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⚡ Upgrade your ride’s lighting game with seamless power and control!
The iJDMTOY High/Low Relay Wire Harness is a robust 12V DC relay system designed to convert original H4 dual-beam headlights into separated 9005/9006 hi/lo beams. Featuring dual 4-pin SPST relays, an in-line fuse, and broad connector compatibility, it ensures safe, efficient power delivery directly from the battery, reducing load on factory wiring and enabling easy on/off control for multiple lighting applications.










| ASIN | B01M15V3HK |
| Best Sellers Rank | #135,328 in Automotive ( See Top 100 in Automotive ) #532 in Automotive Replacement Electrical Wiring Harnesses |
| Brand Name | iJDMTOY |
| Connector Type | H4, 9006, Hb3 |
| Customer Reviews | 4.2 4.2 out of 5 stars (140) |
| Item Weight | 0.5 Pounds |
| Manufacturer | iJDMTOY Auto Accessories |
| Material Type | Ceramic and Copper Wires |
| Model | For Repair, Conversion, Custom Retrofit |
| Part Number | AA1089a |
R**S
Great product
Awesome to yes if you know what you're doing
P**Z
Miata NB1 to NB2 Headlight Conversion
I did a headlight conversion from a Mazda Miata NB1 to NB2 and used this wiring harness. The NB1 Miata has a ground switching circuit, so the diode in the harness needs to be removed. Once that's done, the low beams stay on when I turn on the high beams. The indicator on the dash also works. I wouldn't say this is super amazing quality, but it gets the job done and has been working so far, so I recommend the product!
A**R
decent product but you get what you pay for
product worked as advertised but was too short so i needed to extend multiple leads which was fine and is what it is but overall its just a cheap product so dont expect too much
M**O
Funciona
Funcionó bien en mi 2012 Chevy express
S**T
Well worth the money
No issues, I would start connecting the wiring hardness from the drivers side towards the battery, then once all connected then wire tie hardness in place
D**H
Works great
Does what it's supposed to do, fits right out of the box. Added bonus: Leaves low-beam on when switching to high beam... (Did not know this when purchasing so it made testing what plug was what (low/high) a bit interesting to say the least)... Note: It's fitted with four (4) 9006 plugs. So if you want to use the "official" high-beam-bulb (9005) you have to change out 2 plugs. None of the 4 plugs are marked to show what they are supposed to be (low/high). 9006 = Low beam (usually 55 W) 9005 = High beam (usually 65 W)
R**R
DIDN'T WORK FOR ME
DIDN'T WORK FOR ME
A**R
Needed to snip diode to make it work.
Easy install. Exactly what I needed to upgrade my Express Van from solid beam to 9005/9006 high/low beam. Problem was both high and low were on the whole time. Opened harness and discovered a diode bridging power between high and low relays. Snipped the diode and now lights function properly.
Trustpilot
Hace 1 semana
Hace 2 meses