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Long silver & green 660W LED grow light bar with numerous white LEDs, a hanging hook, for plant cultivation.
Slanted view of a TotalGrow 660W high-intensity LED grow light bar with reflector, mounted to a metal channel.
Side view of a green and silver bar LED grow light, featuring a long square metal top, chrome frame, and green lower housing.
TotalGrow 660W High Intensity Bar LED Grow Light system, silver with green ends, suspended from a white rail.
TotalGrow LED grow light spectrum chart, showing photonic distribution with peaks in blue (450nm) and deep red (660nm).
Long silver & green 660W LED grow light bar with numerous white LEDs, a hanging hook, for plant cultivation.
Slanted view of a TotalGrow 660W high-intensity LED grow light bar with reflector, mounted to a metal channel.
Side view of a green and silver bar LED grow light, featuring a long square metal top, chrome frame, and green lower housing.
TotalGrow 660W High Intensity Bar LED Grow Light system, silver with green ends, suspended from a white rail.
TotalGrow LED grow light spectrum chart, showing photonic distribution with peaks in blue (450nm) and deep red (660nm).

TotalGrow High Intensity Top-Light 660W Bar LED Grow Light

Reduced Price:
$707.00 USD $647.00 USD$707.00 USD
Or
Pay as little as
$64700/mo
for a term that suits you, up to 36 months. Learn More

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MODEL: TG64B4-1pk
Order today, ships between April 1 - April 16, 2026
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About TotalGrow High Intensity Top-Light 660W Bar LED Grow Light

Full Spectrum

Type

660W

Power

Coverage

5 Years

Warranty

TotalGrow High Intensity Top-Light 660W Bar LED Grow Light

Struggling with excessive shadowing and inefficient energy consumption in your commercial greenhouse? The TotalGrow High Intensity Top-Light 660W Bar offers a powerful, streamlined solution designed to maximize photosynthetic light while minimizing the footprint in your growing space.

As a higher-output alternative to the TotalGrow 345W High Intensity Top-Light, this fixture delivers exceptional efficacy for commercial cultivation. Whether you are a greenhouse grower or an indoor cultivator, this 660W powerhouse provides up to 1865 μmol/s of light output with efficacy ratings reaching 2.9 μmol/J in the high-efficiency model.

The narrow-profile body (43" x 3" x 4") is engineered to create minimal shadows in greenhouse applications. For streamlined installations, the daisy-chain capability allows you to connect up to 4 units on 240V systems, significantly reducing electrical complexity and setup costs. Built to IP66 waterproof standards with ETL and DLC certifications, this fixture ensures reliable performance in high-humidity environments for over 50,000 hours.

What's Included

  • HI-Top 660W light bar
  • 100-277V driver
  • 4 hanging hardware attachments
  • Installation guide

Features

🚀
Superior Light Output

Delivers up to 1865 μmol/s with 2.9 μmol/J efficacy, maximizing yields while minimizing energy costs.

📏
Streamlined Design

Compact 43" x 3" x 4" profile minimizes shadowing in greenhouse applications while weighing only 17 lbs.

💡
Optional Side Reflectors

Customizable edge lighting with side reflector add-ons, or boost specific spectrums with a TotalGrow Deep Red Grow-Booster for uniform distribution and optimized growth.

🔌
Simplified Installation

Daisy-chain up to 4 units on 240V systems with integrated 0-10V dimming for precise light control.

Applications

The TotalGrow HI-Top light bar is specifically engineered for commercial cultivation environments, including:

Specifications

Specification Value
Power 660W
Output (BF / HE) 1685 µmol/s / 1865 µmol/s
Efficacy (BF / HE) 2.5 µmol/J / 2.9 µmol/J
Dimensions 43" long x 3" tall x 4" wide
Weight 17 lbs
Dimming 0-10V + 12V aux power
Daisy-Chain (120V / 240V) Up to 2 units / Up to 4 units
Lifetime 50,000 hours
Waterproof Rating IP66
Certifications ETL, DLC

Warranty

The TotalGrow High Intensity Top-Light 660W Bar comes with a comprehensive 5-year manufacturer's warranty against defects in materials and workmanship under normal use conditions, ensuring long-term reliability for commercial growers.

FAQs

How many TotalGrow 660W bars can I daisy-chain?+

On a 240V system, you can connect up to 4 units together. On a 120V system, the limit is 2 units to ensure electrical safety and performance.

Is this light suitable for high-humidity greenhouses?+

Yes, the fixture features an IP66 waterproof rating, which means it is protected against powerful water jets and is ideal for the humid conditions of commercial greenhouses.

What is the difference between the BF and HE models?+

The Standard (BF) model offers a 2.5 µmol/J efficacy, while the High-Efficiency (HE) model delivers a superior 2.9 µmol/J, providing more light output for every watt of electricity consumed.

Does the design help prevent shadowing?+

Yes, the streamlined 3-inch tall profile is specifically engineered to minimize the shadow cast on your plants, allowing more natural sunlight to reach the canopy in greenhouse setups.

Does it include hanging hardware?+

Yes, each TotalGrow 660W Bar comes with 4 hanging hardware attachments to simplify the installation process right out of the box.

Shipping & Returns

Order Processing & Shipping

We currently ship within the United States only. No international shipping is available at this time.

Order Processing:

  • Most orders are processed within 24-48 hours after being placed.
  • Some products may have extended processing times of 7-14 business days or more, which will be clearly indicated on the product page. If your order includes such items, you will receive an email from our team or be contacted directly to confirm the estimated shipping timeframe.

Shipping Times:

We partner with reliable national carriers to deliver your orders. While specific delivery times can vary, here's a general timeframe for each carrier:

  • USPS: Typically delivers between 9:00 AM and 5:00 PM, Monday through Saturday.
  • FedEx: Typically delivers between 8:00 AM and 8:00 PM, Monday through Friday, with some Saturday deliveries.
  • UPS: Typically delivers between 9:00 AM and 7:00 PM, Monday through Friday, with some Saturday deliveries.

Note:

  • These are estimated delivery hours and may vary depending on your location and specific delivery circumstances.
  • For the most accurate delivery information, please refer to the tracking details provided once your order has shipped.

Free Shipping

Free shipping on qualified items to the lower 48 states. Some that are not eligible are stated on their respective product information page. Learn more

Refunds & Returns

Cancellations are accepted within 24 hours of placing an order.
Returns are subject to each manufacturer's return policy. Please look into the return policy of the brand prior to ordering. Learn more

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