Lighting Adapter RJ45

What It Is

The Growlink RJ45 Dimming Adapter is a purpose-built interface that connects grow lights equipped with standard 8-pin RJ45 dimming ports to Growlink's Core Controllers and LINKS automation modules. It fills the connectivity gap between fixtures that output on the Ethernet-style RJ45 dimming standard — including models from Fluence, Luxx, and a broad range of commercial LED manufacturers — and the Growlink platform's centralized control environment.

Rather than splicing wires or sourcing custom cables, operators seat the adapter into the fixture's existing dimming port and route to the Growlink LINKS hub or digital lightLINK module. The adapter translates the control signal, allowing the Growlink OS to drive intensity adjustments the same way it manages any other lighting zone on the system.

Who Needs It

This adapter is a required accessory for any licensed cannabis or hemp operator who is running Growlink automation and has LED fixtures that dim over an RJ45 interface. If your canopy fixtures use that 8-pin Ethernet-style dimming port and you want them under Growlink OS control — scheduled dimming, environmental triggers, sunrise/sunset ramping, high-temp dimming responses — this is the piece that completes the wiring path.

It is equally relevant to operators retrofitting an existing room into a Growlink-managed facility. If the fixtures are already hung and wired for dimming via RJ45, this adapter avoids any fixture-side modification. It is also the right call for multi-room builds where zone-level lighting schedules and intensity profiles need to be replicated consistently across rooms from a single Growlink dashboard.

Key Features

Plug-and-play connection: the adapter seats directly into the fixture's RJ45 dimming port and into the Growlink LINKS or Core Controller — no rewiring, no custom programming required at the hardware level. Compatible with Growlink Core Controllers and LINKS modules interchangeably.

Fits the standard 8-pin Ethernet-style dimming ports found on many commercial LED grow light lines, giving it broad fixture coverage across the market. Once connected, it unlocks the full set of Growlink OS lighting controls: manual intensity adjustment, schedule-based dimming, automated environmental responses (high-temp dimming, adaptive light intensity), and sunrise/sunset ramping to manage daily light integral and reduce plant stress at photoperiod transitions.

Built for continuous operation in commercial grow environments — the adapter is engineered to hold up under the humidity, heat, and 24/7 duty cycles typical of licensed indoor cultivation.

How It Fits a Growlink Build

In a standard Growlink LINKS build, every device — climate sensors, irrigation modules, lighting controllers — runs through the LINKS 8-Port HUB. The digital lightLINK module is the hub-side lighting interface, and it connects to fixtures via RJ-12 or terminal block. The RJ45 Dimming Adapter extends that reach to fixtures using the RJ45 dimming standard, without requiring a different controller or workaround.

For operators on Growlink Core Controller setups, the adapter similarly bridges RJ45-ported fixtures into the Core's lighting control layer. Either way, the fixture becomes a managed zone inside Growlink OS — intensity, schedule, and automation rules set once and executed automatically, room after room. One adapter is typically required per fixture or per daisy-chained fixture group, depending on how your dimming circuit is configured. Confirm fixture wiring topology before ordering quantities for a multi-light zone.