Under-canopy LED grow lights are game-changers for indoor cultivation. Specialized under canopy LED  lights are installed beneath the plant canopy to illuminate lower leaves and buds that traditional overhead lights can’t reach. The addition of under canopy LED lighting to your grow operation will boost your yields while enhancing bud density and transforming small “B-buds” into premium flowers. This blog evaluates the top under canopy LED  grow lights from major brands by analyzing their prices and essential features to guide your purchase selection. The following comparison evaluates high-efficiency bars and complete under-canopy systems from GroPros, Grower’s  Choice, FloraFlex, California Lightworks, Iluminar, Faven, and Craft  Farmer.

To kick off, here’s a side-by-side summary of each under-canopy LED grow light’s core specs, features, and approximate pricing:

Table Key: UCL: Under Canopy Light. PPE: Photosynthetic Photon Efficacy (μmol/J). PPF: Photosynthetic Photon Flux (μmol/s). Pricing is approximate retail. Coverage areas are for the flowering phase.

GroPros Solutions provides their Under Canopy Light (UCL) in a 4-foot model to enhance growth in the lower canopy. The 4ft UCL includes two 4-foot LED  bars, which together provide 125 watts of power. The two bars create coverage of approximately 4 feet by 4 feet under the plant canopy. The bars produce full-spectrum light with deep red and  5% infrared spectrums to support plant vegetation while boosting flower production. The 125W bar generates  350 µmol/s of photons (PPF), which equals a 2.8  µmol/J efficacy similar to premium top lights.

The GroPros 4ft UCL includes an integrated driver that powers a thin and lightweight design, which enables simple hanging or mounting beneath plants. The product design allows multiple bars to connect to power and data through a single cord without needing additional controllers. Eight bars can operate from a single 120V circuit, but the number of connected bars increases when using commercial voltage.  DLC-listed and IP65-rated bars provide water resistance against misting and humidity while also qualifying for energy rebates. Growers have observed a 25-40% increase in lower bud yields through the implementation of these under-canopy lights.

The GroPros 4ft UCL exists only in multi-bar packaging without single-unit availability. A standard two-bar (125W ×2) package retails at $250, which breaks down to $125 for each bar. The affordable price point of this under-canopy lighting solution delivers strong value through its performance and construction quality.

The GroPros 8-foot Under Canopy Light provides expanded coverage as an alternative option. The  8ft UCL extends as a single LED bar reaching 8 feet (96”) to provide coverage of a 4’ x 8’ area beneath your canopy with one fixture. The  8ft model uses 250 watts to produce approximately 700 µmol/s PPF, which exceeds the  4ft model output by a factor of two. The 8ft version of the spectrum delivers a red-dominant full spectrum that includes deep red and IR wavelengths for optimal bloom results while maintaining the same high efficacy rate of 2.8 µmol/J as the 4ft model.  The lighting system delivers sufficient photons to all flower sites regardless of their position.

The 8ft UCL maintains the same durable design and IP65 rating as its compact version and allows daisy chaining up to four units on 120V power or eight units on  277V power. The bar maintains a thin profile through its built-in driver so it can be installed vertically or horizontally in limited spaces without requiring large external ballasts. GroPros offers different versions of the  8ft UCL with adjustable spectrum channels, including models that use UVA/Blue and Red/IR  control for customized light settings during different growth stages. The advanced models require higher prices but provide additional flexibility for master growers.

The standard single-channel 8ft UCL from GroPros retails at  $250 per fixture without stands, but prices may vary depending on whether you choose support stands or dual-channel spectrum upgrades. The cost becomes reasonable because a single 8ft bar functions as a replacement for two 4ft. bars. The DLC certification of these lights makes them eligible for energy rebates, which commercial growers can use to reduce their costs.

The Grower’s Choice “Under Canopy Light” represents a well-known under-canopy LED  product from the company. This is a 46-inch (about 4ft) bar drawing  120 watts, designed specifically to eliminate shaded lower growth and “B-buds” in dense canopies. The light generates the company’s GC-3.0 Red Spectrum, which features a bloom-promoting light recipe that emphasizes red wavelengths (3000K white with added red). The company selected this spectrum since research shows that deep red light enhances flower quality and density and yield in lower canopy areas.

