Industry Platform

Lighting & LED Wire Harnesses & Cable

Custom LED and lighting cable assemblies for fixtures, grow lights, architectural and outdoor lighting — UL-listed high-temp fixture wire, low-voltage 12/24/48V DC, IP65–IP68 sealed and wired to 0–10V, DALI and DMX dimming.

Lighting and LED wire harness
High-Temp Wire150°C
SealedIP65–IP68
First-Pass YieldHigh
Samples7–10 Days

Application Context

What makes a lighting wire harness different

A lighting harness lives in a tougher spot than its low voltage suggests. The wiring closest to an LED driver runs hot — often 105–150°C — so it needs UL-listed fixture wire such as UL 1015 or UL 1007, and silicone where it is hottest, rather than ordinary hook-up wire that embrittles and cracks. At the same time most fixtures run on low-voltage 12, 24 or 48V DC, where conductor gauge has to be sized for voltage drop so a long daisy-chain of fixtures holds even brightness from the first to the last.

The environment changes the build, too. Indoor fixtures and signage need clean dimming and control wiring — 0–10V, DALI / DALI-2, DMX512 or PWM — bundled with the power leads. Outdoor, street and horticultural fixtures add UV, rain and greenhouse condensation, so they get UV-resistant jackets, IP65–IP68 sealed overmolded leads and waterproof IP68 connectors. We build all of these as custom, pre-terminated assemblies with Wieland GST, Phoenix Contact, Molex and Wago push-in connectors plus factory pigtail leads — so your fixture line plugs and seats instead of field-crimping.

Applications

Lighting applications we wire

Custom harnesses for indoor, outdoor, horticultural and signage lighting.

LED Fixtures & Driver Wiring

Driver-to-board and board-to-fixture harnesses for downlights, panels, troffers and linear LED fixtures. We run high-temperature UL 1015 / UL 1007 fixture wire near the driver and pre-terminate the low-voltage DC leads so the fixture line just plugs and seats.

  • UL 1015 / 1007 high-temp fixture wire
  • 12 / 24 / 48V DC low-voltage leads
  • 105–150°C rating near drivers
  • Color-coded, polarized leads

Horticultural & Grow-Light Harnesses

Power and daisy-chain harnesses for grow-light bars and racks that live in hot, humid, high-condensation greenhouses. Sealed IP65–IP68 overmolds and Wieland GST connectors keep moisture out across long, repeatedly re-cabled fixture rows.

  • IP65–IP68 sealed overmolds
  • Wieland GST daisy-chain connectors
  • Humidity / condensation resistant
  • 0–10V & PWM dimming leads

Architectural, Outdoor & Street Lighting

Weatherized harnesses for facade and landscape fixtures, street and area lighting and parking structures. UV-resistant jackets and IP68 waterproof connectors survive sun, rain and freeze-thaw cycling on fixtures that are expected to run for years.

  • UV-resistant outdoor jackets
  • IP68 waterproof connectors
  • Pigtail leads for in-fixture wiring
  • Phoenix Contact / Wago push-in

Signage, Display & Control Wiring

Low-voltage power and control harnesses for channel-letter signage, backlit displays and lighting-control nodes. We build to 0–10V, DALI / DALI-2 and DMX512 control buses so dimming and addressable scenes wire up clean alongside the power runs.

  • 0–10V / DALI / DALI-2 control
  • DMX512 addressable wiring
  • Molex & Wago push-in terminations
  • Low-voltage 12 / 24 / 48V DC

Engineering Challenges

Review risk before production

01

Driver Heat

Wire and insulation selection for the 105–150°C zone next to LED drivers, using UL 1015 / 1007 fixture wire and silicone where it is hottest so the harness does not embrittle over the fixture life.

02

Sealing & Weather

IP65–IP68 sealed overmolds, UV-resistant jackets and IP68 connectors specified for outdoor, street and horticultural fixtures exposed to sun, rain and greenhouse condensation.

03

Dimming & Control Bus

0–10V, DALI / DALI-2, DMX512 and PWM control conductors wired alongside the power leads so addressable and tunable fixtures integrate without rework.

04

Voltage Drop on Long Runs

Conductor gauge sized for low-voltage 12 / 24 / 48V DC daisy-chains so a long row of fixtures holds even brightness from the first to the last.

Technical Capabilities

Lighting-grade technical capabilities

UL-listed fixture wire and IP-sealed construction, validated for high-temperature, low-voltage and dimmable lighting service.

System Voltage12–48V DC
Temperature RangeUp to +150°C
Ingress ProtectionIP65–IP68
Control Protocols0–10V / DALI / DMX
First-Pass YieldHigh
Sample Lead Time7–10 Days
Lighting and LED wire harness manufacturing

Manufacturing Process

A controlled build, drawing to shipment

01Drawing / BOM Review
02Connector Sourcing
03Cutting & Stripping
04Crimping / Assembly
05In-process Inspection
06Electrical Test
07Final Inspection
08Packaging & Export

Quality & Testing

Documentation for OEM review

Every lighting harness gets continuity and circuit-mapping verification, with sealed-connector and dimming-bus checks where the application calls for it — all documented for lot-level traceability before it ships.

