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A silver 150W LED grow light with adjustable legs and a blue connector.
Total Grow 150W LED grow light bar, angled, with red/blue LEDs and a connector.
TotalGrow 150W under-canopy LED grow light with pink and blue diodes, silver housing, and black power connector.
Outdoor-rated LED grow light fixture with aluminum housing, blue connector, and visible LED diodes.
Light spectrum graph showing "High-Red Spectrum" and "Mid-Red Spectrum" with peaks in blue and red light wavelengths.
Photonic distribution graph showing peaks at blue and red wavelengths, spanning 400-700 nm.
Light spectrum graph showing peak photonic distribution in blue and red wavelengths.
A silver 150W LED grow light with adjustable legs and a blue connector.
Total Grow 150W LED grow light bar, angled, with red/blue LEDs and a connector.
TotalGrow 150W under-canopy LED grow light with pink and blue diodes, silver housing, and black power connector.
Outdoor-rated LED grow light fixture with aluminum housing, blue connector, and visible LED diodes.
Light spectrum graph showing
Photonic distribution graph showing peaks at blue and red wavelengths, spanning 400-700 nm.
Light spectrum graph showing peak photonic distribution in blue and red wavelengths.

TotalGrow UCL 150W Under Canopy LED Grow Light

Official TotalGrow Dealer Model: TG15B-H1M-30-D1-E8UBC-1pk/CP-N5RJ-UCL-120
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 $375.00 USD
starting from 0% interest financing from /mo.

Payment Options

Options:Pay in Four, Pay Monthly
Amount:Up to $1,500 (Pay in 4)
Up to $10,000 (Monthly)
Schedule:Bi-weekly to Monthly
Term:6 weeks, 12 or 24 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Schedule:Bi-weekly to Monthly
Term:6 weeks, 6 or 12 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Finance up to:$4,000
Must apply on a desktop device.
Schedule:Flexible
Term:Up to 36 months
Interest:Processing fee + interest
Lease-to-Own?Yes
Amount:$500 to $10,000
Looking to finance equipment under your corporation? Learn more about Business Financing
  • Delivers up to 457 µmol/s of supplemental light at a high 3.0 µmol/J efficacy
  • IP65-rated housing protects internal diodes from high humidity and regular foliar spraying
  • Daisy-chain up to 15 units on a 240V circuit for clean power management in larger rooms
  • 5-year warranty
  • View More Details

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VOLUME PRICING

Commercial & Bulk Purchasing

We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.

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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are adding under-canopy lighting because your lower layers underperform and waste valuable vertical space.
  • Boosting lower-tier density is your focus because 100W bars often lack the punch for deep canopy penetration.
  • You are switching to daisy-chain power because managing individual plugs for every bar makes maintenance a chore.

What We Found

  • The narrow 2.3 inch profile makes it easy to slide these into a packed tent without bumping into your main stalks.
  • We noticed the High-Red option is the way to go if you want to push for denser development in the final weeks.
  • The included stands are sturdier than they look and actually keep the bars stable even on slightly uneven floors.

What Users Say

  • Buyers who added these to their existing rows say they finally stopped throwing away the bottom third of their harvest.
  • Users who daisy-chained several units together say it saved them from running a dozen messy extension cords.

TotalGrow UCL 150W Under Canopy LED Grow Light

Lower canopy layers consistently underperform in yield and quality because they receive insufficient light—costing growers significant revenue from wasted vertical space. The TotalGrow UCL 150 solves this problem by delivering 421-457 µmol/s at exceptional 2.8-3.0 µmol/J efficacy—providing significantly more output than the TotalGrow Mezzo 100W bar—with spectrum options specifically engineered for undercanopy applications, enabling growers to maximize production from every layer of their canopy with advanced LED grow lights.

The UCL 150 is thoroughly crafted around undercanopy and intracanopy lighting requirements. Its dimmable, powerful output features optimal spectrum choices—a High-Red option (80% red) for maximum photosynthetic response and flower development, or a Mid-Red balanced spectrum (50% red) for fuller spectrum support. The wider light output pattern ensures even distribution throughout lower canopy layers, complementing powerful top lighting like the TotalGrow 660W High Intensity Bar or the high-output TotalGrow Solark 1000W to take yields and bud grades to the next level.

This rugged, IP65-rated LED light bar measures just 2.3 inches wide and 43 inches long, making it easy to position and work around in crowded growing spaces. Convenient daisy-chain connectivity allows linking up to 8, 15, or 18 units depending on voltage, while the included mounting stands enable quick installation. With 50,000-hour lifetime, 5-year warranty, and the backing of the TotalGrow expert service team, the UCL 150 removes the complexity and risk from undercanopy lighting while delivering reliable performance cycle after cycle.

Features

📈
Maximize Lower Canopy Yields

Increase yields and bud grades in lower plant layers by delivering optimal light where traditional top lighting fails to penetrate.

⚡
High-Efficiency Output

150W power delivers 421-457 µmol/s at 2.8-3.0 µmol/J efficacy for maximum photosynthetic impact per watt consumed.

🌈
Optimized Spectrum Options

Choose High-Red (80%) for maximum flowering response or Mid-Red (50%) for balanced full-spectrum undercanopy support.