The  Grower’s Choice UCL stands out because of its rugged design, which has an IP66 rating that allows easy cleaning and operation in spray environments. Installation is straightforward: The unit comes with an  8-foot combined power+data cord, which makes it plug-and-play and allows daisy-chaining multiple bars via RJ12 cables. You will not require additional drivers or bulky power boxes and your grow space will remain organized because there are no extra wires to clutter it. The 120-degree light spread of each bar provides complete coverage to all parts of your canopy underside.

The Grower’s Choice UCL serves as a solution to establish uniform growing conditions from the top to the bottom of your plants through balanced VPD and light distribution, which results in uniform buds. Growers who use this product to send intense red light upward through their canopy report complete elimination of popcorn buds and improved growth in lower flower regions. The precise  PPF measurement remains undisclosed to the public, but the estimated range lies between  2.5–2.8 µmol/J based on the 120W power consumption and high-output diodes.

The  Grower’s Choice Under Canopy LED costs $200 per bar at the manufacturer’s suggested retail price.  Grow shops sell this product at prices below MSRP, which ranges from $120 to $150, making it an affordable professional-grade option. Growers who want to implement under-canopy lighting will find this product affordable because of its durable design and effective spectrum.

Grower's Choice Under Canopy Third-Party Testing

Source: DLC (https://qpl.designlights.org/qpl/horticulture)

FloraFlex, a well-known irrigation product brand, has now launched high-performance under-canopy LED systems for lighting. There are two FloraFlex Under Canopy Light configurations: a 3-bar system with a total power of 360W for a 4’ x 4’ area and a 6-bar system with a total power of 720W for a 4’ x 8’ area. The bars are 120W each, so the setups are essentially three or six light bars mounted under the canopy. FloraFlex has one major advantage in terms of output and efficiency – these lights are among the most powerful in this category.

The FloraFlex 3-Bar (360W) unit has a measured PPF of 1,188 µmol/s and an efficacy of 3.3 µmol/J. The FloraFlex 6-Bar (720W), the big brother of the former, has half the former’s output at 2,376 µmol/s, the same 3.3 µmol/J efficiency. FloraFlex can flood the lower canopy with light as intense as some primary top lights because these numbers are significantly higher than typical under-canopy lights. The spectrum is a custom full-spectrum white combined with Osram deep-red diodes, with some far-red wavelengths. This blend is optimized to maximize photosynthesis under the canopy and enhance flowering and terpene production in those regions. FloraFlex built these to redefine under-canopy growth by making sure no part of the plant doesn’t get light.

Each bar in the array is passively cooled (no fans) and IP65-rated for greenhouse environments. They are fully dimmable from 100% down to ~14% (100 W) output, which is useful for gradually introducing the light to plants or tailoring intensity. The coverage is also a bit expandable: FloraFlex says the 6-bar can effectively cover up to a 4’ x 12’ area (though at a lower intensity at the extremes). The lights come with long 24-inch link cables between bars for flexible positioning, and the slim bars can be set at different heights or angles if needed to sneak light into every nook of the canopy.

Another highlight is durability and support: FloraFlex offers a 10-year warranty on these under-canopy LED systems, which speaks to their longevity (rated L90 > 50,000 hours). They are DLC-listed and ETL-certified, making them usable in commercial facilities that require certified fixtures. Growers using FloraFlex under-lighting have noted significant boosts in yield (reports of ~30% increases, similar to top-end systems) and better lower bud development, all while maintaining energy efficiency around 3.3 µmol/J – currently one of the highest PPE ratings in any grow light.

Pricing: FloraFlex under-canopy lights are premium products. The 3-bar 360W kit costs around $492 (approximately $500), while the 6-bar 720W kit costs about $886 at retail. This pricing is higher than simpler bar lights, but you’re getting multiple bars and top-tier performance. For serious growers who need maximum under-canopy illumination and are attracted by the efficiency and warranty, the output of the 6-bar (2376 µmol/s) makes the cost per photon quite competitive.

California Lightworks (CLW) follows its methodology when creating its MegaDrive UnderCanopy  LED system. CLW’s MegaDrive operates as a central power system that contains a large remote driver that powers multiple low-profile LED strip fixtures (bars) in parallel. The revolutionary approach eliminates driver components from the bars thus, the fixtures become lighter, and the canopy receives less heat. The system decreases installation expenses per fixture because a single Power Hub driver can operate multiple bars. The MegaDrive UnderCanopy bars reach 4 feet or more in length, with each bar measuring 52 inches while using 120W  of power to produce 350 µmol/s per bar. The optimized fixed spectrum of the LED bars provides deep red intensity for maximizing yields throughout the lower plant sections.

