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Wholesale 12V 24V ceramic H4 led bulb holder H4 Led headlight bulb Plug Adapter H4 Car Led Fog Light Bulb Socket harness cable

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Quick Details

Car Make: all related h4 car models
Place of Origin: China
Sampl testing: Available adapter cable wiring h4
Material: Ceramic
Model Number: h4 led harness wire
Model name: h4 led harness wire
Certification: ce
Brand Name: FSYLX
Function: Short circuit protection/waterproof protection
Type: Headlight
Packing: Free packing h4 led cable
Style: H4 car bulb holder
Application: h4 led xenon bulb light lamp
Fit for OEM car: Highly compatible for h4 wire harness
Error free: Suitable for h4 controller relay xenon socket
Packaging Detail: 10-20 pieces for each carton. depends on your order quantity
Selling Units: Multiple of 800
Package size per batch: 50X30X40 cm
Gross weight per batch: 21.0 KG
Foshan YLX Technology Co., Ltd.
Manufacturer, Trading Company
Response Rate
On-time delivery rate
US$ 250,000+
R&D staffs
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     ceramic H4 led bulb holder BH-H4 Led headlight bulb Plug Adapter H4 Car Led Fog Light Bulb Socket harness cable


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Parameter table


Product name wholesale h4 led socket LED bulb holder plug adapter h4 led headligth lamp fog lamp h4 led holder






All related ket to h4 led socket

Authorized certificates



800 pieces

The function of h4  xenon harness wire

Short cirsuit protection

Reset automatically when installation error

High speed color temperature transmission

High heat resistance

Smart IC inside

Maintenance free



Package: 10 pcs h4 led harness wire+EVA packing/foaming packing per parcel


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Free packing on offer

Photos are for your reference only



The main features of h4 xenon harness wire:


Bulb types compatible - auto electrical wire

This listing is for a brand new HID Relay Harness for both driver and passenger sides 

Protects your HID system by drawing stable current directly from your battery for both sides of headlights 

Increase 5-15% of the brightness. 

No more flickering due to low electrical current. 



Company overview


Our company, Foshan YULONG XING TECHNOLOGY CO., LTD. (Car-refine International Co., Ltd.) was established in 2004. With the related 10 years experiences, we have reached a marvelous level among our competitors. And now we become one of the leading manufacturers and suppliers for automobile lighting business in the world. Our main production line is focused on auto led lighting, hid xenon bulb, hid xenon kit, hid xenon ballast, h4 led harness wire, etc.




Authorized certification--CE




Way of payment


T/T, West Union, MoneyGram, L/C
Normally pre-pay 30% as deposit and get 70% done when finished goods come out.







Why us?


We're the seasoned and skillful manufacturer who utilizes absolutely raw material with zero contamination.

We have been producing h4 led harness wire in the relevant field for over 10 years.

OEM/ODM service are available.

100% brand new and top of the range, repair rate under 0.01%.

We have plenty of marketable kinds of h4 led harness wire to meet your urgent needs.


Each of our products must be gone through full test before exquisite packing


Friendliness of staff, timeliness in service, extremely high QC, the most competitive EXW price, what's more, timely delivery and short lead time.



Buyers’ guidance

Make sure the car model, color, watt, material during your inquiry.
Custom work, photos for reference, 3D drawings, logo printing are all welcome.
Your questions and inquiries will be replied within 12 hours except vacations.






Contact now to get the most competitive factory price for your target markets and your target customers.