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GrowPros Solutions COBRA 150 / 300 Watt Under Canopy Grow Light UVA + Blue + 5000K | Deep Red + Far Red + 3000K

GrowPros Solutions COBRA 150 / 300 Watt Under Canopy Grow Light UVA + Blue + 5000K | Deep Red + Far Red + 3000K

SKU: GPS-UCL3-4FT-UV

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The GrowPros Solutions COBRA Under Canopy Light – Model 3 is a high-performance dual-channel interlighting system designed to deliver targeted light beneath dense plant canopies. Installed below the top foliage, the fixture ensures that shaded leaves and lower bud sites receive sufficient light, improving plant uniformity, enhancing flower density, and increasing overall crop yield.

This advanced under-canopy lighting solution features two independently controllable spectrum channels that allow growers to tailor the light recipe for different growth stages. Channel 1 combines UVA, blue light, and 5000K white spectrum, supporting vigorous vegetative growth, improved plant structure, and enhanced resin development. Channel 2 delivers deep red, far-red, and warm 3000K white light, which promotes flowering, bud development, and higher biomass production.

The COBRA Model 3 is available in two sizes—4 ft and 8 ft—to accommodate different grow layouts and canopy widths. The 4-foot model operates at approximately 150W (75W per channel) and delivers around 450 µmol/s of PPF, making it ideal for single bench rows or compact grow spaces.
For larger installations, the 8-foot model provides about 300W total output (150W per channel), offering wider coverage and stronger photon delivery to deeper canopy layers.

Designed with a slim aluminum housing, built-in driver, and passive cooling system, the fixture produces minimal heat while maintaining reliable long-term performance. Its IP65-rated waterproof construction ensures durability in humid grow environments. The light also supports RJ12 data connectivity and 0–10V dimming, enabling integration with lighting controllers and allowing growers to automate light intensity and spectrum management.

With power and data daisy-chain capability, multiple fixtures can be connected easily across large grow rooms, vertical farming systems, or greenhouse benches. The COBRA under-canopy lighting system helps transform shaded lower canopy zones into productive flowering areas, improving overall crop quality and harvest consistency.


Key Features

  • Dual-channel spectrum control:

    • Channel 1: UVA + Blue + 5000K White

    • Channel 2: Deep Red + Far Red + 3000K White

  • Available sizes: 4 ft and 8 ft under-canopy light bars

  • 4 ft model: ~150W total power with ~450 µmol/s PPF

  • 8 ft model: ~300W total power for extended canopy coverage

  • Independent dimming for each channel for precise crop-steering

  • Slim profile with built-in driver for easy installation under plant rows

  • RJ12 controller compatibility and 0–10V dimming for automated lighting control

  • Power and data daisy-chain capability for large-scale grow setups

  • IP65 waterproof rating for durability in humid cultivation environments

  • Designed to enhance lower bud growth, increase yield, and improve flower quality

Is the COBRA Under Canopy Light Worth It?

The GrowPros Solutions COBRA Model 3 is a dual-channel supplemental LED designed to illuminate flowers and leaves beneath dense plant canopies. Its independently dimmable UVA + Blue + 5000K and Deep Red + Far Red + 3000K channels let growers adjust the spectrum through the cultivation cycle. Available in 150W (4ft) and 300W (8ft) models, it provides 450 or 900 μmol/s PPF at 3.0 μmol/J, with a slim housing, built-in driver, IP65 protection, and passive thermal management. A compatible controller and separately sold power cord are required for operation.

Features & Benefits

Specifications

What is included?

Warranty & Returns

Features

Improve Under Canopy Lighting Performance

The COBRA Model 3 delivers adjustable supplemental light to shaded lower growth. Channel 1 combines UVA, blue, and 5000K white light, while Channel 2 supplies deep red, far red, and 3000K white light. Both channels dim independently through a compatible controller. Choose the 150W 4ft model (75W per channel) or the 300W 8ft model (150W per channel). The narrow, low-heat fixture uses passive cooling and allows compatible lights of the same model and length to share power and data connections. A controller and power cord are required and sold separately.

Slim Bar Profile

Dual Channel Spectrum

Independent Dimming Control

150W / 300W Models

3.0 μmol/J Efficacy

Passive Cooling

Benefits of LED Grow Lights

LED grow lights offer numerous benefits for plant cultivation. They are energy-efficient, customizable in spectrum, emit minimal heat, and have a long lifespan. These qualities reduce costs, enhance growth, and promote environmentally friendly and low-maintenance cultivation practices.

Instant On/Off

It allows precise control over light cycles.

Full Spectrum Lighting

This promotes healthier and more robust plant growth.

Low Heat Emission

This reduces the risk of heat stress and saves them from damaging

Easy Installation

LED grow lights require less maintenance, saving you time and effort.

Optimized Light Output

Allows you to adjust the light spectrum to suit different plant types and growth stages

Power Saver

LED grow lights save energy, costs, and promote sustainable cultivation.

Durable Design

Constructed with top-quality materials, ensuring prolonged use in various conditions.

Consistent Output

Engineered for sustained performance, guaranteeing optimal light output over time.

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Why GrowPros Solutions?

