When selecting an led grow light with far red supplemental, growers face the challenge of balancing light spectrum, coverage, and efficiency. The best models integrate deep red and far red LEDs to promote flowering and flowering response, but tradeoffs exist between price, coverage, and complexity. The Spider Farmer SUPP-UV60 & IR30 stands out as the best overall for its versatile spectrum and build quality, while the Mars Hydro ADlite UV55 & IR30 offers excellent coverage at a competitive price. However, higher-end options like the Spider Farmer GlowR40 deliver premium performance with advanced spectrum control. Continue reading for a detailed breakdown of these options and what makes each one unique.
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Key Takeaways
- The best models balance full-spectrum lighting with deep red and far red LEDs for optimal flowering results.
- Coverage area and light intensity are key tradeoffs, with larger fixtures providing more coverage at higher costs.
- Build quality and spectrum control features often justify premium prices for serious growers.
- Budget options tend to compromise on spectrum sophistication or coverage, making them better suited for small-scale or beginner growers.
- Far red supplemental lighting is most effective when paired with a well-designed full-spectrum grow light, not as a standalone.
| Spider Farmer SUPP-UV60 & IR30 LED Grow Light Bars Set 35.4″ (4-Bar) |  | Best Overall for Versatile UV/IR Enhancement | Length: 35.4 inches | Number of Light Sources: 4 | Wattage: 500 watts | VIEW ON AMAZON | See Our Full Breakdown |
| Mars Hydro ADlite UV30 & IR15 LED Grow Light for Indoor Plants |  | Best for Small-Scale or Budget-Conscious Growers | Coverage Area: 3×3 ft | Light Bars: Far Red IR, UV | Compatibility: FCE4800, FC4800, other main lights under 500W | VIEW ON AMAZON | See Our Full Breakdown |
| Spider Farmer SUPP-UV30 & IR16 LED Grow Light Bars Set 23.6″ (4-Bar) |  | Best for Precise Spectrum and Smart Control Integration | Length: 23.6 inches | Number of Bars: 4 | UV Spectrum: 365-370nm | VIEW ON AMAZON | See Our Full Breakdown |
| Mars Hydro ADlite UV55 & IR30 LED Grow Light for Indoor Plants, 4x4ft Coverage |  | Best for Large Area or Commercial Growers | Coverage Area: 4×4 ft | Light Type: LED | Includes: UV55 & IR30 far red light bars | VIEW ON AMAZON | See Our Full Breakdown |
| Spider Farmer SUPP-R30 660nm Deep Red Supplemental Light Bars 23.6″ |  | Best for Flowering Optimization in Small to Medium Tents | Wavelength: 660nm | Number of LEDs: 88 | Length: 23.6 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Spider Farmer GlowR40 LED Plant Grow Light, 2ft Deep Red Supplemental Lighting Bar, 650-665NM for Indoor Plants |  | Best for Targeted Deep Red Flowering Boost | Wattage: 40W | Wavelength: 650-665nm | Length: 2ft | VIEW ON AMAZON | See Our Full Breakdown |
| Spider Farmer SUPP-R60 660nm Deep Red Supplemental Light Bars, 35.4 inches |  | Best for Supplemental Deep Red in Medium Spaces | Length: 35.4 inches | LED Diodes: 176 pcs | Wattage: 60 watts | VIEW ON AMAZON | See Our Full Breakdown |
| VIVOSUN LumaRay LED Grow Light Bars 16” (8-Bar) Full Spectrum Side Lighting |  | Best for Complete Spectrum with Red Enhancement | Length: 16 inches | Number of Bars: 8 | Spectrum: Full spectrum with 60% red | VIEW ON AMAZON | See Our Full Breakdown |
| led grow light with far red supplemental | Length |
|---|---|
| Spider Farmer SUPP-UV60 & IR30 | 35.4 inches |
| Mars Hydro ADlite UV30 & IR15 | — |
| Spider Farmer SUPP-UV30 & IR16 | 23.6 inches |
| Mars Hydro ADlite UV55 & IR30 | — |
| Spider Farmer SUPP-R30 660nm D | 23.6 inches |
| Spider Farmer GlowR40 LED Plan | 2ft |
| Spider Farmer SUPP-R60 660nm D | 35.4 inches |
| VIVOSUN LumaRay LED Grow Light | 16 inches |
More Details on Our Top Picks
Spider Farmer SUPP-UV60 & IR30 LED Grow Light Bars Set 35.4″ (4-Bar)
This 35.4-inch set stands out for its high-density diodes and durable construction, making it ideal for growers seeking a reliable, long-lasting UV and IR supplement. Compared to the smaller Spider Farmer SUPP-UV30 & IR16, it offers more coverage and higher output, but at a higher wattage and cost. The aluminum and copper build ensures longevity, while the 50,000-hour lifespan minimizes replacement needs. The main tradeoff is the lack of waterproofing and limited spectrum control, which might concern growers working in humid environments or seeking fine-tuned spectrum adjustments. Overall, this set suits serious growers who want robust, high-intensity supplemental lighting across larger grow areas without complex controls or environmental considerations.
