Treegers Fixture Link Cable — 4m Daisy-Chain Cable for Treegers LED Fixtures
TRG-ACC-CBL-4M
Pairs well with
If you're running more than one Treegers fixture from a single controller or dimmer, you need this cable. The Fixture Link Cable connects the signal output of one fixture to the signal input of the next, creating a daisy-chained series that lets your T Dimmer or Growcast talk to all of them at once. Four metres of IP67-rated cable, a self-locking LLT-M12 connector on each end, and a 2-year warranty. One cable per additional fixture — that's the whole story.
Tech Specs
What's in the Bag
- You need one Fixture Link Cable for each additional fixture beyond the first. Two fixtures = one cable. Three fixtures = two cables. And so on.
- The controller or dimmer connects to your first fixture directly — the Fixture Link Cable bridges from that fixture's signal output to the next fixture's signal input.
- Up to 50 Treegers fixtures can be linked in a single chain from one T Dimmer or Growcast.
- This cable is for the signal / dimming connection only — each fixture still needs its own power cable connected separately.
- Not sure how many you need for your setup? Ask The Grow Guys and we'll count it out with you.
How to Daisy-Chain Your Fixtures
Pairs Well With
Running two or more GL420W fixtures? You'll need one Fixture Link Cable per additional light to sync them from a single controller.
Treegers GL650W+ LED FixtureMulti-light rooms built around the GL650W+ use the same Fixture Link Cable to chain fixtures under one controller.
Treegers GL1000W+ LED FixtureRunning multiple GL1000W+ fixtures in a large room? Chain them all from one Growcast with Fixture Link Cables between each light.
Treegers Precise T DimmerThe T Dimmer drives the whole chain. Add Fixture Link Cables to extend its reach across multiple fixtures.
Treegers Growcast ControllerFor automated multi-light rooms, the Growcast pairs with Fixture Link Cables to control up to 50 fixtures on a single schedule.
Grow TentsLarger tents often benefit from two fixtures side by side. The 4m cable gives you enough reach for most tent configurations.
Frequently Asked Questions
How many Fixture Link Cables do I need for my setup?
You need one cable per additional fixture beyond the first. Two fixtures requires one cable. Three fixtures requires two cables. The controller always connects directly to the first fixture — the Fixture Link Cables handle signal between all subsequent fixtures in the chain.
Does this cable carry power as well as the dimming signal?
No — the Fixture Link Cable carries the control signal only. Each fixture in the chain still requires its own separate power cable connected to a mains outlet. Do not attempt to power fixtures through the Fixture Link Cable.
Is the Fixture Link Cable compatible with both the T Dimmer and the Growcast?
Yes — the Fixture Link Cable works with both the Treegers Precise T Dimmer and the Treegers Growcast controller, as well as any other controller using the same LLT M12 3-pin connector and 0–10V signal standard.
Will this cable work with non-Treegers LED fixtures?
Yes, potentially — the cable is compatible with any fixture that uses an LLT M12 3-pin connector with the standard 1PIN-Dim+ / 2PIN-Dim- / 3PIN-12V pinout. Not all brands use this connector, so check your fixture's control port spec before purchasing.
Is 4 metres long enough for most grow setups?
Yes, for the majority of tent-based setups. The 4-metre length comfortably spans two fixtures mounted side by side in a 1.2m or larger tent, with cable to spare for routing around obstacles. For very large commercial rooms where fixtures are spread further apart, check your fixture spacing before ordering.
How many fixtures can I chain together in total?
Up to 50 Treegers fixtures can be linked in a single chain from one controller or dimmer. If you're planning a large multi-light room, contact The Grow Guys to confirm your cable and controller requirements before you set up.
One Cable Per Fixture. Every Light in Sync.
The Fixture Link Cable is the missing piece in any multi-light Treegers setup. Not sure how many you need or how to wire your room? The Grow Guys team will count it out with you.