The automotive LED headlight wiring harness is a high-performance connection component designed for modern automotive headlight systems. It uses high-quality heat-resistant insulation materials, combined with precision terminals and connectors, to ensure stable power and signal transmission in harsh environments such as high temperature and vibration. This harness is widely used in the headlight assemblies of various passenger cars and commercial vehicles, representing a mature solution in the automotive wiring harness processing field. Product Features: Excellent Heat Resistance: Uses special insulation materials with a temperature rating above 125°C, suitable for the high-temperature environment of the engine compartment. Excellent Insulation Performance: Insulation resistance ≥100MΩ, effectively preventing leakage and short circuit risks. High-Reliability Connection: Equipped with gold-plated or tin-plated terminals, low contact resistance, resistant to vibration loosening. Customized Design: Can provide different lengths, terminal types, and sheath solutions according to customer drawings. Strict Quality Control: Full process includes continuity testing and insulation withstand voltage testing to ensure zero-defect delivery. Technical Parameters: Rated Voltage: DC 12V / 24V; Rated Current: Supports 5A-20A depending on wire gauge; Operating Temperature Range: -40°C to +125°C; Insulation Material: PVC / XLPE / Silicone (optional); Terminal Material: Brass tin-plated / Phosphor bronze gold-plated; Protection Level: IP67 (optional waterproof sheath). Application Scenarios: The automotive LED headlight wiring harness is mainly suitable for: Passenger car headlights (high beam, low beam, daytime running lights); Commercial vehicle/truck LED headlight systems; Modified vehicle lights and auxiliary lighting groups; New energy vehicle headlight assemblies. This harness can be used with various LED modules and drivers, and is a common standardized component in automotive wiring harness processing.
Technical Specifications
| Parameters | Please consult sales for detailed specifications |
| Terminal Type | Flag/Ring/Bullet Terminal |
| Wire Gauge | 18AWG |
| Rated Voltage | 12V/24V DC |
| Rated Current | 15A |
| Temperature range | -40°C ~ +125°C |
| Insulation Material | XLPE (Cross-linked Polyethylene) |
Product Features
- High-temperature insulation design for harsh engine bay environments
- High-purity copper conductors for low-resistance, efficient transmission
- Custom terminal crimping for secure, reliable connections
- VW-1 flame rating, compliant with automotive safety standards
- Vibration-resistant construction extends service life
- Multi-branch configurations for flexible LED light group adaptation
Application Scenarios
- Home Appliances and Consumer Electronics
Custom power cords, signal wires, and ribbon cables, meeting ROHS/REACH environmental standards, suitable for white goods and small appliances. - Automotive Electronics and New Energy
Automotive wiring harnesses, sensor harnesses, high-voltage connection harnesses, certified under TS16949 quality system, resistant to high temperature and vibration. - Industrial Automation and Equipment
Robot harnesses, servo motor harnesses, drag chain cables, high flexibility and bending resistance, suitable for complex industrial environments. - Medical Equipment Harnesses
Medical-grade harness customization, biocompatible materials, precision terminal crimping, suitable for monitors, ultrasound equipment, etc.
Frequently Asked Questions
What is the minimum order quantity for custom harnesses?
The MOQ for standard products is 1000pcs, small trial orders can be as low as 100-200pcs. It is recommended to request samples for quality confirmation for the first cooperation.
What terminal types and wire gauges are supported?
Supports full series terminal crimping (JST/Molex/TE/Hirose, etc.), wire gauges from AWG12 to AWG32, customizable length, color, and strip size.
What are the quality inspection standards for the harnesses?
Implemented according to UL 486A standards, including continuity testing, insulation withstand voltage testing, pull force testing, visual inspection, providing full inspection shipment reports.
Will wire harnesses age after long-term use? How to extend service life?
Under normal operating conditions, this wire harness has a service life of 10~15 years for silicone rubber material and 5~8 years for PVC material. Factors affecting service life: ① Operating temperature — long-term operation at the upper limit of rated temperature will accelerate aging (service life halved); ② Bending frequency — for frequent bending applications, choose high-flexibility wire harnesses (bending life ≥10 million cycles); ③ Environmental factors — UV, ozone, and chemical solvents will accelerate aging of the silicone rubber outer layer. Recommendations to extend service life: leave a 20% margin in operating temperature, avoid contact with chemical solvents, install protective sleeves during fixed wiring, and regularly check whether the terminal crimp area is heating.
Can the color of the wire harness be customized?
Any color can be customized; usually provide a Pantone color number or color swatch for color matching. Common stock colors: black, white, red, blue, yellow, green (shipped within 24~48 hours). Custom color MOQ depends on specifications (usually from 1000 meters), lead time extended by 3~5 working days. Printing/marking service: model, LOGO, certification mark, etc. can be printed on the wire harness surface as required; both heat transfer printing and inkjet coding processes are supported. Please provide a printing draft before confirming the printing content to avoid errors.
