Matrix M12 Daisy Chain/A3 - 15ft

What It Is

The Matrix M12 Daisy Chain Cable A3 is a fixture-to-fixture control cable purpose-built for Matrix LED grow light systems. The A3 designation identifies the 3-pin wiring configuration used on Matrix non-tunable spectrum LED fixtures — it is not interchangeable with the 4-pin A4 variant, so matching the right cable to the right connector port is essential before running a chain.

At 15 feet, this cable is the longer of the two available A3 lengths and is the right pick when fixture spacing is wider, row spans cover a larger bay, or overhead geometry makes the 10ft version a tight fit. Both ends terminate in M12 twist-lock connectors that seat mechanically rather than relying on friction — the collar twists and locks, keeping the connection secure through vibration, foot traffic, and humidity swings that would work a push-fit connector loose over time.

Who It's For

This cable is specified by facility managers, electrical contractors, and lighting integrators running Matrix LED fixtures across multi-light rows in licensed cannabis and hemp operations. Any install where a single controller or control signal needs to drive a full run of Matrix non-tunable LEDs — veg rooms, flower rooms, propagation bays, greenhouse supplemental lighting — requires a daisy chain cable between each fixture pair.

It is equally relevant for operators expanding an existing Matrix installation: adding fixtures to a row means adding the corresponding daisy chain cable to extend the control run. The plug-and-play design means the extension happens without tools, without crimping, and without downtime on the fixtures already online.

Key Features

M12 Twist-Lock Connectors: Both ends use the M12 locking collar. The connector twists and seats mechanically, eliminating the risk of an accidental pull or a vibration event breaking the control signal mid-run — a meaningful reliability difference in a grow environment where any interruption to the dimming or on/off signal affects the entire chained row simultaneously.

Moisture-Resistant Construction: The jacket and connector bodies are built for the condensation, humidity swings, and continuous-operation conditions common in indoor cultivation. Standard cable materials degrade and corrode over repeated cycles in high-humidity grow rooms; the A3 cable's construction is rated for that environment.

A3 3-Pin Configuration: Wired specifically for the fixture-to-fixture linking ports on Matrix non-tunable LED products. The A3 interface carries the control signal between fixtures in the chain — confirm your fixture model uses the A3 port before ordering. Matrix also produces the A4 (4-pin), B3/B4 (M12-to-RJ11/RJ12 adapter), and C3/C4 (extension) cables for other points in the same system.

How It Fits a Commercial Build

In a properly wired Matrix LED installation, the daisy chain cable is the backbone of zone-level light control. One cable runs from the control source or the first fixture's signal-out port to the signal-in port of the next fixture, and so on down the row. The A3 15ft gives you the span to handle wider fixture spacing without forcing the cable into a tight bend radius or routing it at an awkward angle.

For large commercial footprints — multi-tier vertical grows, long single-tier flower rows, or greenhouse installations with high bay spacing — having the correct cable length specified up front prevents field splicing, adapter workarounds, and the wiring errors that come with improvised solutions. Order one A3 15ft cable per fixture-to-fixture gap in your non-tunable Matrix LED rows. Pair with the Matrix M12 Daisy Chain A4 (15ft) wherever your fixtures use the 4-pin port, and with B3/B4 adapter cables where the chain terminates at an RJ11/RJ12 controller input.