Growlink LINKS Digital LightLINK Lighting Controller — 24VDC Full Spectrum Control with Sunrise & Sunset Simulation

Full-Spectrum Digital Lighting Control with Sunrise, Sunset, and Zone-Level Precision

The Growlink™ LINKS Digital LightLINK Lighting Controller connects Growlink automation systems to leading horticultural lighting fixtures, delivering precise digital control over light intensity, spectrum, and timing for every phase of the growth cycle. Operating on 24VDC at 1A and 3W, it supports advanced lighting programs including sunrise and sunset simulation, high-temperature protective dimming, and independent zone-specific adjustments — enabling cultivators to create the nuanced light environments that drive optimal plant development.

Compatible with top horticultural lighting brands including ThinkGrow, Dutch Lighting Innovations (DLI), Phantom PX Digital, Synce, and Fohse via RJ-12 and terminal block connections, the Digital LightLINK offers broad fixture compatibility with centralized management through the Growlink platform. Its full-spectrum control capability and flexible connectivity make it the preferred choice for operations where precise, automated light management is central to cultivation performance. Made in the USA.

Key Features & Benefits

• Full-spectrum digital control — independently adjusts light intensity and spectrum for precise management of the photosynthetic environment at every growth stage.
• Sunrise and sunset simulation — gradually ramps light intensity up and down to mimic natural transitions, reducing plant stress and supporting healthy circadian rhythms.
• High-temperature dimming — automatically reduces light output when canopy temperatures exceed safe thresholds, protecting crops from heat stress without manual intervention.
• Zone-specific adjustments — enables independent lighting programs for different crop zones within the same facility for tailored growth management.
• Broad fixture compatibility — connects to ThinkGrow, DLI, Phantom PX Digital, Synce, Fohse, and other leading brands via RJ-12 and terminal block inputs.
• Growlink OS integration — all lighting schedules, automation rules, and real-time adjustments are managed centrally through the Growlink platform.
• Made in the USA — engineered to professional cultivation standards for reliable long-term performance.

Who Should Use the Growlink Digital LightLINK

The Digital LightLINK is the ideal controller for commercial indoor cultivators running digital-protocol horticultural fixtures who need advanced lighting automation beyond basic on/off scheduling. It is particularly valuable in operations where photoperiod precision, spectrum management, and temperature-responsive dimming are key to maximizing yield quality and consistency — and for facilities running multiple fixture brands that require a single unified controller interface.

Advanced Lighting Automation for Precision Indoor Cultivation

Lighting is the most energy-intensive input in indoor cultivation and one of the most powerful levers for influencing plant physiology. The Digital LightLINK's sunrise and sunset simulation aligns the light environment with natural plant rhythms, while high-temperature dimming provides an automatic safety layer that protects crops during periods of elevated canopy heat — a common challenge in dense, high-intensity growing environments. Integrated with Growlink's climate and sensor data, lighting responses can be coordinated with HVAC, CO₂, and dehumidification systems to create a fully optimized cultivation environment.

Frequently Asked Questions

What lighting fixture brands are compatible with the Digital LightLINK?

The Digital LightLINK is compatible with ThinkGrow, Dutch Lighting Innovations (DLI), Phantom PX Digital, Synce, and Fohse fixtures via RJ-12 and terminal block connections. Contact Growlink support to confirm compatibility with other fixture brands.

How does sunrise and sunset simulation benefit plant growth?

Gradual light transitions mimic natural dawn and dusk, reducing the physiological stress that abrupt light changes can cause. This supports healthier plant development, more stable stomatal responses, and better alignment with the plant's internal growth cycles.

What is high-temperature dimming and how does it work?

High-temperature dimming automatically reduces light output when canopy temperatures rise above a set threshold. This protects crops from heat stress during periods when HVAC systems may not fully compensate for lighting heat load, preserving crop quality without requiring manual intervention.

Does the Digital LightLINK require a Growlink HUB?

The Digital LightLINK integrates with the Growlink LINKS platform. A Growlink HUB or compatible LINKS infrastructure is required to connect the controller to Growlink OS for scheduling, automation, and remote management.

What is the difference between the Digital LightLINK and the 4 Channel LightLINK?

The 4 Channel LightLINK uses analog 0-10V outputs to control up to 4 zones of 50 fixtures each with standard dimming. The Digital LightLINK uses digital protocols (RJ-12/terminal block) for advanced control including sunrise/sunset simulation, full-spectrum management, and high-temperature dimming — suited to digital-protocol fixtures from specific compatible brands.