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

A Two-Channel LED Bar Built Around Deep Red

Full-spectrum white light covers most of a plant's needs, but some growers want the option to push deep red supplementation independently rather than accepting a fixed blend. The ThinkGrow DR-1 is a 4-foot LED bar for the modular Model One system, built with SAMSUNG white-based full-spectrum diodes and a dedicated deep red channel that adjusts on its own.

Both channels can be adjusted using an onboard dimming knob or a connected TrolMaster controller, letting growers dial in spectrum recipes suited to different crops and growth stages without replacing hardware.

Key Features & Benefits

• SAMSUNG-Based Full-Spectrum Diodes — deliver a white spectrum base tuned for crop cultivation.
• Two Independent Channels — adjust full spectrum and deep red separately.
• Manual Dimming Knob — adjusts output directly on the bar without an external controller.
• TrolMaster Compatible — enables remote spectrum recipe control when connected.
• Pairs With a TLD-2 Driver — powers and controls the bar's two channels.

Who Should Use the DR-1

Growers who want a simpler two-channel setup emphasizing deep red supplementation, without the added complexity of a four-channel bar, are the intended users of the DR-1. It requires a separate TLD-2 driver, which is sold on its own rather than bundled with the bar.

About ThinkGrow

ThinkGrow, TrolMaster's lighting brand, builds the DR-1 around a focused two-channel design for growers who want deep red control without managing four separate channels. Pairing it with a TrolMaster controller keeps spectrum scheduling inside the same system already running a grower's climate control.

Frequently Asked Questions

What two channels does the DR-1 provide?

Full spectrum and deep red, each independently adjustable. That's a simpler setup than ThinkGrow's four-channel bars.

How do I connect the DR-1 to a TrolMaster controller?

Wire the paired TLD-2 driver into a compatible TrolMaster controller following the driver's setup instructions. Once connected, spectrum recipes can be adjusted remotely instead of only at the onboard knob.

Do I need a separate driver?

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

Can I dim it without a controller?

Yes, a manual dimming knob adjusts output directly on the bar. A connected TrolMaster controller adds remote and scheduled control on top of that.

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

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