Growlink quadLINK 4-Channel Controller for Centralized Device Switching
The Growlink quadLINK 4-Channel Controller drives four NEMA 5-15R receptacles independently at 6A per outlet and 9A combined. Each receptacle accepts standard 120VAC plug-in equipment — irrigation pumps, CO2 valves, circulation fans, and lighting trigger cords run on the same module. The unit attaches to a Growlink HUB over the included 10-foot RJ-45 cable. Data flows through the HUB rather than its own WiFi radio. Built for 100,000 switching cycles with a Made-in-USA build. The controller sits inside the 50–122°F (10–50°C) and 0–75% RH non-condensing range for typical greenhouse and indoor environments.
Pairing the 4-Outlet Relay Controller With Grow-Room Loads
Map each receptacle to one device class so the wiring stays predictable: pumps on outlet 1, CO2 on 2, fans on 3, lights on 4. Place the controller within the 10-foot cable reach of the HUB and adjacent to the device cluster it switches. The 9A combined ceiling is the constraint worth planning around. Four high-draw devices summing past 9A will overload the module. Reserve heavy lighting loads for a separate quadLINK or a powerLINK with its 15A budget. The 4-outlet relay controller carries a 100,000-cycle contact rating, which translates to multiple years of typical scheduled operation before any switching wear shows. For sensor-triggered modes, the trigger logic lives in Growlink OS. The quadLINK itself is the actuator, not the brain — firmware updates land on the HUB rather than the module.
Key Features
- 4× NEMA 5-15R Receptacles (6A Each / 9A Combined): Independent 120VAC switching for pumps, CO2 valves, fans, and lighting trigger cords within the module's combined load budget.
- 100,000-Cycle Contact Rating: Built for multi-year scheduled operation in continuous-duty grow environments.
- Growlink HUB Integration: Connects via the included 10-foot RJ-45 cable and exposes all four channels to Growlink OS for scheduling, alerts, and remote control.
- Manual, Schedule, or Sensor-Triggered Modes: Switch by hand from the app, on a timer, or based on environmental sensor inputs feeding the HUB.
- Made in the USA: Built for demanding greenhouse and indoor environments with serviceable construction.
Technical Specifications
| Specification | Value |
|---|---|
| Input Power | 120VAC (15A branch-protected circuit) |
| Outputs | 4× NEMA 5-15R receptacles |
| Per-Receptacle Rating | 6A |
| Combined Load | 9A max |
| Contact Life | 100,000+ cycles |
| Operating Temperature | 50–122°F (10–50°C) |
| Operating Humidity | 0–75% RH (non-condensing) |
| Dimensions | 7.75" × 7.75" × 3.75" |
| Connectivity | RJ-45 to Growlink HUB |
| HUB Required | Yes (sold separately) |
| Mounting | Vertical wall surface with included bracket |
| Included Hardware | Mounting kit, 10-foot RJ-45 cable |
| Country of Origin | Made in USA |