Material ApprovalProcess ControlCrimp Pull-ForceContinuity TestSealing / IP CheckFinal InspectionLot TraceabilityFAI SupportCorrective Action

Why WHP

Why choose our lighting wire harness services

LED and lighting cable assemblies built to survive the heat, the weather and the dimming bus.

UL-Listed Fixture Wire

We build with UL 1015 / UL 1007 fixture wire and high-temperature 105–150°C insulation so the wiring nearest the LED driver survives the heat instead of embrittling and failing.

Sealed for Outdoor & Horticulture

IP65–IP68 waterproof overmolds and UV-resistant jackets keep moisture, condensation and sunlight out of outdoor, street and grow-light harnesses for the long fixture lifetimes lighting OEMs expect.

Built to Dimming & Control Buses

Harnesses wired to 0–10V, DALI / DALI-2, DMX512 and PWM dimming, so addressable and tunable fixtures integrate without rework on the line or in the field.

IPC/WHMA-A-620 Workmanship

Every assembly is crimped, sealed and continuity-tested to IPC/WHMA-A-620 workmanship under our ISO 9001 quality system, with RoHS-compliant, UL-listed materials per your build spec.

Lighting industry standards

We build to UL-listed materials and RoHS compliance per your spec, with assemblies manufactured to IPC/WHMA-A-620 workmanship under our ISO 9001 quality system.

ULListed Fixture Wire
A-620IPC/WHMA Workmanship
ISO 9001Quality System
ISO 9001 Certificate

FAQ

Lighting wire harness FAQ

What wire do you use for LED and lighting harnesses?
We build with UL-listed fixture wire — primarily UL 1015 and UL 1007 — rated for the high temperatures around LED drivers (105–150°C), with silicone-insulated wire for the hottest zones. Most lighting harnesses run low-voltage 12 / 24 / 48V DC, with conductor gauges sized to control voltage drop across long daisy-chained fixture runs.
Can your lighting harnesses handle 0–10V, DALI and DMX dimming?
Yes. We build to the common lighting control buses — 0–10V analog dimming, DALI and DALI-2 addressable control, DMX512 for entertainment and signage, and PWM dimming. We wire the control conductors alongside the power leads as one tested assembly so dimming and addressable scenes work without rework.
Are your outdoor and grow-light cables waterproof?
They are. For architectural, street and horticultural lighting we use IP65–IP68 sealed overmolds, UV-resistant jackets and IP68 waterproof connectors. Greenhouse grow-light harnesses in particular see heat, humidity and condensation, so sealing and UV resistance are designed in rather than added later. See our waterproof and overmolded cable assemblies for the construction detail.
Which connectors do you terminate for lighting?
We factory-terminate Wieland GST (the standard for fixture daisy-chaining), Phoenix Contact, Molex and Wago push-in connectors, plus IP68 waterproof connectors and pigtail leads for in-fixture wiring. All terminations are crimped and continuity-tested in-house, so fixture builders and installers do not field-crimp.
What standards do your lighting harnesses meet?
Assemblies are manufactured to IPC/WHMA-A-620 workmanship under our ISO 9001 quality system. We build to your specified requirements — UL-listed fixture wire and components, RoHS compliance, and the dimming/control bus your fixtures use — so the harness passes your own listing and inspection requirements.
Why use high-temperature wire near LED drivers?
LED drivers and power supplies run hot, and the wiring closest to them sees the most thermal stress. Standard hook-up wire embrittles and cracks at those temperatures over time. Using UL 1015 / 1007 fixture wire rated 105–150°C — and silicone where it is hottest — keeps the harness reliable across the fixture lifetime.
What is your MOQ and lead time for lighting projects?
We support prototypes from small quantities with 7–10 day sample lead times, scaling to production batches (typically 500+ units, negotiable). That lets a lighting OEM validate a harness on a real fixture before committing to volume.
Do you offer design support for lighting harnesses?
We do not provide standalone design services, but our engineering team gives DFM feedback on your existing drawings — connector selection, conductor sizing for voltage drop on long runs, sealing strategy for outdoor and horticultural fixtures, and dimming-bus wiring — to optimize manufacturability and cost.

OEM Program Entry

Review Your Lighting Harness Requirement

Share drawings, BOM, photos, or early-stage requirements. Our engineering team will review manufacturability, connector selection, sealing class, dimming-bus wiring, and production requirements before manufacturing starts.

We will review

  • 01Design Feasibility
  • 02Component Availability
  • 03Cost Drivers
  • 04Validation Requirements

Related Capabilities

Related cable solutions

Custom cable assembly and harness services that pair with lighting programs.