SKU: 43530737871

2pcs Polarity Conversion Relay 12 V H4

Sale price$11.49 Regular price$12.77
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

2pcs Polarity Conversion Relay 12 V H4Description: Some old vehicles are negative control vehicles. The standard HID headlights are positive control, but when connected to negative control vehicles, you may encounter the following problems: 1. Headlight does not light up correctly and cannot be switched between Hi Lo and Hi Lo switching delays. This HID polarity conversion relay can solve these problems, so you can work your headlights normally. 2. H4 Hi Low Switch HID Kit for Phillips

Description:
Some old vehicles are negative control vehicles. The standard HID headlights are positive control, but when connected to negative control vehicles, you may encounter the following problems:
1.Headlight does not light up correctly and cannot be switched between Hi/Lo and Hi/Lo switching delays.
This HID polarity conversion relay can solve these problems, so you can work your headlights normally.
2. H4 Hi Low Switch HID Kit for Phillips Control is useful when installing negative control vehicles.The polarity conversion relay is inserted directly and the negative is positive, positive is negative, easy to use.
3. When the HID headlights start up high voltage, and the high voltage will affect the in-car circuit. This HID polarity conversion relay makes the current more stable and protective device, so it is recommended to install this relay.
4, If you find that there are problems with your newly installed headlights, please make sure that the cause is not the headlight body or due to polarity issues, this polarity conversion relay is the choice to solve polarity problems when replacing HID headlights.

Specification
For 12 V only.
H4Hi/Lo Headlight for Car
Compatible with HID ballasts 35W to 75W
Compatible with LED headlight bulbs
Relay body is completely waterproof.

Fitment:
Applicable Vehicles: 12V car suitable for all negative control vehicles with 4 connectors. Headlight (H4 Hi/Lo Switchable) HID / LED Car / Motorcycle / Truck (For Jimney SJ30,SJ40,JA51,JA71,JA11,JB31,JA12,JA22/Mighty Boy/Fronte) Most domestic cars (signal control of most Toyota vehicles is negative)

Package included:
2 X H4 Negative Polarity Conversion Relay
(show as pictures )
[* Instruction is not included!]

Note:
1.Please check the description or use the year/make/model check finder and replace part numbers to confirm the compatibility before purchasing.
2.Professional installation is recommended.


Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
24-Hour Expert Online: Solve your installation and product problems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 43530737871

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Biff Worthington
Massapequa, US
★★★★★ 4
It’s so so but ok
Color: Champagne
The color is good and the hair is not as silky as my car seat or seatbelt covers. Also the hairs really get matted. It may just be from elbows but it gets so matted it is hard to undo. And when you do get it good it happens right again and frankly looks bad and unkempt. Other than that it fits right and is more comfy than original so I leave it on. Even with vacuum at car wash the mats stay so it seems eventually it will be too much. I have had it about a month. Maybe a shorter pile is a better option for armrest, like shearling pile. I’ll try that when this one is too far gone. It wasn’t expensive and is still worth the money to not have a blazing hot armrest so I m good for now.
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Reviewed in the United States on April 17, 2026
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shari morgan
Massapequa, US
★★★★★ 3
🙂‍↔️
Color: Light Pink, Color: Light Pink
The color is beautiful. Is soft, but it runs very short doesn’t fit my car. I’ve had it for six months and now it looks like a dirty dog lol
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Reviewed in the United States on March 17, 2026
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Naomi
Charlottesville, US
★★★★★ 5
Pop some color
Color: Purple
Cute and fun!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
A
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ariana
New York, US
★★★★★ 5
very nice
Color: Light Pink, Color: Light Pink
very soft, nice quality. easy to install. definitely measure and make sure it will fit. mine was about 12” long, and this one fits perfectly. more of a soft, washed out pink rather than the brighter pink pictured
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Reviewed in the United States on January 14, 2026
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DMB
Whiting, US
★★★★★ 5
Great valur
Size: 2' x 3' (Natural), Color: Gray Tipped
Soft and comfortable. Quality leather nsckrd. Genuine sheepskin. No off odors. I'm skinny and not on tailbone. Hoping this helps. The grey tipped is more of a bluish gray. Pretty but not s true gray.
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Reviewed in the United States on March 31, 2026

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