

⚡ Illuminate your drive with precision and power — never settle for dim again!
The O-NEX HID Relay Harness H4 (9003 HB2) is a robust 12V wiring controller designed for Bi-Xenon HID headlights. Compatible with both 35W and 55W kits, it supports dual beam Hi/Lo functionality and fits both left and right sides with a heavy-duty build, ensuring reliable, plug-and-play performance for aftermarket HID installations.











| ABPA Partslink Number | UN2568108 |
| ASIN | B01CTIDBJ2 |
| Auto Part Position | Front |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #81,673 in Automotive ( See Top 100 in Automotive ) #319 in Automotive Replacement Electrical Wiring Harnesses |
| Brightness | 1000 Lumen |
| Color Temperature | 6000 Kelvin |
| Customer Reviews | 4.2 4.2 out of 5 stars (492) |
| Date First Available | March 11, 2016 |
| Global Trade Identification Number | 00732341334307 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.6 ounces |
| Item model number | H4 |
| Light Color | Red |
| Light Output Maximum | 3500 Lumens |
| Manufacturer | O-NEX |
| Manufacturer Part Number | HID-RLH4 |
| Number of Pieces | 2 |
| OEM Part Number | H4 |
| Product Dimensions | 7 x 2 x 2 inches |
| UPC | 732341334307 |
| Voltage | 12 Volts |
S**L
Perfect, exact, replacement
Replaced a five year old dead one that started shorting out for one headlight then altogether. 5 start for being able to get a random part, that works perfectly, overnight, for $10
G**S
Ok
Good for the money Relay has limited life with 50w
E**R
Instalación sencilla: El arnés de relé O-NEX es muy fácil de instalar. Simplemente conecta los cables a los conectores OEM de tu vehículo y listo. Fiabilidad: El arnés de relé está fabricado con materiales de alta calidad y está diseñado para durar. Compatibilidad: El arnés de relé es compatible con la mayoría de bombillas HID de 35W y 55W. Conclusión: Buena opción: El arnés de relé O-NEX es una buena opción para los conductores que buscan una instalación sencilla y fiable para sus bombillas HID. Detalles adicionales: El arnés de relé O-NEX está diseñado para controlar las funciones de haz alto y bajo de las bombillas HID. Se conecta a los conectores OEM de tu vehículo, lo que significa que no es necesario cortar ni empalmar ningún cable. El arnés de relé está fabricado con materiales de alta calidad, como conectores de cobre y un cable de 100% resistente al agua. Es compatible con la mayoría de bombillas HID de 35W y 55W, incluidas las bombillas de repuesto O-NEX.
R**A
Great product
The relay did fit on Toyota Etios and works as expected.
D**M
**** EXTREME FIRE RISK ****
****EXTREME FIRE HAZARD***** DO NOT BUY! Two 35 watt HID conversions from DDM tuning is all it took to absolutely nuke this thing. The lowest power HIDs available. It's made FAR too cheap and does not have the proper wiring and circuitry to handle the current. This is after less than 2 hours of headlight usage!!!! This WILL burn someone's car to the ground. Fortunately I had my air on fresh air and picked up the scent very close to the moment the fire started. All other wiring is intact and I, being cautious and weary, swapped the fuse down to a 15A and that was still intact.
B**S
1 of 2 harness
I've boughten this item a couple years ago and has been working great for my '01 CRV, I recently moved that kit to a '04 Sequioa. I needed a new kit for my CRV. This second harness the wires are shorter then the other one I bought 2 years ago The fused power connection is about 4 inches shorter and causes the extension to the other headlight to be shorter distance. But still this new harness works just as good as the older one.
L**A
Good decent product
Ive bought before and it last about 2 years received a new one but was broken luck of the draw
R**L
Mejor de lo que esperaba
C**I
parece de buena calidad y el precio es barato
V**A
Have been using it for over a month now and it lights up every time. Really compact and easy to install even for DIYers. Material quality exceeds my expectations.
A**N
المنتج جيد و يستاهل الشراء
T**N
Plug and play.
J**Z
Muy buena calidad
Trustpilot
1 month ago
2 months ago