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

Simulate Natural Sunrise and Sunset Cycles With Full-Spectrum Digital Control

Abrupt lighting transitions can stress plants, and basic on/off timers offer no way to soften that transition or protect a canopy from overheating. The Growlink LINKS Digital LightLINK Lighting Controller runs on 24VDC to deliver full-spectrum digital control over compatible horticultural fixtures, gradually ramping intensity up and down to simulate sunrise and sunset rather than switching lights abruptly.

Built-in high-temperature dimming automatically pulls back light output when canopy temperatures climb too high, and independent zone-level adjustments let different rooms run their own programs from the same controller, all connecting to compatible fixtures via RJ-12 or terminal block inputs.

Key Features & Benefits

• Sunrise & Sunset Simulation: Gradually ramps intensity up and down rather than switching fixtures on and off abruptly.
• High-Temperature Protective Dimming: Automatically reduces output when canopy temperature climbs above a set threshold.
• Zone-Specific Programs: Runs independent lighting schedules for different rooms or zones from a single controller.
• Digital Fixture Connectivity: Connects to compatible digital-protocol fixtures via RJ-12 or terminal block inputs.
• Growlink OS Scheduling: All programs, ramps, and zone assignments are managed centrally through the Growlink platform.

Who Should Use This

Commercial cultivators running digital-protocol horticultural fixtures who want gradual sunrise/sunset transitions and automatic heat-triggered dimming, rather than basic on/off scheduling, are the direct fit for the Digital LightLINK, particularly multi-fixture-brand facilities wanting one unified controller.

About Growlink

Growlink, founded in 2015, builds lighting control hardware within its broader LINKS ecosystem, unifying fixture management under a single Growlink OS platform.

Frequently Asked Questions

How gradual is the sunrise and sunset simulation?

The ramp duration and curve are configurable within Growlink OS rather than fixed, so growers can set transitions that fit their specific photoperiod and fixture response. A gradual ramp is generally set over several minutes rather than an instant switch.

What triggers high-temperature dimming?

Once canopy temperature, typically tracked through a connected Growlink climate sensor, crosses a configured threshold, the controller automatically reduces light output. This protects crops from heat stress without requiring a manual response.

Does this controller require a Growlink HUB to operate?

Yes, a Growlink HUB or compatible LINKS infrastructure is needed to connect the Digital LightLINK to Growlink OS for scheduling and remote management. Without that connection the controller cannot receive schedule updates or report status back to the app.

How is this different from the 4-Channel LightLINK Controller?

The 4-Channel LightLINK uses analog 0-10V dimming for up to 200 fixtures across four zones with standard dimming curves. The Digital LightLINK instead uses digital fixture protocols to add sunrise/sunset simulation and high-temperature dimming, suited to compatible digital-protocol fixture brands rather than generic 0-10V dimmable drivers.