Pros:- High-density LED array boosts plant growth and yields
- Durable aluminum and copper construction for longevity
- Long 50,000-hour lifespan reduces replacement costs
Cons:- No waterproof rating, unsuitable for humid or wet environments
- Limited spectrum control, restricting adjustable lighting options
Best for: Growers with medium to large grow tents needing high-density, durable UV/IR light for maximizing flowering and yield.
Not ideal for: Home growers in humid environments or those seeking adjustable spectrum control, due to lack of waterproofing and limited spectrum tuning.
- Length:35.4 inches
- Number of Light Sources:4
- Wattage:500 watts
- Light Spectrum:365-370nm (UV), 730-745nm (IR)
- Diodes per UV bar:120
- Diodes per IR bar:88
- Lifespan:50,000 hours
- Material:Aluminum and copper
Our verdict“This set is a solid choice for serious growers who prioritize durability and high output over environmental flexibility.”
Mars Hydro ADlite UV30 & IR15 LED Grow Light for Indoor Plants
Designed for indoor growers looking to boost photosynthesis and flowering, this unit offers targeted UV and IR bars with a focus on simplicity and affordability. Unlike larger or more complex systems like the Spider Farmer SUPP-UV60 & IR30, it is more compact and easier to integrate into smaller grow setups, but it provides less coverage and lower wattage. The dual-stage functionality and the ability to simulate natural sunlight cycles make it appealing for growers who want a straightforward, effective supplement. However, the limited coverage area and the need for suspended installation mean it’s less suitable for larger or more automated systems. This makes it ideal for hobbyists or small-scale growers aiming for quick results without extensive setup complexity.
Pros:- Enhances photosynthesis and plant resistance
- Promotes faster growth and flowering
- Simple, effective natural sunlight simulation
Cons:- Incompatible with UV and blue light during vegetative stage, limiting flexibility
- Requires suspended installation for optimal positioning
Best for: Indoor gardeners with small grow tents or those new to supplemental UV/IR lighting looking for an affordable, easy-to-use solution.
Not ideal for: Large commercial growers or those needing broad coverage, since the unit’s smaller size limits its effectiveness over bigger areas.
- Coverage Area:3×3 ft
- Light Bars:Far Red IR, UV
- Compatibility:FCE4800, FC4800, other main lights under 500W
- Stages:Vegetative, flowering
Our verdict“This grow light suits small-scale or beginner growers prioritizing affordability and ease of use over extensive coverage.”
Spider Farmer SUPP-UV30 & IR16 LED Grow Light Bars Set 23.6″ (4-Bar)
This 23.6-inch set emphasizes high-density diodes and smart control compatibility, making it suitable for growers who want precise spectrum management in a compact form. Compared to the larger SUPP-UV60, it offers easier integration into smaller tents or automated systems, though it covers less area and consumes less power. Its high lifespan and effective spectrum targeting flowering and fruiting stages make it appealing for precise cultivation setups. The main limitation is the need for proper adjustment during different growth stages, and it might require additional lighting for larger areas. This pick is ideal for growers focused on fine-tuning spectra and integrating with smart systems for optimized plant performance.
Pros:- High-density LEDs improve plant growth and flowering
- Compatible with smart control systems for automation
- Long lifespan of 50,000 hours
Cons:- Requires careful adjustment based on growth stage
- Limited coverage area, may need extra lighting for larger spaces
Best for: Growers with small to medium tents who want spectrum precision and smart control capabilities for flowering and fruiting stages.
Not ideal for: Large-scale operations or growers needing broad coverage, since its size and output are limited for extensive setups.
- Length:23.6 inches
- Number of Bars:4
- UV Spectrum:365-370nm
- IR Spectrum:730-745nm
- Diodes per UV Bar:60
- Diodes per IR Bar:44
- Lifespan:50,000 hours
- Material:Aluminum and copper
Our verdict“This set is best for precision-focused growers who want compact, smart-compatible spectrum control during flowering.”
