- HI-Top 345W light bar
- 100-277V driver
- 4 hangers
TotalGrow High Intensity Top-Light 345W Bar LED Grow Light
starting from 0% interest financing from
/mo.
- 907 µmol/s output with 2.6 µmol/J efficiency
- Narrow profile design minimizes structural shadowing in greenhouses
- 100-277V driver with 0-10V dimming and daisy-chain capability
- 5-year warranty against defects in materials and workmanship
- 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.
Who This Is For
- You are mounting lights to existing trusses because bulky fixtures create shadows that stunt your crop.
- You are upgrading your layout because managing separate power drops for every light bar makes maintenance a mess.
- You are switching to high-intensity bars because your current setup produces too much heat for the output you need.
What We Found
- The narrow profile is the real winner since it lets you tuck these into rafters without blocking your top down sun.
- We noticed these run surprisingly cool for the intensity they put out, which keeps your HVAC from overworking.
- We trust the IP66 rating on these because the housing is sealed tight enough to handle direct spray during deep cleans.
What Users Say
- Commercial growers who switched to these say the daisy chain setup cut their electrical installation time by days.
- Facilities running these for years tell us they stopped worrying about light failures during the most critical weeks.
- Users who added the side reflectors say their edge plants finally match the quality of the center rows.
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.
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.)
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