- HI-Top 345W light bar
- 100-277V driver
- 4 hangers
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TotalGrow High Intensity Top-Light 345W Bar LED Grow Light
starting from 0% interest financing from
/mo.
- Delivers 907µmol/s total output with 2.6 µmol/J efficacy.
- Narrow profile design minimizes canopy shadowing in commercial setups.
- Daisy-chain up to 8 units on 240V circuits to simplify power and dimming control.
- 5-year warranty
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VOLUME PRICING
Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
- You are upgrading to a high-intensity lighting solution because your current canopy struggles to get enough light density without overheating the room.
- You are looking for a reliable, streamlined bar light because you need to maximize coverage in a commercial footprint without creating excessive structural shadows.
- The optional side reflectors attach with screws to the lamp strip, which helps keep light uniform at the canopy edges.
- Commercial growers who switched to this bar configuration say they stopped struggling with light intensity drop-offs at their crop perimeter.
- Operators who daisy-chained their circuits report they cut down their total installation time by skipping redundant wiring to every fixture.
TotalGrow High Intensity Top-Light 345W Bar LED Grow Light
Struggling to achieve maximum photosynthetic intensity without excessive heat or energy waste? The TotalGrow High Intensity Top-Light 345W Bar is a professional-grade solution engineered to optimize plant growth in commercial greenhouses and indoor facilities. By delivering high-output lighting in a narrow, streamlined profile, this fixture ensures your canopy receives the energy it needs while minimizing structural shadowing.
For growers requiring even greater coverage for larger footprints, the TotalGrow High Intensity Top-Light 660W Bar LED Grow Light offers a higher-output alternative. This 345W model remains a favorite for its exceptional 2.6 µmol/J efficacy and 907µmol/s total output, making it an efficient choice for sustainable cultivation.
The fixture's durable design features an IP66 waterproof rating and holds both ETL and DLC certifications, ensuring long-term reliability in humid grow environments. With a 50,000-hour lifetime and a 5-year warranty, it provides the performance and peace of mind necessary for commercial success.
What's Included
Features
⚡
High-Efficiency Output
Delivers 907µmol/s with 2.6 µmol/J efficacy, maximizing light while minimizing energy consumption.
🔗
Simplified Installation
Daisy-chain up to 8 units on 240V circuits with 0-10V dimming control for a clean, streamlined setup.
◤
Uniform Coverage
Optional side reflectors ensure even light distribution to plants at the edges, maximizing canopy uniformity.
🌿
Full Spectrum Power
Promotes healthy growth across all stages; compatible with the TotalGrow UVA 30W or Deep Red Grow-Booster.
Applications
The TotalGrow High Intensity Top-Light is specifically designed for top-lighting in commercial greenhouses and indoor farms. Its narrow profile is ideal for mounting to existing structures where minimizing shadowing is critical. For lower-intensity applications or vertical racks, the TotalGrow Mezzo 100W 44" LED Grow Light Bar provides a versatile alternative. For a comprehensive 360-degree lighting strategy, pair this fixture with the TotalGrow UCL 150W Under Canopy LED Grow Light to illuminate lower foliage and maximize overall yield, as detailed in our guide on the best under-canopy lighting.
TotalGrow High Intensity Top-Light 345W Bar Specifications
| Specification | Value |
|---|---|
| Power | 345W |
| Output | 907µmol/s |
| Efficacy | 2.6 µmol/J |
| Dimensions | 25" L x 3" H x 4" W; 10 lbs |
| Dimming | 0-10V + 12V aux power |
| Daisy-Chain Linking | Up to 4 units (120V) / 8 units (240V) |
| Lifetime | 50,000 hours |
| Waterproof Rating | IP66 |
| Certifications | ETL, DLC |
Spectrum Analysis
Support & Manuals
Warranty
The TotalGrow High Intensity Top-Light 345W Bar is backed by a comprehensive 5-year manufacturer warranty, protecting your investment against defects in materials and workmanship under normal use conditions.
FAQs
How many 345W bars can I daisy-chain?
You can daisy-chain up to 4 units on a 120V circuit or up to 8 units on a 240V circuit. A high-voltage version is also available for up to 16 units on a 480V circuit.
Is this light suitable for high-humidity environments?
Yes, the fixture features an IP66 waterproof rating, making it ideal for the demanding, high-humidity conditions found in commercial greenhouses.
What is the efficacy of this grow light?
The TotalGrow 345W Top-Light delivers an exceptional efficacy of 2.6 µmol/J, providing high light output with minimal power consumption.
Does it include mounting hardware?
Yes, each unit comes with 4 hangers for easy installation onto your existing greenhouse or indoor support structures.
Can I dim these lights?
Yes, the fixture supports 0-10V dimming and includes 12V auxiliary power for integration with most grow light controllers.
What stages of plant growth is this light for?
The full-spectrum output is designed to support plants through all stages of growth, from vegetative to flowering.
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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.)
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