The performance output of a single  MegaDrive UnderCanopy bar reaches 2.6 µmol/J efficacy, which is lower than some standalone bars, but the system achieves scale to compensate. A MegaDrive power unit manufactured by CLW can power numerous under-canopy fixtures, but the exact number depends on the specific driver capacity, which usually reaches 10 kW units. CLW demonstrates that their system generates yield increases between  25–30% in trials together with increased A-grade bud production from shaded areas. The improved light penetration discovered by commercial growers enables them to reduce their labor requirements for extensive defoliation tasks under the canopy. The bars provide simple row-by-row installation because power centralization reduces both wall plug requirements and plant heat accumulation.

 The bars are designed to meet greenhouse standards by being fully waterproof and easy to clean by hose down while providing more than 100,000 hours (L90) of lifetime operation. The system supports  0-100% dimming and can integrate with light sensors or controllers for automated spectrum control in  CLW's larger MegaDrive ecosystem. The MegaDrive UnderCanopy system targets big facility growers who require a complete under-canopy solution. Hobbyists will find this product less user-friendly compared to other options, but industrial users will appreciate its under-canopy lighting solution.

The California Lightworks pricing system does not disclose a bar-specific MSRP because the MegaDrive UnderCanopy system includes all necessary components, such as drivers and connectors, which require customized solutions for each project. The company provides competitive pricing information through its launch promotion, which includes an energy rebate worth $79 for each fixture. The system price points to a  couple hundred dollars for each bar (before rebate) when acquired as part of the full system.  Growers interested in the exact price must reach out to CLW or authorized distributors to receive a custom quote. Commercial growers will benefit from the MegaDrive’s value proposition since the reduced driver requirements and straightforward installation alongside significant yield improvements produce a quick return on investment. The California Lightworks MegaDrive stands as the best choice for professional under canopy LED lighting in large commercial operations, while smaller growers may prefer single-bar solutions.

Iluminar Lighting brings forward an under canopy solution with the help of its 160W Under  Canopy Light. The fixture includes two 4-foot LED light bars running on a single power source that draws a total of 160W (80W per bar). The Iluminar team aimed to develop a high-efficiency additional light that would easily integrate with current growing systems. This fixture generated  2.8–3.0 µmol/J of efficacy, which puts it at the highest tier of efficiency together with Faven and FloraFlex. The 160W light set produces between  448–480 µmol/s of total PPF, which provides sufficient light for stimulating lower growth.

 Iluminar provides two distinct spectrum options within this under canopy light product: "R-Spectrum" with its red-rich model together with a Full Spectrum model. The R-spectrum version of the light directs its deep red and far-red spectrums to boost flowering efficiency while emitting red light through thick plant canopies. The Full Spectrum version of the product emits white light that provides balanced illumination for users who operate under lights in both veg and flowering stages. The hardware platform of both versions is identical while their spectrum differences stand as the only distinction between them. Growers must select between bloom enhancement or choose the red-heavy spectrum for flower rooms since they need to decide between these two options.

The Iluminar  160W UCL accepts 0–10V dimming signals, which allows it to connect to centralized control systems (it can work with Iluminar controllers or any 0- 10V system). The system includes extensive daisy chaining capabilities because it can handle 12 fixtures on 120V systems and  24 fixtures on 240V systems, and 28 fixtures on 277V systems, making it ideal for large, growing operations. The device has an IP65 rating that makes it suitable for use in wet conditions that frequently occur under canopies (drip runoff, sprays). The light kit includes optional stands and brackets, which help position the bars correctly under the canopy. The total length of each bar measures  45.3 inches, while its width measures 2.8 inches in a design that keeps clear of plant growth and movement areas.

The Iluminar Under Canopy 160W light sells for  $300 to $320 as a kit, which includes two 4ft bars with necessary power cords.  Iluminar displays the Full Spectrum model price at $309.00 on their website. The price point makes sense since you receive two bars with premium efficiency diodes. Growers typically view  Iluminar as an equivalent product to Grower's Choice or Faven bars because it provides comparable or superior performance despite drawing slightly more power and offering dual-bar coverage. The proven performance of Iluminar's under-canopy light and its ability to daisy-chain 28 bars makes it an excellent choice for reliable supplemental lighting under the canopy.