GrowPros Solutions stands out for delivering high-performance cultivation equipment designed by experienced growers. With over 25 years of industry knowledge, the company focuses on innovation, efficiency, and affordability, helping growers maximize yields and plant quality. Their in-house manufacturing enables faster product development and reliable performance. By offering advanced lighting technologies and practical solutions, GrowPros supports both commercial and small-scale cultivators in achieving consistent, high-quality results.

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Spectrum Matters

The COBRA Model 3 uses two independently dimmable channels so growers can vary the spectral mix across growth stages. Channel 1 contains UVA, blue and 5000K white LEDs, and Channel 2 contains deep red, far red and 3000K white LEDs. Positioned below the upper canopy, the bars supplement shaded flowers and foliage, supporting more even lower-canopy light exposure. Both 4ft and 8ft versions offer 3.0 μmol/J efficacy with passive thermal management.

Dual Spectrum Performance

Two independently dimmable channels combine UVA + Blue + 5000K with Deep Red + Far Red + 3000K so growers can adjust the spectral mix through vegetative growth and flowering.

Even Under Canopy Coverage

A slim under-canopy bar supplies supplemental light to otherwise shaded lower leaves and flowers, helping improve coverage beneath dense growth.

Selectable Power Options

Choose 150W (4ft, 75W per channel) or 300W (8ft, 150W per channel), both rated at 3.0 μmol/J with independently adjustable spectral channels.

Customer Reviews


Trusted by authentic customer reviews from verified buyers worldwide.
If I could rate 6 stars I would!
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Customer service was outstanding great…
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I’ll definitely order from them again
The machine is doing just what my…
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we’re starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Fantastic
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
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FAQ Section

What type of spectrum does the GrowPros COBRA Under Canopy Grow Light provide?
Channel 1 provides UVA + Blue + 5000K; Channel 2 provides Deep Red + Far Red + 3000K. Each channel can be dimmed independently through a compatible controller.
How does the dual-channel feature improve plant growth and flexibility?
A compatible controller independently dims the two channels so growers can adjust the balance of blue/UVA/5000K and red/far-red/3000K light across growth stages.
Is this grow light suitable for both vegetative and flowering stages?
Yes. Channel 1 is intended for greater use during vegetative growth and early flowering, while Channel 2 can be increased later in flowering. This is supplemental under-canopy lighting, not a replacement for the primary overhead lighting system.
How does the under-canopy design benefit plant development?
The compact bar sits beneath upper foliage to supply supplemental light to shaded lower leaves and flowers, potentially improving their light exposure and development.
What kind of cooling does the COBRA use?
It uses passive thermal management rather than a fan.
Can compatible COBRA fixtures be daisy-chained?
Yes. Power and data can be daisy-chained between compatible fixtures of the same model and length, within the manufacturer’s voltage-specific fixture limits. Do not mix models or lengths in a chain.

Specifications

SPECS & DIMENSIONS

Dimensions 44.5 x 3.7 x 2.8 inches (4ft) / 92 x 3.7 x 2.8 inches (8ft)

STRUCTURE & LIGHT SYSTEM

Voltage Compatibility

  • Both COBRA Model 3 sizes accept 120–277V input.

LED Bar Design

  • Slim bar with two independently dimmable channels: UVA + Blue + 5000K and Deep Red + Far Red + 3000K.

Driver System

  • Built-in driver; a separate compatible power cord and controller are required for operation.

Fixture Features

Light Intensity Control

  • Both spectrum channels can be dimmed independently with a compatible controller; the light requires a controller to turn on.
Brand GrowPros Solutions
4ft Under Canopy Specs
Wattage 150 W (75W / 75W)
Input Voltage 120V-277V
Lifetime Testing L90: >36,000 hrs
Power Factor >0.9
Thermal Management Passive
IP Rating IP65
Operating Temperature 0°F to 104°F
Spectrum 1 UVA + Blue + 5000K
Spectrum 2 Deep Red + Far Red + 3000K
PPF 450 μmol/s
PPE 3.0 μmol/J
AMPS@ 120V – 1.28A
208V – 0.73A
220V – 0.67A
240V – 0.63A
277V – 0.54A
Daisy chain option 8pcs @120V
12pcs @208V
14pcs @220V
16pcs @240V
18pcs @277V
4ft SpecSheet PDF
8ft Under Canopy Specs
Wattage 300 W (150W / 150W)
Input Voltage 120V-277V
Lifetime Testing L90: >36,000 hrs
Power Factor >0.9
Thermal Management Passive
IP Rating IP65
Operating Temperature 0°F to 104°F
Spectrum 1 UVA + Blue + 5000K
Spectrum 2 Deep Red + Far Red + 3000K
PPF 900 μmol/s
PPE 3.0 μmol/J
AMPS@ 120V – 2.57A
208V – 1.46A
220V – 1.37A
240V – 1.25A
277V – 1.08A
Daisy chain option 4pcs @120V
6pcs @208V
7pcs @220V
8pcs @240V
9pcs @277V
8ft SpecSheet PDF

What is Included?

What’s in the box.

  • 1 x COBRA Model 3 LED Light Bar (selected 4ft or 8ft model)
  • Power cord and compatible controller required; sold separately

Warranty Policy

It's recommended to contact GrowPros Solutions for specific warranty information related to their LED grow lights. Please note that warranty details may vary depending on the product model, purchase location, and other factors.

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