PHOTOBIO VP White Cable Harness, 18AWG, 277V, L7-15P, 10′

The PHOTOBIO VP White Cable Harness (18AWG, 277V, L7-15P, 10′) is a plug-and-play power cable designed for PHOTOBIO VP LED grow fixtures. It enables power connection and disconnection at the fixture level, reducing electrical infrastructure costs and simplifying installation or maintenance in commercial growing operations.

PHOTOBIO VP White Cable Harness Specifications

This cable harness is configured for 277V installations using an 18AWG conductor and a NEMA L7-15P twist-lock plug. The 10-foot cord length provides adequate reach from ceiling electrical drops to fixture-mounted connectors in most commercial grow room layouts.

Specification	Value
Voltage	277V
Wire Gauge	18AWG
Plug Type	NEMA L7-15P (twist-lock)
Cable Length	10 feet
Fixture Connector	Mini IP (dust and liquid resistant)
Cable Type	UV resistant power cable
Included Hardware	4 mounting clips, screws, and zip-ties
Available Configurations	120V, 240V, 277V, bare wire (0-10V)
SKU	CHM108220W
Brand	PHOTOBIO (distributed by Hydrofarm)

Why Choose the PHOTOBIO VP White Cable Harness

Commercial growers running PHOTOBIO VP LED fixtures on 277V circuits need a cable that handles the electrical demands at that voltage while also being easy to connect and disconnect without involving an electrician every time. This harness is built specifically for that workflow.

• Plug-and-play at the fixture level: The harness lets you connect and disconnect power directly at the fixture, not at the panel. This reduces the labor cost of moving or servicing lights during a grow cycle.
• Mini IP connectors: The fixture-side connection uses Mini IP connectors rated as dust and liquid resistant, which matters in humid growing environments where moisture can damage standard electrical connections.
• UV resistant cable: The outer jacket is UV resistant, helping the cable hold up under high-intensity grow lighting without becoming brittle or cracking over time.
• Reduces electrical liability: By enabling disconnection at the fixture rather than the breaker, this harness reduces the risk of incidental contact with live circuits during routine light adjustments.
• Includes all mounting hardware: Four mounting clips, screws, and zip-ties are included so the cable can be routed cleanly along fixture bodies or grow room structures without additional purchases.
• Part of a complete line: Hydrofarm offers the PHOTOBIO VP harness in 120V, 240V, 277V, and bare wire (0-10V) configurations. If your facility uses multiple voltage circuits, matching harnesses are available for each.

For growers setting up or expanding a commercial lighting installation at 277V — a common voltage in commercial buildings because it reduces current draw compared to 120V — this harness provides a purpose-built connection point between the ceiling circuit and the VP fixture.

Best Uses for the PHOTOBIO VP White Cable Harness

This harness is purpose-built for PHOTOBIO VP LED fixtures in grow room environments. It is not a general-purpose extension cord. The following are the situations where it fits best.

• Commercial indoor grow rooms on 277V circuits: Large-scale cultivation facilities and licensed cannabis operations often wire lighting circuits at 277V because it is more energy-efficient at scale. This harness connects PHOTOBIO VP fixtures directly to those circuits using the L7-15P twist-lock format.
• Installations where growers need to move lights regularly: Facilities that adjust canopy light positioning between vegetative and flowering stages benefit from plug-and-play harnesses. Disconnecting and reconnecting the fixture does not require shutting down a panel or calling an electrician.
• Humid or wet-rated grow environments: The Mini IP connectors at the fixture end are dust and liquid resistant. Growers in high-humidity rooms or facilities running aeroponics and NFT systems benefit from the added environmental protection at the connection point.
• Retrofit of existing 277V infrastructure: The L7-15P plug head is a standard format for 277V circuits. If an existing facility already has L7-15P receptacles installed, this harness connects new PHOTOBIO VP fixtures to that infrastructure without requiring panel or wiring changes.
• Multi-fixture commercial canopy builds: When deploying multiple PHOTOBIO VP units across a large canopy, uniform plug-in harnesses simplify commissioning, troubleshooting, and future fixture replacement compared to hardwired installations.

PHOTOBIO VP Cable Harness vs Similar Power Cords

Generic 277V power cords are available from electrical supply houses and general retailers. The PHOTOBIO VP harness differs in several specific ways that matter for grow room use.

A standard 277V pigtail or whip from an electrical supplier is designed for general commercial lighting. It typically terminates in bare wire leads or a connector sized for fluorescent ballasts or HID drivers. It does not have a Mini IP connector on the fixture end and is not designed for disconnect-and-reconnect use at the fixture. Installing a generic cord on a VP fixture would require splicing or improvised connectors, which could void the fixture warranty and create a code compliance issue.