Mars Hydro ADlite UV55 & IR30 LED Grow Light for Indoor Plants, 4x4ft Coverage
This 4×4-foot fixture offers substantial coverage and promotes rapid growth with UV and IR bars, making it ideal for larger grow tents or small commercial setups. Compared with the Spider Farmer SUPP-UV60 & IR30, it emphasizes broader coverage and compatibility with high-wattage main lights, but it requires suspended installation and isn’t suited for growers who want simultaneous UV and blue light during vegetative stages. Its ability to stimulate flowering and flowering resistance in a large area makes it a go-to for commercial or serious hobby growers aiming for speed and efficiency. The main tradeoffs include installation complexity and a focus solely on flowering, limiting its flexibility for vegetative growth.
Pros:- Enhances plant growth, flowering, and nutrient absorption
- Large 4×4 ft coverage supports high-density setups
- Stimulates natural sunlight cycles effectively
Cons:- Requires suspended installation, which can be complex
- Limited use during vegetative stage if UV and blue lights are combined
Best for: Commercial growers or hobbyists with large tents seeking effective UV/IR boosting for rapid flowering and high yields.
Not ideal for: Small-scale growers or those needing adjustable spectrum during vegetative stages, due to installation requirements and limited spectrum options.
- Coverage Area:4×4 ft
- Light Type:LED
- Includes:UV55 & IR30 far red light bars
- Compatibility:TS3000, FC6500, FCE6500, FC8000, FCE8000, FC1000W, FCE1000W, FC1200W, FCE1200W
- Recommended Main Light:500W or above
Our verdict“This fixture is designed for large-area flowering enhancement, ideal for commercial or dedicated hobby growers with setup flexibility.”
Spider Farmer SUPP-R30 660nm Deep Red Supplemental Light Bars 23.6″
The SUPP-R30 focuses exclusively on deep red light at 660nm, targeting flowering and fruiting with high-density LEDs and daisy chaining for larger setups. Compared to full-spectrum options like the SUPP-UV60 & IR30, it provides intense, targeted red light but lacks UV and blue spectrums, limiting versatility during vegetative stages. The waterproof construction ensures durability in humid environments, and the 5-year warranty adds peace of mind. However, its narrow spectrum means it can’t support all growth phases alone and works best as a supplement alongside other full-spectrum lights. Ideal for growers seeking maximum flowering boost in small to medium tents, especially where targeted red light yields are prioritized.
Pros:- High-density LEDs provide uniform, intense red light
- Daisy chain capability simplifies multiple light setups
- Waterproof design suitable for humid environments
Cons:- Limited to deep red spectrum, not suitable for vegetative stages
- Not a full-spectrum light, needs to be paired with other lights
Best for: Growers aiming to optimize flowering and fruiting in small to medium tents with targeted deep red spectrum supplementation.
Not ideal for: Growers needing full-spectrum lighting or support during vegetative growth, as this unit is specialized for flowering enhancement.
- Wavelength:660nm
- Number of LEDs:88
- Length:23.6 inches
- Power Consumption:30 watts
- Suitable for:2×2, 3×3, 4×4 grow tents
- Durability:Waterproof LEDs, aluminum and copper frame
Our verdict“This deep red supplement excels at boosting flowering in small or medium tents but isn’t a standalone growth light.”
Spider Farmer GlowR40 LED Plant Grow Light, 2ft Deep Red Supplemental Lighting Bar, 650-665NM for Indoor Plants
The Spider Farmer GlowR40 stands out for its high-efficiency 650-665nm deep red LEDs, designed specifically to promote flowering and fruiting. Its waterproof, dust-resistant build makes it suitable for humid environments, and the programmable timer offers automation that many hobbyists and small growers will appreciate. Compared to the VIVOSUN LumaRay, which offers full-spectrum light, the GlowR40 focuses solely on red wavelengths, making it less versatile but more effective for flowering. The tradeoff is that it may require additional lighting for vegetative growth or full-spectrum needs. This light is ideal for growers who want a dedicated, reliable deep red supplement to boost flowering phases without the complexity of full-spectrum systems.
Pros:- High-efficiency deep red LEDs promote flowering and fruiting
- Waterproof and dust-resistant design suitable for humid environments
- Flexible installation options and multi-light connection capability
- Programmable timer for automated lighting control
Cons:- Limited to deep red spectrum, may require additional lighting for full spectrum needs
- Wattage may be insufficient for large grow spaces or full vegetative growth
Best for: Indoor growers focusing on flowering and fruiting stages who need a dedicated red light with automation.
Not ideal for: Growers seeking full-spectrum lighting for all plant growth stages or those with very humid, large spaces needing higher wattage coverage.
