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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.

Grower's Choice 1000 Watt Double Ended CMH Kit (Master Pursuit) CMH Light Grower's Choice
Grower's Choice 1000 Watt Double Ended CMH Kit (Master Pursuit) Save $101.00 Save $0.00
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$627.00
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$627.00

Grower's Choice 1000 Watt Double Ended CMH Kit (Master Pursuit)

Grower's Choice

Run CMH, HPS, or MH lamps with this pro-grade DE fixture designed for full-spectrum power and flexible voltage input. The Grower’s Choice GC1000 DE...

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$728.00
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$627.00
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$627.00
Save $101.00 Save $0.00
Grower's Choice 3K 1000 Watt DE CMH Bulb Sold out
$249.00
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$164.00
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$164.00

Grower's Choice 3K 1000 Watt Double Ended CMH Bulb

Grower's Choice

Introducing the world’s first 1000W Ceramic Metal Halide lamp. As a direct replacement for your existing 1000 watt HID fixtures, this 3K 1000W CMH ...

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$249.00
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Grower's Choice 4K 1000 Watt DE CMH Bulb Sold out
$249.00
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$169.00
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$169.00

Grower's Choice 4K 1000 Watt Double Ended CMH Bulb

Grower's Choice

Introducing the world’s first 1000W Ceramic Metal Halide lamp. As a direct replacement for your existing 1000 watt HID fixtures, this 4K 1000W CMH ...

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$249.00
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$249.00
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$169.00
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Grower's Choice 3K-R 315 Watt SE CMH Bulb Sold out
$152.00
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Grower's Choice 3K-R 315 Watt Single Ended CMH Bulb

Grower's Choice

The Grower’s Choice 315w CMH Lamps are suitable for use in all standard 315w CMH fixtures. The 3K-R is an enhanced version of the 3K lamp that is d...

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Grower's Choice DE MH 4K 600 Watt Bulb
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Grower's Choice 4K 600 Watt Double Ended MH Bulb

Grower's Choice

The Grower's Choice 4K bulb is a slightly warmer metal halide, making it suitable for both flowering and vegetative growth. Growers get the most us...

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$145.00
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Grower's Choice 4K 500 Watt Single Ended CMH Bulb
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Grower's Choice 4K 500 Watt Single Ended CMH Bulb

Grower's Choice

Grower’s Choice 4k-CMH Daylight lamp is the best option for hearty vegetative growth leading to a healthy bloom phase. With a Color Rendering Index...

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Grower's Choice 3K 315 Watt SE CMH Bulb
Save $70.00 Save $0.00
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Grower's Choice 3K 315 Watt Single Ended CMH Bulb

Grower's Choice

The Grower’s Choice 315w CMH/LEC Lamps are suitable for use in all standard 315w CMH/LEC fixtures. Grower’s Choice 315w CMH/LEC Lamps use a proprie...

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Grower's Choice 3K 500 Watt Single Ended CMH Bulb
Save $66.00 Save $0.00
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Grower's Choice 3K 500 Watt Single Ended CMH Bulb

Grower's Choice

Grower’s Choice 3k-CMH lamp utilizes a full phase spectrum that is designed to be used in all stages of growth but optimized for bloom. With a Colo...

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Grower's Choice 10K 500 Watt Single Ended CMH Bulb
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Grower's Choice 10K 500 Watt Single Ended CMH Bulb

Grower's Choice

Grower’s Choice final phase 10k-CMH finishing lamp should be used during the last week to two weeks before harvest and is specifically designed to ...

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Grower's Choice 4K 315 Watt SE CMH Bulb
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Grower's Choice 4K 315 Watt Single Ended CMH Bulb

Grower's Choice

The Grower’s Choice 315w CMH/LEC Lamps are suitable for use in all standard 315w CMH/LEC fixtures. Grower’s Choice 315w CMH/LEC Lamps use a proprie...

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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.
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Grower's Choice 120W 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’...

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Grower's Choice 120W Under Canopy Light LED Light Grower's Choice
Grower's Choice 120W Under Canopy Light LED Light Grower's Choice
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Grower's Choice 120W 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...

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Compact view of fully folded Grower's Choice ROI-FV 650W LED Bar for storage or transport.
Grower's Choice ROI-FV 650W LED Bar shown upright and partially unfolded for canopy light distribution.
Save $400.00 Save $0.00
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Grower's Choice ROI-FF 650W 4 x 4 Flowering Light

Grower's Choice

Dial in explosive flowering performance with 1950 PPF output, a 3.0 µmol/J efficiency rating, and a spectrum built to fuel dense, terpene-rich yiel...

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Grower's Choice UV-R Bars shown on ROI-E720 grow light with arrows and label indicating optional upgrade.
Pair of Grower's Choice Bloom Boost UV-R Bars designed for ROI-E720 LED grow light.
$180.00 - $180.00
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Grower's Choice Bloom Boost UV-R Bar for ROI-E720

Grower's Choice

Enhance resin and terpene production with an energy-efficient UV finishing bar designed for the ROI-E720. The Growers Choice Bloom Boost UV-R Bar i...

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$180.00 - $180.00
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Grower's Choice 2K 1200 Watt DE HPS Bulb
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Grower's Choice 2K 1200 Watt Double Ended HPS Bulb

Grower's Choice

The Grower's Choice Master Pursuit 1200 watt DE HPS lamp is specifically engineered with a durable high intensity arch tube built from leading Euro...

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$89.00 - $89.00
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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.