ThinkGrow M-One 4' LED bar w/ White & FR Dual Channels

A Two-Channel LED Bar Built Around Far Red

Far-red light plays a specific, timing-sensitive role in plant development, one that's easy to miss with a fixed-spectrum fixture. The ThinkGrow FR-1 is a 4-foot LED bar for the modular Model One system, pairing full-spectrum white light with a dedicated far red channel that can be scheduled independently.

Targeted far-red exposure at specific times can help shift plant response, encouraging earlier flowering and supporting overall yield, and both channels adjust through an onboard dimming knob or a connected TrolMaster controller.

Key Features & Benefits

• Crop-Tuned SAMSUNG Diodes — form the bar's full-spectrum white base.
• Two Independent Channels — adjust full spectrum and far red separately.
• Direct Onboard Dimming — sets output manually right at the bar.
• TrolMaster Compatible — schedules targeted far-red exposure when connected.
• TLD-2 Driver Required — handles power and channel control for the bar.

Who Should Use the FR-1

Growers who want to use targeted far-red light to influence flowering timing, alongside standard full-spectrum coverage, are the intended users of the FR-1. It suits a grower who specifically wants far-red timing control rather than the broader four-channel spectrum flexibility of ThinkGrow's larger bars.

About ThinkGrow

ThinkGrow, TrolMaster's lighting brand, built the FR-1 to make far-red exposure a schedulable variable rather than a fixed part of a light's spectrum. Connecting the bar to a TrolMaster controller lets growers time that far-red exposure alongside the rest of a room's automated climate schedule.

Frequently Asked Questions

What two channels does the FR-1 provide?

Full spectrum and far red, each independently adjustable. That combination targets a specific plant response rather than a broad spectrum shift.

Do I need a separate driver?

Yes, the FR-1 pairs with a ThinkGrow TLD-2 driver, sold separately. The bar itself doesn't include integrated driver electronics.

How does far red affect my plants?

Targeted far-red exposure at specific times can shift plant response and support flowering. That's the specific effect this bar's dedicated channel is built to deliver.

What other LED bars work with the same driver as the FR-1?

The TLD-2 driver also works with the DR-1 and UV-1 LED bars from ThinkGrow. All three share the same two-channel driver platform.