Fluence Whisper 2.0 Dimmer

Centralise and Simplify Fixture Dimming with the Fluence Whisper 2.0

The Fluence Whisper 2.0 Dimmer is a compact, powerful dimming controller that puts 0-100% light intensity management of up to 50 Fluence LED fixtures at your fingertips. Supporting 0-10V and PWM dimming protocols over up to 200ft of signal wire reach, the Whisper 2.0 integrates cleanly into commercial grow room control architectures - enabling energy-efficient light intensity adjustment across all growth stages from a single, easy-to-access control point. Its compact 3.92 x 3.43 x 1.35in footprint makes it easy to mount in panels, junction boxes, or wall enclosures without occupying valuable space.

Key Features & Benefits

• Controls up to 50 fixtures - A single Whisper 2.0 unit manages up to 50 compatible Fluence LED fixtures simultaneously, dramatically reducing the number of control points needed in large commercial arrays and simplifying daily light management operations.
• 0-100% full-range dimming - Provides smooth, continuous dimming from full intensity down to minimum output, enabling precise light recipes for each growth stage without switching fixtures off and on unnecessarily.
• 200ft signal wire range - The 200ft signal wire reach covers large grow rooms, multi-bay facilities, and long-run installations without requiring additional signal amplifiers or repeaters in most commercial layouts.
• 0-10V and PWM compatibility - Supports both 0-10V analogue and PWM dimming protocols, providing compatibility with a wide range of building management systems and third-party environmental controllers.
• 120V AC / 12V DC power input - Flexible power supply options allow the Whisper 2.0 to be powered from either 120V AC mains or a 12V DC source, making it adaptable to diverse panel and control cabinet configurations.

Who Should Use This

Commercial indoor cultivators and facility managers running Fluence LED fixture arrays who want centralised, precise dimming control without complex building automation systems. The Whisper 2.0 is particularly valuable in operations that dial in stage-specific light intensities, manage heat loads during peak summer temperatures, or want to reduce energy consumption during low-demand periods.

Compatibility

Compatible with Fluence LED fixtures that support 0-10V or PWM dimming, including SPYDR 2 series, VYPR 3, RAZRm, and other compatible Fluence models. Signal wire connections use the 3.5mm terminal block format (Fluence terminal block connector sold separately). Verify fixture compatibility and signal wire gauge requirements in Fluence's Whisper 2.0 installation documentation before deployment.

Frequently Asked Questions

Can the Whisper 2.0 be integrated with a building management system or environmental controller?

Yes - the Whisper 2.0's 0-10V output is compatible with most commercial building management systems and third-party environmental controllers that provide a 0-10V control signal, enabling automated dimming based on temperature, CO2 levels, or time-of-day schedules.

What happens if more than 50 fixtures need to be controlled?

For arrays exceeding 50 fixtures, additional Whisper 2.0 units can be deployed - one per zone of up to 50 fixtures. Each unit operates independently, so large facilities simply use one Whisper 2.0 per lighting zone or circuit.

Does the signal wire need to be a specific type or gauge?

Fluence recommends low-capacitance 2-conductor signal wire of the gauge specified in the Whisper 2.0 installation guide. Using the correct wire type and gauge ensures signal integrity over the full 200ft range and prevents dimming instability at long cable runs.

Can the Whisper 2.0 dim fixtures to zero, or is there a minimum output floor?

The Whisper 2.0 supports 0-100% dimming range, but individual Fluence fixtures may have a minimum dimming floor below which they turn off rather than continuing to dim. Refer to your specific fixture's dimming specification for the effective minimum output level.