4-pin M12 twist-lock daisy chain — one control signal across your entire Matrix fixture run.
The Matrix M12 Daisy Chain Cable A4 (15FT) links Matrix LED fixtures in sequence using a 4-pin M12 twist-lock interface, letting a single controller signal drive the full row. Plug-and-play on both ends — no crimping, no adapters, no tools.
The Matrix M12 Daisy Chain Cable A4 is a purpose-built fixture-to-fixture control cable for Matrix LED grow light systems. It carries the control signal from one fixture's output port to the next fixture's input port in sequence, allowing a single Matrix controller to govern dimming and operation across an entire row or zone of lights.
The A4 designation means this cable uses a 4-pin M12 connector configuration — distinct from the 3-pin A3 variant. Matrix LED and Hybrid fixtures that require an A4 interface at their control ports are not compatible with A3 cables. Using the correct cable for the correct connector keeps the chain clean and the signal intact. The 15FT length is sized for wider fixture spacing and longer bay runs where a 10FT cable would come up short.
Any licensed cannabis or hemp operator running Matrix LED fixtures in a commercial indoor or greenhouse environment will need daisy chain cables to wire their control topology. If you're commissioning a new room, expanding canopy in an existing facility, or replacing worn cables in a legacy Matrix installation, this cable is a required component of the system — not an optional upgrade.
Facilities using Matrix MC2 or MC5 controllers to automate lighting schedules and dimming levels across multiple zones depend on a clean, uninterrupted daisy chain. One bad cable connection breaks the signal to every fixture downstream. The 15FT A4 is particularly relevant in wider bay layouts — multi-tier vertical grows, long light-dep greenhouse bays, or rooms where fixture spacing exceeds what a 10FT run can bridge without a mid-span extension.
M12 twist-lock connectors seat mechanically at both ends, which means the connection stays established through humidity cycles, vibration, and the general movement of a working grow room. A friction-fit or push-in cable in the same environment will work loose over time; the M12 collar eliminates that failure mode.
Moisture-resistant construction throughout — jacket and connectors — handles the condensation and high-humidity conditions common in commercial cultivation without degrading the cable jacket or corroding the contacts over repeated wet-dry cycles. The A4 wiring configuration is specific to Matrix LED systems and is not cross-compatible with the A3 variant, so verifying your fixture's port type before ordering prevents a wasted trip to the room. Both ends are plug-and-play: connect output port to input port, seat the collar, done.
The A4 daisy chain cable sits within Matrix's broader M12 cable ecosystem, which also includes the A3 daisy chain, B3/B4 M12-to-RJ adapter cables, and C3/C4 extension cables. A complete Matrix LED control run typically starts at the controller, uses a B-series adapter to bridge the controller's RJ output to the first fixture's M12 port, then continues fixture-to-fixture with A-series daisy chain cables — A3 or A4 depending on the fixture model's port specification.
When building out or expanding a Matrix installation, spec the cable type to match the fixture port, then use cable length to match the physical bay layout: 10FT for tight clusters, 15FT for standard commercial fixture spacing. The chain can be extended incrementally as canopy expands without pulling new cable runs — just add fixtures and cables to the end of the existing chain. Contact HSC to confirm cable compatibility with your specific Matrix fixture model before ordering.
| SKU | 10-010704-377 |
| Brand | Matrix |
| Cable Length | 15 FT |
| Connector Type | M12 Twist-Lock, both ends |
| Pin Configuration | 4-Pin (A4 interface) |
| Application | Fixture-to-fixture daisy chain, Matrix LED systems |
| Installation | Plug-and-play, no tools or adapters required |
| Construction | Moisture-resistant jacket and connectors |
| Catalog Category | Accessories & Cables |
| Site Section | Lighting & Cultivation |
The A4 uses a 4-pin M12 connector configuration; the A3 uses a 3-pin configuration. These are not interchangeable — the cable must match the control port on your specific Matrix fixture model. Check your fixture's spec sheet or contact HSC before ordering to confirm which interface your units require.
The A4 daisy chain cable is designed for Matrix LED systems. Compatibility with Hybrid fixtures depends on the specific Hybrid model's control port specification. Contact HSC with your fixture model number to confirm compatibility before placing an order.
The number of fixtures per control chain depends on the specific Matrix fixture model and controller being used. As a reference point, the Matrix M6 645W supports up to 160 fixtures total chained to a single Matrix controller (up to 80 per controller port). Confirm the chain limit for your fixture model in its user manual or with HSC.
The 15FT cable is designed for wider fixture spacing and longer bay runs. If your fixtures are hung close together in a tight overhead cluster, the 10FT version may be sufficient and produces less cable management overhead. For standard commercial bay spacing or multi-tier vertical grow layouts where fixtures are spaced further apart, the 15FT provides the reach without requiring a mid-run extension cable.
Only if your fixture installation has a mix of A4-port and A3-port connection points — which would be unusual and would require verification against each fixture's spec. In a standard single-model installation, all daisy chain cables should be the same type. Mixing A3 and A4 where ports don't match will result in a failed connection at that junction.
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