Extend Flexstar control runs where the standard cable won't reach.
The Flexstar M12 Extension Cable (3-Pin/C3, 10 ft) adds reach to your control wiring on Flexstar LED systems — purpose-built for the brand's daisy-chain architecture so dimming and spectrum control signals pass through cleanly across the full run.
Flexstar's commercial LED fixtures use a daisy-chain control architecture to distribute dimming and, on SpecTune models, multi-channel spectrum commands across a room of fixtures from a single controller connection. The control signal travels fixture-to-fixture through M12 circular-connector cables. When fixture spacing, ceiling height, or row geometry puts fixtures beyond the reach of the included cable, you need a purpose-matched extension — that's this part.
The M12 Extension Cable (3-Pin/C3, 10 ft) uses the same M12 circular locking connector format as the rest of the Flexstar control wiring ecosystem. The 3-pin C3 configuration carries the control signal required for 0–10V dimming and compatible control protocols used across Flexstar's LED lineup. Plug-and-play installation: mate the connectors, hand-tighten the locking ring, and the chain picks up where it left off.
In a tightly packed commercial canopy, standard inter-fixture cable lengths cover most runs. Problems arise at row ends, around environmental equipment, across aisle gaps in multi-tier vertical systems, or any time you need to re-route cabling away from a hot zone or water source. A 10-foot extension gives you enough additional reach to clear most of those obstacles without splicing or improvising with non-rated cable.
Facilities running Flexstar fixtures in large-scale deployments — commercial greenhouses, indoor cannabis cultivation rooms, vertical farms — regularly keep spare extension cables on hand for layout changes mid-cycle or as part of a preventive maintenance kit. A single broken or damaged control cable in a daisy chain can interrupt dimming across every downstream fixture in that channel, so having the right replacement stocked matters.
Flexstar has been manufacturing commercial horticultural lighting since 2009 and its current LED lineup — including the RedLine, PRO, Under Canopy, and Interlighting series — shares a common control wiring standard based on M12 circular connectors. The 3-pin/C3 configuration on this cable aligns with that control interface. Verify your specific fixture model's control port configuration before ordering if you are integrating across multiple product generations.
Flexstar fixtures carry IP66-rated environmental protection, and the control cabling is designed to hold up in the same high-humidity, high-cleaning-frequency environments those fixtures operate in. Grow rooms with frequent fertigation spray, high VPD management cycles, and regular washdowns put connectors and cables under stress that standard commercial cabling isn't rated for — Flexstar's own accessory cables are specified for that environment.
This cable is a direct Flexstar accessory (SKU 10-010704-408), not an aftermarket substitute. Hydro Supply Co. carries the full Flexstar accessories catalog alongside Flexstar's fixture lines, so you can consolidate control cable orders with fixture purchases, controller hardware, and any other Flexstar components into a single account relationship.
If you are unsure whether this is the correct cable for your controller or fixture model — particularly if you are running an X5 or similar multi-channel controller alongside a mixed fixture install — reach out before ordering. We can confirm compatibility against your specific Flexstar fixture SKUs and help you calculate how many extension cables your layout requires based on fixture spacing and row length.
| SKU | 10-010704-408 |
| Brand | Flexstar |
| Cable Length | 10 ft (approx. 3 m) |
| Connector Standard | M12 Circular, 3-Pin |
| Configuration | C3 (control signal) |
| Application | Control wiring extension for Flexstar LED daisy-chain systems |
| Catalog Category | Accessories & Cables |
| Site Section | Lighting & Cultivation |
This cable is designed for use with Flexstar LED systems that use the M12 3-pin/C3 control connector — which covers the majority of current Flexstar commercial fixtures including RedLine, PRO, Under Canopy, and Interlighting series. If you are running an older generation fixture or a multi-controller setup, confirm your fixture's control port spec before ordering.
Mechanically, M12 connectors can be chained. However, control signal integrity over very long daisy-chain runs depends on the total cable length and the number of fixtures downstream. Flexstar's controller specs define maximum channel lengths — consult those limits before extending beyond a single 10 ft addition to avoid dimming signal degradation.
This is a control cable, not a power cable. It carries the low-voltage control signal (used for dimming and spectrum commands on compatible fixtures) between fixtures in a daisy-chain or between a controller and the first fixture. It does not carry mains power to the fixture.
Only if your standard included cables don't reach. The included cables cover typical fixture-to-fixture spacing in a standard row layout. You'll need an extension when fixture spacing is wider than standard, when routing around equipment or obstacles, or when replacing a damaged cable mid-install.
Yes. Hydro Supply Co. carries Flexstar's fixture lines, controller hardware, and accessories including this cable under a single account. Bundling accessory and cable orders with fixture purchases simplifies procurement and keeps your project on a single PO.
Get operator-direct pricing and availability. We supply licensed commercial cultivators nationwide.
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