Skip to content
Free Shipping on most orders over $175 | Sales Tax in NJ only
Free Shipping on most orders over $175 | Sales Tax in NJ only

Bloom and Flowering Grow Lights

LED grow lights for flowering are engineered for crops in their peak reproductive phase. Red and far-red wavelengths dominate here, boosting bud and fruit development while supporting photoperiod needs.

These bloom red lights are commonly used in grow tents and commercial rows due to their deep canopy penetration and efficiency. Growers aiming for maximum yield without sacrificing quality will benefit from lighting that aligns with upper DLI recommendations.

Optimize your indoor grow with our energy rebates program and bulk pricing, plus read our comprehensive blog to understand how PPFD and light penetration affect plant canopies.

Angled view of the GrowPros 4′ Under Canopy Grow Light 125W mounted on adjustable telescoping legs with round base supports.
Light stand with a mounted GrowPros Under Canopy light bar on a white background.
$120.00 - $145.00
$120.00 - $145.00
$120.00 - $145.00
$120.00

GrowPros 4′ Under Canopy Grow Light 125W Model 1 - Full Spectrum + Far Red

GrowPros

Boost lower canopy yields and potency with 4 ft under canopy lights engineered for uniform light distribution and optimized flower development. Gro...

View full details
$120.00 - $145.00
$120.00 - $145.00
$120.00 - $145.00
$120.00
Angled close-up of the GrowPros 8-foot under canopy grow light showing its vibrant red and purple LED spectrum.
A slim GrowPros Under Canopy Light 8ft Model 2 80% Deep Red Spectrum under canopy grow light mounted on a light stand.
$140.00 - $165.00
$140.00 - $165.00
$140.00 - $165.00
$140.00

GrowPros 4′ Under Canopy Grow Light Model 2 - 80% Deep Red Spectrum 125W

GrowPros

Boost lower canopy yields and flower density with 4 ft under canopy lights engineered for deep red spectrum and uniform light distribution. The Gro...

View full details
$140.00 - $165.00
$140.00 - $165.00
$140.00 - $165.00
$140.00
Wide-angle view showing Faven under canopy lighting setup illuminating dense lower foliage.
Two Faven Under Canopy Lights on a white background.
$149.00 - $174.00
$149.00 - $174.00
$149.00 - $174.00
$149.00

Faven 120W Under Canopy Lights

Faven Lighting

Boost yields from the bottom up with 120W under-canopy bars that improve bud size, reduce lollipopping, and work with any commercial grow setup. Th...

View full details
$149.00 - $174.00
$149.00 - $174.00
$149.00 - $174.00
$149.00
Combined graphic showing the adjustable spectrum of Faven Chroma with R4–R9 alongside the independent far-red channel spectrum.
Side view of Faven Chroma under canopy light with visible LED strip and “CHROMA by Faven” logo.
$199.00 - $199.00
$199.00
$199.00 - $199.00
$199.00

Faven Chroma 120W Under Canopy Light with Spectrum Control

Faven Lighting

Boosts yields by 20-30% with spectrum control, 2.9 umol/J efficiency, and far red enhancement for full canopy performance. The Faven Chroma Under C...

View full details
$199.00 - $199.00
$199.00
$199.00 - $199.00
$199.00
Close-up of a single Mammoth UV bar lit up in dark room, showcasing high-density UV diode layout.
Product render of Mammoth UV Kit showing two aluminum UV bars and external 100W driver with cable connections.
Save $51.00 Save $0.00
$350.00
$350.00 - $350.00
$350.00
$299.00
$299.00 - $299.00
$299.00

Mammoth UV Upgrade Kit

Mammoth Lighting

A high-power UV grow light upgrade delivering true UVA and UVB output, designed for controlled late flower use and improved bud quality. The Mammot...

View full details
$350.00
$350.00 - $350.00
$350.00
$299.00
$299.00 - $299.00
$299.00
Save $51.00 Save $0.00
Grand Master LEDs Tarantula Volcano 120W Under Canopy/Side Lighting LED Light Grand Master LEDs
Grand Master LEDs Tarantula Volcano 120W Under Canopy/Side Lighting LED Light Grand Master LEDs
$199.00 - $199.00
$199.00
$199.00
$199.00 - $199.00
$199.00

Grand Master LEDs Tarantula Volcano 120W Under Canopy/Side Lighting

Grand Master LEDs

Boost lower bud sites with high-efficiency side or under canopy lighting that’s waterproof, compact, and easy to install. This side and under canop...

View full details
$199.00 - $199.00
$199.00
$199.00
$199.00 - $199.00
$199.00
Spectrum chart labeled SQD showing dominant deep red peak around 680nm with supplemental blue and full spectrum output.
Close view of GrowPros Model 5 under canopy light showing built in air circulation tube and orange end caps for row airflow.
$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

GrowPros Under Canopy Light Model 5 Air Circulation - 80% Deep Red Spectrum

GrowPros

An under canopy LED grow light with integrated air circulation delivering deep red spectrum to improve lower bud density and overall yield. The Gro...

View full details
Perspective view of the AG-140 grow light showing diode layout and green end cap, highlighting red-enhanced spectrum option for improved flower development.
Angled close-up of AG-140 LED grow light displaying LED diodes along the full spectrum board for even canopy light coverage.
$225.00 - $320.00
$225.00 - $320.00
$225.00 - $320.00
$225.00

Grower's Choice AG140 LED Grow Light - Full Phase or Red Enhanced

Grower's Choice

AG140 Full Phase and AG140 Red Enhanced are precision LED grow lights engineered to correct canopy VPD and eliminate low-quality bud production. Th...