- Wattage:40W
- Wavelength:650-665nm
- Length:2ft
- Waterproof Rating:IP65
- Number of LEDs:72
- Timer:7-day digital programmable
Our verdict“This pick makes the most sense for growers seeking a focused, reliable red light to maximize flowering and fruiting results.”
Spider Farmer SUPP-R60 660nm Deep Red Supplemental Light Bars, 35.4 inches
The Spider Farmer SUPP-R60 offers a robust 60W output with 176 high-density 660nm LEDs designed to enhance flowering and yield. Its durable waterproof frame and daisy-chain feature make it suitable for scalable setups, especially in medium-sized grow tents. Unlike the VIVOSUN LumaRay, which provides full-spectrum light, the SUPP-R60 concentrates on deep red, making it less versatile but highly effective for specific flowering stages. The main tradeoff is that it may require additional full-spectrum lighting to support vegetative growth or diverse plant needs. This model is well-suited for growers who want a reliable, scalable red supplement to improve flowering performance without overcomplicating their setup.
Pros:- High-density LED array ensures uniform illumination
- Enhances flowering and yield potential effectively
- Sturdy waterproof construction with durable materials
- Daisy-chain feature allows scalable lighting setups
Cons:- Limited to deep red spectrum, so additional full-spectrum lights are needed
- Wattage may fall short for very large or high-light-demanding grow areas
Best for: Hobbyist or small commercial growers needing a durable, focused red supplement for flowering in medium-sized grow tents.
Not ideal for: Growers with large spaces or those wanting full-spectrum lighting for all growth phases, since wattage might be insufficient for extensive coverage.
- Length:35.4 inches
- LED Diodes:176 pcs
- Wattage:60 watts
- Spectrum:660nm deep red
- Daisy Chain:Yes
- Warranty:5 years
Our verdict“This light suits growers seeking a dependable, scalable red supplement to maximize flowering in medium-sized grow environments.”
VIVOSUN LumaRay LED Grow Light Bars 16” (8-Bar) Full Spectrum Side Lighting
The VIVOSUN LumaRay delivers full-spectrum light with a 60% red component, designed to promote even growth, higher yields, and flowering. Its 8-bar setup allows easy installation and expansion, especially with magnetic clamps, making it accessible for hobbyists and small growers. In comparison to the Spider Farmer GlowR40, which is focused solely on deep red wavelengths, the LumaRay’s broad spectrum offers greater versatility for all growth stages. However, it requires a separate SGS controller for remote operation, adding complexity and cost. This makes it a better choice for growers seeking a comprehensive lighting system that supports plant health from seedling to flowering rather than a strictly red-focused supplement.
Pros:- Promotes even plant growth and increases yields
- Full-spectrum with red enhancement supports all growth phases
- Easy to install with magnetic clamps and daisy chaining
- Compatible with remote SGS control for advanced customization
Cons:- Requires separate SGS controller for app-based control
- Limited coverage info may complicate scaling for larger setups
- Red component is only 60%, less intense than dedicated red lights
Best for: Growers wanting full-spectrum lighting with red enhancements for balanced, all-around plant development.
Not ideal for: Growers needing a dedicated flower-boosting red light or those with limited budgets who want simpler control options.
- Length:16 inches
- Number of Bars:8
- Spectrum:Full spectrum with 60% red
- Control Compatibility:SGS via E42A or E25 controller
- Power Supply:Gallium nitride
- Optical Lens:Prism-designed for high transmittance
Our verdict“This model is better suited to growers seeking an adaptable, full-spectrum system with red support rather than a narrow-focus red supplement.”
How We Picked
These products were evaluated based on their light spectrum, coverage capability, build quality, ease of use, and value for money. I prioritized models that feature a balanced combination of deep red and far red LEDs, as this spectrum is crucial for flowering and plant development. Additionally, I considered how user-friendly each fixture is, including installation and maintenance, and whether the spectrum control is customizable. The ranking reflects a mix of performance, durability, and price, aiming to recommend options suited for different grower needs and budgets.Factors to Consider When Choosing Led Grow Light With Far Red Supplemental
Choosing the right led grow light with far red supplemental involves understanding several key factors. Spectrum quality is vital, as it directly impacts flowering and flowering response. Coverage area and light intensity determine whether a fixture can support your grow space efficiently. Durability and build quality matter for long-term investment, especially in high-humidity environments. Price should be weighed against features—more advanced spectrum control and higher wattage often come with a higher cost but can improve yield. Lastly, ease of installation and adaptability can make a significant difference for growers new to supplemental lighting.Spectrum and Light Quality
The effectiveness of a grow light hinges on its spectrum, especially when it includes far red LEDs. A full spectrum that mimics natural sunlight supports healthy plant growth, but the addition of deep red (660nm) and far red (730-740nm) LEDs promotes flowering and elongation. It’s important to check if the spectrum is adjustable or fixed, as tunable spectrum models allow for tailored light recipes depending on growth stage. Poor spectrum quality or lack of far red can limit flowering potential, so prioritize fixtures that integrate these wavelengths effectively.