Can this wire harness be used in medical devices? What standards must it meet?
The standard wire harness of this product is not recommended for direct use inside medical devices. Medical device wire harnesses must meet the IEC EN60601 standard, with requirements: ① low leakage current — ordinary wire harness leakage current ≤0.5mA, medical grade ≤0.1mA; ② biocompatibility — insulation and terminal materials must pass ISO 10993 biocompatibility testing; ③ high isolation voltage — reinforced insulation, isolation voltage ≥4000V; ④ cleanliness — produced in a cleanroom, no ionic contamination. Yingna Technology can customize medical-grade wire harnesses (including EN60601 certification); technical parameters and certification requirements must be communicated in advance, and production will be arranged separately.
What is the temperature resistance range of the wire harness? Can it be used long-term in high-temperature environments?
The temperature resistance range of the wire harnesses in this machine varies by insulation material: silicone rubber insulation -60℃~+200℃ (short-term peak 250℃), PVC insulation -20℃~+105℃. In high-temperature environments (such as automotive engine compartments, around industrial furnaces, and inside new energy vehicle battery packs), silicone rubber wire harnesses must be selected; PVC material will accelerate aging and crack the insulation layer in such scenarios. For low-temperature environments (such as extremely cold outdoor areas) and high-low temperature cycling applications, silicone rubber wire harnesses are also recommended.
What is the flame retardant rating of the wire harness? Does it comply with the UL VW-1 standard?
The flame retardant rating of this wire harness reaches UL VW-1 (vertical burn test), which is the minimum flame retardant requirement of the UL 758 electronic wire standard. Higher flame retardant ratings are optional: UL VW-1 + vertical burn, UL FT2 (horizontal burn), UL VW-1 + FT2 dual certification. Significance of flame retardant standards: For a wire harness that passes VW-1, in the vertical burn test, after 5 times of 15-second burning, the flame self-extinguishes within 60 seconds, does not ignite the cotton cloth below, and has no burning drips. For applications with high fire protection requirements (such as inside new energy vehicle battery packs and medical devices), it is recommended to select a wire harness with a higher flame retardant rating.
What is the insulation material of this wire harness? Does it meet environmental protection requirements?
The insulation material of this harness uses silicone rubber (Silicone Rubber) or PVC, with the corresponding material selected according to different model specifications. Silicone rubber withstands temperatures from -60℃ to 200℃; PVC withstands temperatures from -20℃ to 105℃. The entire series of wires complies with RoHS 10-item testing and REACH SVHC screening, contains no lead, mercury, cadmium, or other harmful substances, and third-party SGS test reports can be provided. Electronic wires exported to North America must meet the UL VW-1/FT2 flame retardant rating; those exported to Europe must meet the CE Low Voltage Directive.
What is the conductor material of this wire harness? Bare copper or tinned copper?
This product uses stranded tinned copper wire conductors, balancing conductivity and corrosion resistance. Bare copper conductivity is approximately 101%IACS, and tinned copper is approximately 98%IACS (difference only about 3%). Advantages of tinning: oxidation resistance is 3~5 times stronger, solderability is better (avoiding solder non-wetting issues), and corrosion resistance is significantly improved. For scenarios requiring high reliability such as new energy vehicles and outdoor equipment, it is recommended to prioritize tinned copper wire harnesses.
What is the minimum bending radius of the wire harness? Can it be used for wiring in confined spaces?
The minimum bending radius of this wire harness is 5 times the wire diameter, far smaller than the 10 times wire diameter requirement for ordinary PVC wire. Due to the stranded structure of multiple extra-fine tinned copper wires, the harness offers excellent flexibility and can be routed flexibly in confined spaces such as mobile phones, sensors, automotive door panels, and LED luminaires, and repeated bending is unlikely to break the core. If a smaller bending radius is required (such as robot drag chains), a high-flexibility drag-chain-specific wire harness can be selected.
How to judge the quality of wire harnesses?
3 methods to quickly identify wire harness quality: ① Visual inspection — the insulation surface is smooth with no marks, no bubbles, and no color difference or eccentricity; ② Bending test — after repeated bending 100 times, the insulation has no cracks (silicone rubber) and no obvious whitening (PVC); ③ Flame test — for high-quality wire harnesses, self-extinguishing time after removal from flame is ≤30 seconds (UL VW-1/FT2 standard); inferior wire harnesses continue burning with drippings. Also measure insulation thickness (whether it meets UL standard) and conductor resistance (≤ UL specified maximum). Before bulk purchasing, it is recommended to require the supplier to provide samples for comprehensive quality confirmation.