View full details
$225.00 - $320.00
$225.00 - $320.00
$225.00 - $320.00
$225.00
PPFD output chart for Griffin LED grow light at 100W, 120W, and 150W setups showing light intensity at 12" height.
Underside view of Griffin grow light bars powered on, highlighting distinct color outputs from each LED type.
$899.00 - $899.00
$899.00
$899.00 - $899.00
$899.00

GrowPros Griffin Advanced LED Grow Light - 4 Channels Mix & Match

GrowPros

Advanced LED grow light system delivering precise spectrum control, high efficiency, and modular flexibility for professional grow operations. Buil...

View full details
Craft Farmer V3 Undercanopy Lights installed beneath plants to boost lower canopy yield with deep red LED spectrum.
Close-up of Craft Farmer V3 label showing 120W power, IP66 rating, and Osram/Samsung diodes for flowering stage.
$229.99 - $229.99
$229.99
$229.99 - $229.99
$229.99

Craft Farmer V3 120W Under Canopy Light

Craft Farmer

Craft Farmer undercanopy light boosts yield, color, and quality with optimized Deep and Far Red spectrum. The Craft Farmer V3 Undercanopy Light is ...

View full details
$229.99 - $229.99
$229.99
$229.99 - $229.99
$229.99
Close-up of Medic Grow UV-FR LED bar, separate driver and chart showing 395 nm UV & 730 nm FR spectrum peaks.
Pair of Medic Grow UV-FR 4-ft supplemental LED grow light bars for indoor gardens.
Save $39.01 Save $0.00
$169.00
$169.00 - $169.00
$169.00
$129.99
$129.99 - $129.99
$129.99

Medic Grow UV + FR 4 ft Supplemental LED Grow Light Bar

Medic Grow

Enhance flavor, yield, and growth with Medic Grow’s UV + Far Red LED bar built to supercharge your main LED setup. The Medic Grow UV + FR Bar is a ...

View full details
$169.00
$169.00 - $169.00
$169.00
$129.99
$129.99 - $129.99
$129.99
Save $39.01 Save $0.00
Grower's Choice 120W Under Canopy Light LED Light Grower's Choice
Grower's Choice Red Spectrum UCL with 120W power and 3.07 µmol/J efficacy.
$200.00 - $200.00
$200.00
$200.00 - $200.00
$200.00

Grower's Choice 120W AG120 Red Enhanced Under Canopy Light

Grower's Choice

120W under canopy light with 3.07 µmol/J efficacy, 371 µmol/s output, and IP66 rating. Red spectrum designed for lower bud development. The Grower’...

View full details
$200.00 - $200.00
$200.00
$200.00 - $200.00
$200.00
Grower's Choice 120W Under Canopy Light LED Light Grower's Choice
Grower's Choice 120W Under Canopy Light LED Light Grower's Choice
$200.00 - $200.00
$200.00
$200.00 - $200.00
$200.00

Grower's Choice 120W AG120 Full Phase Under Canopy Light

Grower's Choice

120W under canopy light with 2.87 µmol/J efficacy, IP66 rating, and up to 30-fixture daisy chaining. Built to maximize lower canopy bud development...

View full details
$200.00 - $200.00
$200.00
$200.00 - $200.00
$200.00
Close-up angled view of the GrowPros Model 4 4FT Under Canopy Grow Light showing the aluminum body, GrowPros Solutions branding, and power connector on one end.
Full horizontal view of the GrowPros Under Canopy Light mounted on a GrowPros Light Stand.
$195.00 - $265.00
$195.00 - $265.00
$195.00 - $265.00
$195.00

GrowPros 4' Viper Under Canopy Grow Lights Model 4 - 150W Dual Channel 80% Red + White / Far Red (730nm)

GrowPros

Boost bud quality and increase yields by lighting up the lower canopy with a compact dual-channel system designed for deeper, more uniform flower d...

View full details
$195.00 - $265.00
$195.00 - $265.00
$195.00 - $265.00
$195.00
Close-up of the GrowPros 4′ Under Canopy Grow Light Model 3, featuring a sleek aluminum body and high-efficiency LED strip protected under a clear lens.
GrowPros 8′ Under Canopy Grow Light mounted on adjustable black floor stands, showcasing the dual-channel light bar in a clean side-angle view.
$195.00 - $220.00
$195.00 - $220.00
$195.00 - $220.00
$195.00

GrowPros 4' Cobra Under Canopy Grow Lights Model 3 - 150W Dual Channel UVA + Blue + 5000K / Deep Red + Far Red + 3000K

GrowPros

Push more light through your canopy layers using this compact 4ft dual-channel fixture built for B-bud boost and consistent growth below the tops. ...

View full details
$195.00 - $220.00
$195.00 - $220.00
$195.00 - $220.00
$195.00

Frequently Asked Questions

What color spectrum is best for flowering bud?

During flowering, buds benefit from a red-heavy spectrum, which encourages budding and helps maximize yields. However, a full-spectrum light, which includes some blue, white, and other wavelengths, more closely mimics sunlight and produces healthier, higher-quality buds.

Can I use only red lights during flowering?

You can, but it's not recommended. While red light promotes flowering, using only red limits the plant’s access to other beneficial wavelengths like blue, green, and cyan. Full-spectrum lights or red lights combined with warm/cool white LEDs produce better results by providing a broader range of usable light.

Should I run all my lights (red, blue, and white) during the flowering stage?

Yes. Running all available LEDs creates a fuller light spectrum, closer to natural sunlight. This helps the plant develop more balanced growth and maximizes yield. Even during flowering, plants still use some blue and other wavelengths, not just red.

What happens if I use red and blue lights during flowering?

Red and blue combinations (sometimes called “blurples”) can support flowering but miss key parts of the light spectrum, like green and yellow. While you may still grow decent buds, modern full-spectrum LED lights (including white light) generally outperform blurple setups in both yield and quality.