The Faven Lighting brand has emerged recently but their under-canopy LED bars have gained a strong reputation for their operational capability. The Faven Under-Canopy LED Grow Light Bar operates at  46 inches and 120W while delivering maximum efficiency and flexibility. Hydrobuilder reports the fixture reaches a peak PPE (efficacy) of 2.9 µmol/J while producing 340  µmol/s of PPF. The remarkable numbers place Faven among the most energy-efficient under canopy  LED grow light solutions on the market since it approaches FloraFlex's 3.3  µmol/J rating.

Faven offers spectrum options that maintain balanced color profiles. The company provides two spectrums that target vegetation growth and flowering development. The two variants contain sufficient red spectrum with a possible far-red spectrum for maximizing flowering response, while you can select a spectrum to enhance your primary light sources. The precise operation of Faven bars is demonstrated through their capability to link up with TrolMaster control systems for  25–100% dimming between lights. The ability to control under-canopy lighting through manual adjustments and scheduled operation provides growers with extensive management of their lower canopy environment.

Faven bars are built to withstand harsh conditions because they hold an IP66 rating, which signifies high resistance to water and dust. A single run allows users to connect up to 20 units without needing separate power cables for each light in their multi-light setup. A plug terminal exists at both ends of the bar for simple connections to adjacent units. These slim units (1.5” tall) can be easily positioned between rows of plants or suspended beneath trellis supports. The company stresses both durability and sustainability through their long lifespan (50,000+ hours) alongside their standard 5-year warranty and high efficiency, which reduces heat production and HVAC requirements.

Users who use Faven under-canopy lights have seen their plant yields grow by 20-25%, and their lower bud coloration improves. The outstanding performance of  Faven's light distribution and penetration stems from its lens angle together with spectrum selection in comparative tests. The  Faven lights deliver uniform plant coloration and development from the highest point to the lowest point. These  LED bars present a great middle-ground option between affordable prices and professional-level performance compared to FloraFlex arrays for under-canopy lighting.

The Faven 120W under-canopy bar costs approximately $189  per unit. Some vendors provide price discounts to customers who purchase multiple units at once. The construction alongside performance level makes this price point quite competitive. You may need to buy power cords together with mounting hardware when purchasing the system. Four Faven bars needed to illuminate a 4' x 8'  area would cost around $750 which equals the price of comparable products. The efficiency of Faven LED  grow lights makes them excellent investments for continuous operation across multiple growth cycles because they will save you money on electricity costs.

Source: DLC (https://qpl.designlights.org/qpl/horticulture)

Source: DLC (https://qpl.designlights.org/qpl/horticulture)

Under canopy lights of the Craft Farmer have earned a sort of cult following among medical growers. Developed by a grower named “Craft Farmer,” these 4-foot, 120W LED bars are often touted as a “game-changing” solution for maximizing yields down low. The Craft Farmer under-canopy LED is now in a V3 iteration and has been built with high-quality components – including  Osram and Samsung diodes – and a spectrum tuned through real-world testing by experienced cultivators. The spectrum is full spectrum white is augmented with deep red and far red, which helps to increase flowering and has some blue to keep the lower growth healthy. It is essentially designed to mimic natural sunlight penetration under the canopy, with a bit of a boost in the red and far red to encourage bud sites.

For output, the Craft Farmer V3 is rated at 336 µmol/s PPF with an efficacy of  2.8 µmol/J. This puts it right in line with top competitors (and likely, those numbers are measured at full power 120W). It is also IP66 waterproof for use under irrigation lines without any worries. One of the biggest selling points is the durability and warranty: Craft Farmer lights are built with an aluminum body and tempered glass top for protection, and they come with a  7-year warranty, one of the longest in the industry. This means that these lights are built to last for the long haul in commercial settings.

In terms of usability, each bar is auto-sensing for voltage (120–277V) and draws about 1 amp at 120V. Up to 8 bars can be daisy-chained on standard 120V or up to 18  bars on 277V using separate daisy chain cables. Craft Farmer also offers optional stands  (the “Make You a Believer” package includes stands), which allow the bars to free stand under plants –  useful if you don’t have a lower support to hang from. Growers who use these lights often put them on the floor or on short risers between plant rows and point them upward. They are slim and produce very little heat, so you can get them pretty close to plant pots or the floor without any issues.