Coverage Area and Intensity
The size of your grow space should dictate the wattage and coverage of your light. Larger fixtures with higher output ensure even light distribution across bigger areas, but they come with increased cost and energy consumption. Conversely, smaller or lower-watt units might suit personal or small-scale grows but could lead to uneven lighting in larger setups. Consider the fixture’s PPFD (photosynthetic photon flux density) ratings to gauge how well it can support your plants at the necessary height and density.
Build Quality and Durability
Investing in a well-made fixture pays off in longevity and consistent performance. Look for sturdy aluminum heatsinks, reliable drivers, and waterproof or moisture-resistant components—especially if you’re growing in humid environments. Cheaper models often cut corners on build quality, risking overheating or failure over time. A durable, thoughtfully designed fixture reduces maintenance costs and provides stable light output throughout your grow cycle.
Price and Value
While premium models offer advanced spectrum control, larger coverage, and better build, they come at a higher price point. Budget options can still deliver decent results for small-scale or beginner growers but often lack spectrum flexibility and durability. Weigh the features you need against your budget—sometimes investing a bit more upfront results in better yields and fewer replacements down the line. Look for fixtures that strike a good balance between cost and features relevant to your grow goals.
Ease of Use and Installation
Simple installation and user-friendly controls are important, especially if you’re new to supplemental lighting. Features like adjustable hanging kits, dimming controls, and spectrum tuning can save time and frustration. Some fixtures come with integrated timers or remote controls, adding convenience. Consider how easy it will be to set up and maintain the light—complex systems might require more technical knowledge or frequent adjustments.
Frequently Asked Questions
Can I use far red LEDs without a full-spectrum grow light?
Using far red LEDs without a full-spectrum grow light can limit your plants’ overall health and growth quality. Far red is most effective when combined with a broad spectrum of light that mimics natural sunlight, supporting photosynthesis and development. Standalone far red lights may promote flowering but could result in weaker overall plant health. For best results, pair far red supplements with a comprehensive grow light that covers the necessary wavelengths.
How much far red supplemental lighting do I need for my grow space?
The amount of far red light needed depends on your grow space size and plant type. Generally, a ratio of about 10-20% of your total light spectrum should be dedicated to far red, but this varies based on growth stage. Too much far red can cause excessive stretching, while too little may reduce flowering efficiency. It’s best to choose fixtures with adjustable spectrum controls so you can tailor the intensity as your plants develop.
Is it worth paying more for a grow light with spectrum control?
Opting for a fixture with spectrum control can significantly enhance your growing results, especially during different growth stages. Adjustable spectrum allows you to optimize light recipes for vegetative growth, flowering, and ripening, potentially increasing yields and plant quality. While these models tend to cost more upfront, they offer flexibility that can justify the investment, particularly for serious growers aiming for maximum productivity.
How important is the build quality in grow lights with far red supplements?
Build quality directly impacts the longevity and reliability of your grow light, especially in humid or demanding environments. A sturdy fixture with quality materials, good heat dissipation, and reliable drivers reduces the risk of failures and maintenance costs. Lower-quality lights may overheat or degrade faster, disrupting your grow cycle. Investing in well-made fixtures ensures consistent performance, which is vital for optimal plant development.
Can I upgrade my existing grow light with far red LEDs later?
While some grow lights allow for add-on modules or spectrum upgrades, most fixtures do not support significant modifications after purchase. It’s often more effective to buy a model with the spectrum features you need from the start, especially if you’re serious about maximizing yields. However, modular systems or fixtures with adjustable spectrum settings provide flexibility to adapt to your growing needs without replacing the entire setup.
Conclusion
The best overall choice for most growers is the Spider Farmer SUPP-UV60 & IR30 due to its balanced spectrum and quality build, making it suitable for serious hobbyists and small commercial setups. The Mars Hydro ADlite UV55 & IR30 offers excellent coverage at a competitive price, perfect for those with larger grow areas seeking value. For growers willing to invest in premium features, the Spider Farmer GlowR40 provides advanced spectrum control and durability, ideal for experienced cultivators. Beginners or those on a tighter budget should consider simpler, more affordable options that still include essential far red features, while larger or professional setups benefit from higher wattage and customizable spectrum options. Ultimately, your choice depends on your grow space, budget, and growth goals.
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