📐
Wide-Angle Distribution

Engineered light pattern provides even coverage throughout lower canopy layers for uniform development and quality.

🔗
Scalable Connectivity

Daisy-chain up to 8, 15, or 18 units on 120V, 240V, or 277V for simplified power distribution and synchronized control.

🛡️
Rugged, Compact Design

IP65-rated bar at 43" x 2.3" x 2.5" and only 5 lbs is easy to position, work around, and withstands demanding grow environments.

Spectrum Options

The TotalGrow UCL 150 offers two carefully engineered spectrum options designed specifically for undercanopy applications. The High-Red spectrum (80% red, 3.0 µmol/J) maximizes photosynthetic efficiency and flowering response in lower canopy layers, while the Mid-Red spectrum (50% red, 2.8 µmol/J) provides balanced full-spectrum support for more comprehensive plant development. Both options complement top lighting, such as the TotalGrow 345W High Intensity Bar, to ensure every layer of your canopy receives the optimal wavelengths for maximum yield and quality, and can be further enhanced with supplemental bars like the TotalGrow UVA 30W bar.

TotalGrow UCL 150W High-Red Spectrum

High-Red Spectrum (80%)

TotalGrow UCL 150W Mid-Red Spectrum

Mid-Red Spectrum (50%)

TotalGrow UCL 150W Spectrum Comparison Chart

Spectrum Comparison

What's Included

  • 1x Undercanopy Light Bar
  • 1x 120V or 240V Plug
  • 1x Dimming Cord (if option is selected)

Specifications

Specification Value
Power Consumption 150-152W
Output 421-457 µmol/s
Efficacy 2.8-3.0 µmol/J
Spectrum Options Mid-Red (50%) or High-Red (80%)
Dimming 0-10V
Dimensions 43" L x 2.3" W x 2.5" H
Weight 5 lbs
Input Voltage 120-277V
Daisy-Chain Limit 8 (120V) / 15 (240V) / 18 (277V)
Lifetime 50,000 hours
Waterproof Rating IP65
Certifications ETL, DLC (pending)
Applications Undercanopy lighting, side lighting, moderate-intensity greenhouse top lighting, high-intensity small grow racks

Support & Manuals

Warranty

The TotalGrow UCL 150 is backed by a comprehensive 5-year warranty, ensuring reliable performance and assistance throughout the lifetime of your undercanopy lighting system.

FAQ

How does undercanopy lighting improve yields?+

Undercanopy lighting penetrates lower plant layers that traditional top lighting cannot reach effectively, enabling photosynthesis throughout the entire canopy. This results in increased bud development, improved bud grades, and higher overall yields from previously underproductive lower growth zones.

Which spectrum should I choose for my application?+

Choose the High-Red spectrum (80% red, 3.0 µmol/J) for maximum flowering response, which can be further enhanced with a targeted Deep Red Grow-Booster for peak results. The Mid-Red spectrum (50% red, 2.8 µmol/J) provides more balanced full-spectrum support and is ideal when you want broader wavelength coverage to complement your top lighting setup. You can learn more about the differences in our guide to full spectrum vs. red and blue grow lights.

How do I install the UCL 150 bars?+

The 1-pack configuration includes two light stands that allow quick, tool-free installation. Simply position the stands at your desired location within the canopy, place the light bar, and connect the included power and dimming cords. The compact 2.3-inch width makes the bars easy to position and work around in crowded growing spaces.

Can I link multiple UCL 150 fixtures together?+

Yes, the UCL 150 supports daisy-chaining with capacity varying by voltage: up to 8 units on 120V, 15 units on 240V, or 18 units on 277V. This allows you to cover large canopy areas with simplified power distribution and synchronized dimming control across all connected fixtures.

What's the difference between the 1-pack and bar-only options?+

The 1-pack includes everything needed for immediate installation: the light bar, 120V plug, dimming cord, and two mounting stands. The bar-only option provides just the fixture itself, ideal for growers who already have mounting hardware and cords from previous purchases or prefer custom installation solutions.

Is this light suitable for high-humidity environments?+

Absolutely. The UCL 150 features an IP65 waterproof rating, providing complete protection against dust and water jets from any direction. This rugged design ensures reliable operation even in the humid conditions typical of flowering rooms and canopy interiors.

How do I control the light intensity?+

The UCL 150 features 0-10V dimming control via the included dimming cord (1-pack) or optional RJ12 cable. This allows you to adjust light intensity from 0-100% to match your plants' needs at different growth stages or to balance undercanopy lighting with your top lighting intensity.

Can I use the UCL 150 for applications other than undercanopy lighting?+

Yes, the UCL 150 is versatile enough for several applications including side lighting for vertical canopy coverage, moderate-intensity top lighting in smaller greenhouses, and high-intensity lighting for compact grow rack systems, including those used for seedlings and clones which can also benefit from specialized fixtures like the TotalGrow Stratum 10 3-pack. The efficient output and compact form factor make it adaptable to various growing configurations.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

Why Trimleaf

Equipping home growers, craft producers, and commercial operations across North America since 2016.

10+
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Over 1,900 Verified Reviews
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