Perhaps the strongest endorsement comes from growers themselves: many say that once they have tried these  under canopy LEDs, they “will not grow without them ever again.” The difference in lower bud development and yield was pronounced. These lights have been credited with increasing ROIs off the scale for some, essentially paying for themselves in one or two harvests due to the extra yield. The design of  Craft Farmer was truly born out of practical necessity, and it shows in the thoughtful features like quick daisy chain, easy installation, and spectrum balance for resin production.

Pricing: Craft Farmer under canopy lights cost around $229 per bar. They are commonly packaged two per case (approximately $460 per  2-pack). While a bit pricier per unit than some generic bars, you are investing in a field-tested product with a top-tier warranty and proven results. Many commercial growers buy them in bulk  (and Craft Farmer accommodates bulk orders with custom quotes). The majority of growers who adopt these lights find the cost well justified given the impact on yield and quality. For small-scale growers, the initial cost may be higher, but if you are aiming for craft-quality buds top to bottom, the Craft  Farmer LEDs live up to their name.

Source: DLC (https://qpl.designlights.org/qpl/horticulture)

The implementation of LED under canopy lights within your growing operation will produce better harvests by illuminating all bud sites. The different brands presented their distinct benefits through their products:

• GroPros UCL (4ft & 8ft) – The 4ft and 8ft GroPros UCL models provide excellent value together with strong construction along with documented yield increases ranging from 25-40%. The product range from GrowPros addresses both budget-conscious growers who need reliable under-canopy lighting and growers who require solutions for different canopy sizes.
• Grower’s Choice UCL – The Grower’s Choice UCL provides simple deployment alongside low costs for a commercial-grade light. Growers with a focus on flowering will find this product appealing due to its 3.0 red spectrum combined with IP66 durability when used alongside Grower’s Choice systems.
• FloraFlex Under Canopy – The Under Canopy series from FloraFlex provides top-level performance systems that deliver outstanding PPE (3.3 µmol/J) alongside comprehensive coverage. These lights are perfect for growers who need extensive light output under their plants since FloraFlex provides industry-leading results backed by a long warranty for those who want every possible gram.
• California Lightworks MegaDrive – The California Lightworks MegaDrive provides large operations with an adaptable under canopy LED lighting solution. Commercial growers who establish big installations will benefit from the centralized driver system which reduces setup expenses and operational maintenance while increasing production by 30%. The product stands as the top selection when scale efficiency outmatches plug-and-play accessibility.
• Iluminar 160W UCL – Iluminar 160W UCL provides users with a two-bar flexible kit that delivers high efficiency together with spectrum selection capabilities. Growers who seek an easy plug-and-play solution with spectrum selection capabilities will find this system suitable because it includes only two bars for sufficient coverage. You can choose or modify the spectrum by switching between full-spectrum for vegging and red spectrum for flowering. Iluminar brings its commercial lighting reliability to the market through its under-canopy product.
• Faven Under-Canopy Bar – Faven Under-Canopy Bar functions as the efficiency leader after FloraFlex while featuring modular deployment options. The Faven lighting system provides excellent energy efficiency and customization capabilities because growers can start with a couple of bars and expand their setup as their needs change. Advanced control systems integrate seamlessly with these lights because they appeal to users who prefer detailed adjustments.
• Craft Farmer UC Lights – The UC Lights by Craft Farmer represent lights developed by growers for growers who need both high performance and practical features. This product suits high-quality plant growers, particularly those focused on medicinal crops who want to provide complete light coverage to all cola regions of their plants. The combination of durable construction and a 7-year warranty makes these lights an economical long-term solution suitable for professional growers and dedicated hobbyists.

The selection of an appropriate under canopy LED grow light depends on your cultivation size along with your financial resources and desired level of involvement. The introduction of two 4ft bars from GroPros Grower’s Choice or Craft Farmer could serve as an appropriate starting point for smaller growing operations. FloraFlex 3-bar units work well in small rooms, while CLW MegaDrive systems function optimally in large-scale flowering bays. The supplemental lighting function of under-canopy systems operates in conjunction with standard overhead illumination. Synergy becomes the target when appropriate under-canopy LEDs are added to make the lower plant sections as valuable as the upper sections for yield and quality.

Every product in this comparison effectively transforms your undergrowth into a productive canopy. You can select your under-canopy LED purchase with assurance by comparing prices and features side by side to find the best model that matches your farming methods and objectives. Under-canopy LED lighting will help you obtain maximum yield from every branch while creating brighter buds throughout your entire indoor garden.