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The ICL-300 is a 4-foot, full-spectrum inner-canopy bar with diodes on three sides that emit light across roughly 300 degrees. It carries its own built-in 120W driver, so it runs as a self-contained unit: it lies flat within the canopy on the TSD-1 stand to light the lower and mid bud sites that overhead fixtures cannot reach. Use it inside a ThinkGrow Model One setup or as a standalone inner-canopy light under any overhead fixture. Choose your power cord below.
The ICL-300 carries its own built-in 120W driver, so unlike the overhead TLB bars it does not need a separate driver. You add it to light the lower and mid bud sites that overhead light misses.
These are starting points. Use the higher end for dense or heavily trellised canopies, and pair the ICL-300 with overhead bars for full top-to-bottom coverage.
The ICL-300 emits full-spectrum light across three sides, roughly 300 degrees, from inside the canopy. Its built-in 120W driver runs it on its own, and it accepts the same optional TrolMaster control as the rest of a Model One group when you want automated dimming and schedules.
Diodes on three sides push full-spectrum light across roughly 300 degrees from inside the canopy, reaching lower bud sites overhead bars miss.
White-based full-spectrum Samsung diodes deliver above 314 µmol/s PPF at 120W with an L90 rating beyond 54,000 hours.
The ICL-300 carries its own 120W driver, so it runs self-contained and daisy-chains to other ICL-300 units without a separate TLD driver.
Optional: pair it with a TrolMaster controller and the LMA-G adapter, and one interface runs dimming, spectrum, and daily light integral for the whole group.
The ICL-300 carries the same four-channel Samsung full spectrum as the overhead bars (white, deep red, far red, and UV), delivered from inside the canopy across a 300 degree angle. Its built-in 120W driver runs all four channels, so no separate TLD driver is needed.
ICL-300 spectral output across three efficacy-optimized recipes (up to 3.0 µmol/J), emitted at a 300 degree angle from inside the canopy.
| Spectrum channel | What it does |
|---|---|
| Full spectrum (white) | Samsung white-based base for photosynthesis across veg and flower |
| Deep red (660 nm) | Peak photosynthetic efficiency, drives flowering response |
| Far red (730 nm) | Shade-avoidance signal, can shorten flowering time |
| UV-A (385-400 nm) | Triggers protective stress responses and pigments |
All four channels run on the ICL-300's built-in 120W driver and daisy-chain with the overhead Model One bars; a TrolMaster controller can automate the blend across the room.
The TSD-1 stand and daisy-chain cords (TDC-2, TDC-3, or TDC-4) are ordered separately.
ThinkGrow backs the ICL-300 with a 5-year warranty. If a component fails, the support team diagnoses it by phone or email and ships replacement parts directly, so you do not take down the fixture or wait weeks for an RMA. Trimleaf is an authorized ThinkGrow retailer; this unit ships with the full manufacturer warranty, valid for the original purchaser.
No. Unlike the TLB bars, the ICL-300 carries its own built-in 120W driver, so it runs self-contained. You only choose a power cord above, or No Cord if you already have one.
Yes. Each ICL-300 has its own built-in driver, and you daisy-chain the units to one another with a TDC cord, then feed the group from a single power cord. Mount each on its own TSD-1 stand.
The TLB bars hang overhead and light the top of the canopy. The ICL-300 sits inside the canopy and throws light across three sides, roughly 300 degrees, to reach the lower and mid bud sites overhead light cannot. Run both together for full coverage.
No. The ICL-300 runs on its built-in driver on its own. A TrolMaster controller is optional: it lets one interface dim and schedule the ICL-300 alongside the rest of your lights.
A common starting point is one to two ICL-300 bars per overhead tier in dense or trellised flower. Size it to how much lower-canopy light your plants are missing.
Five years. ThinkGrow ships replacement parts directly after a phone or email diagnosis rather than requiring a full-fixture return, which keeps your room running during a repair.
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.)
Equipping home growers, craft producers, and commercial operations across North America since 2016.