which 4X4 Grow Light Quality is the Best?

There is no definitive answer when it comes to quality, as it can vary depending on your needs and preferences. However, some products are known for being more durable and long-lasting than others. So if you’re looking for a high-quality option that will last for years, you may want to consider investing in a product that is built to last.

How To Preserve And Prolong The Life Of The 4X4 Grow Light?

There are a few things you can do to help preserve and prolong the life of your 4×4 grow light. First, make sure to keep it in a cool, dry place when not in use. You can also clean it on occasion. If it starts to show any signs of wear and tear, you can replace the coverings or parts as needed. Finally, avoid exposing it to direct sunlight or extreme temperatures, as this can damage the product. By following these simple tips, you can help keep your product in good condition for years to come.

Why Warranties are Important to E-commerce Customers?

When it comes to choosing a 4×4 grow light, customer service and warranty can be important factors to consider. If something goes wrong with your product, you’ll want to be able to easily get in touch with customer service and have the issue resolved. And if the product has a warranty, you’ll be able to get it repaired or replaced at no cost to you if something does happen to go wrong. So if customer service and warranty are important to you, be sure to look for a product that offers both.

Best Time to Buy 4X4 Grow Light on E-commerce Marketplace?

The best time to buy is typical during the holidays when retailers offer various discounts and deals. However, you can also find good deals throughout the year, so be sure to check regularly for updates. You can also sign up for a membership account, which gives you access to exclusive deals and free shipping on many items. So if you’re looking for the best possible deal, be sure to keep an eye out for sales and specials.

Bottom Line

We all know how expensive it is to buy things, so before you go out and spend your hard-earned money on anything make sure that there’s a need for such an acquisition. It may seem like common sense but we often don’t realize what value our items have until they’re gone–reviewing whether or not this purchase will really serve any purpose can help save unnecessary expense in future purchases.

A couple of messages from our team:

Your search for the best 4×4 grow light ends here. We make use of Big Data and AI data to compile this list so it is highly accurate!
We spent hours reading reviews and looking at what buyers think about each product so that your buying experience will be satisfying!
Visit our site now and take advantage of all the benefits we have in store for you!

Top 20 Best 4X4 Grow Light Test, Reviews & Comparison