The PHOTOBIO VP harness is factory-configured with the correct Mini IP connector for the VP fixture series, meaning the connection is clean, rated, and reversible. The 10-foot length also accounts for typical ceiling-to-fixture drop distances in standard commercial grow rooms. If you are running a high-output LED fixture like the Gavita Pro 1700e that uses different connection hardware, that fixture has its own compatible cords — these harnesses are specific to the PHOTOBIO VP series.

For growers comparing harness options within the PHOTOBIO VP line itself: the 277V L7-15P version is for facilities with 277V single-phase circuits and L7-15 receptacles. The 120V version uses a standard NEMA 5-15P plug and works on common 120V household-style circuits. The 240V version uses a NEMA L6-series plug for 240V two-pole circuits. The bare wire version connects directly to hardwired conduit without a plug head. Choose based on what voltage and receptacle type your electrical panel and circuits provide.

Compatibility

This cable harness is designed for use with PHOTOBIO VP LED grow fixtures. The Mini IP connector on the fixture end is specific to the VP series. Do not assume this connector will fit other PHOTOBIO series (such as the MX or TX) without verifying connector compatibility with the manufacturer.

Electrical circuit requirements:

• Requires a 277V single-phase circuit
• Requires an L7-15P twist-lock receptacle at the circuit end
• Wire gauge is 18AWG — verify the amperage draw of your VP fixture does not exceed the rating for this gauge at 10 feet (18AWG is rated for up to 10A at standard temperatures)

Voltage configurations: The PHOTOBIO VP harness line is offered in 120V, 240V, 277V, and bare wire (0-10V) versions. This listing is the 277V, L7-15P, 10-foot variant (SKU CHM108220W). If your facility runs 240V circuits, a matching 240V harness is available separately.

This harness is distributed by Hydrofarm, which offers other PHOTOBIO accessories and components through the same distribution channel. It is compatible with PHOTOBIO VP fixtures running on commercial 277V single-phase power — the voltage commonly provided in commercial and industrial buildings via a 480Y/277V wye distribution system.

If you are setting up a large-scale facility and are comparing power distribution options, related fixtures and accessories — including the Faven Chroma power cords for 120V setups — may also be worth reviewing if your facility has mixed voltage zones.

Usage Guidelines

This harness is a power connection component, not a fixture or control device. The usage guidelines below cover how to handle and deploy it correctly in a grow room setting.

Before connecting:

• Verify the circuit is de-energized before making connections. Turn off the breaker supplying the circuit.
• Confirm the circuit voltage is 277V and the receptacle is NEMA L7-15P before plugging in.
• Inspect the cable and connectors for any visible damage before first use.

During installation:

• Route the cable with the included mounting clips, screws, and zip-ties to keep it clear of heat sources and foot traffic paths.
• Avoid sharp bends at the connector ends. Maintain a minimum bend radius of approximately 3x the cable diameter to prevent conductor stress.
• The Mini IP connector should seat and lock securely at the fixture. Do not force it. If it does not seat cleanly, check that the fixture connector port is clear of debris.

Ongoing use:

• The UV resistant jacket is rated for grow room lighting exposure, but avoid routing the cable so it rests directly on a hot fixture housing for extended periods.
• Inspect connectors periodically for signs of moisture ingress, corrosion, or physical wear, particularly if the room runs at high relative humidity.
• When repositioning or removing a fixture, disconnect the harness at the fixture-side Mini IP connector. Do not pull on the cable body to disconnect — grip the connector housing.

How to Install the PHOTOBIO VP Cable Harness

1. De-energize the circuit. Turn off the breaker for the 277V circuit you are connecting to. Verify with a non-contact voltage tester before touching the receptacle.
2. Mount the PHOTOBIO VP fixture at the target height above the canopy using appropriate hanging hardware. Leave access to the fixture’s power input port.
3. Connect the Mini IP end to the fixture. Align the Mini IP connector with the input port on the VP fixture. Push in and rotate to lock, following the connector’s twist-lock action. It should seat with a positive stop.
4. Route the cable. Use the included mounting clips, screws, and zip-ties to secure the cable along the fixture body or along an overhead cable tray or conduit path. Avoid pinching the cable at corners.
5. Plug the L7-15P end into the receptacle. Insert the L7-15P plug into the matching receptacle. Rotate clockwise to engage the twist-lock mechanism. The plug should not pull out without counter-rotating first.
6. Restore power and verify. Turn the breaker back on. The VP fixture should power up. Check for indicator lights or expected behavior per the fixture manual. If the fixture does not power on, turn off the breaker and verify both connector ends are fully seated.

If this is a multi-fixture installation, repeat steps 2 through 6 for each fixture before energizing the circuit. For new builds with no existing 277V receptacles, a licensed electrician must install L7-15P receptacles before these harnesses can be used.

Sources & Further Reading