XtremeVision H4/9003 Bi-Xenon Hi/Lo Plug-and-Play Relay Bi-Xenon Harness HID Wiring Controller

Excelente producto, buen vendedor . Muchas gracias

Para los quendicen que no funciona probablemebte tu carro tenga configuracion h4 en común positivo vas a necesitas un convertor para común negativo para q funciona perfectamente creeme pase muchos días queriendo saber por q no funcionaba mi conversion a retrofit y la explication es necesario que tu configuracion H4 sea en común negativo osea las señales sean poaitivas rn baja y en alta y en mi caso toyota yaris la trae en negativo la señalesNecesitas un conversor común en negativo.... Como el de la foto pero si funciona y hace perfectamente los cambios de luz si alguien me hubiera explicado esto me hubjera ahorrado muchos Dolores de cabeza ni en los video tutoriales en explican que el conector H4 tiene dos configuraciones

I won't be able to ever do a return since I snipped off the 9006 connectors (the ones that connect to the HID harness), crimped on some quick connects, and then just plugged the H1 LED bulb connectors to those. I had to reverse the wires (red to black, black to red) because the polarity was backwards, a known issue with LED light conversions.The 9007 hi/lo beam to single beam LED H1 conversion went beautifully for the most part except for some issues I was already aware of. One problem was that the H1 bulb was too wide to fit through the base of the projector light (another known issue). Well, I broke out the dremel for that little job and made two horizontal channels for the LED light to fit through, since you have to have the lights shine vertically, top and bottom, for them to work in a headlight of any kind.Oh, and this harness has a plug in for your hi-low beam cut-off in your projectors that you just plug into. Awesome!The actual install of the projectors into the headlights are a whole different story (lots of videos on YouTube showing you how to do that) but now I have beautifully bright, LED projector headlights instead of those horrible, horrible stock headlights.Basically, this harness is perfect for transforming the 2 alternating power wires, hi-low beam 9007 connector, into a single power wire and ground for your H1 bulbs.The only problem I have now is that the DRL relay goes haywire, clicks a few times, and then gives me the dreaded "SERVICE" dash light whenever I drive without turning the lights on first. I'll fix that later. If you don't mind an extra bit of wiring, there's a DRL decoder wiring harness for that you can add to it, but there's too many wires to deal with as is, IMO.

Looks like a good solid plug set

Perfect! That's what I was looking for for a retrofit that I did, now I can turn on high beams and the bulb will not turn off, I had to modify the 9006 plug, cut and splice for the h1 bulb.

Wiring works fine but the blue 3 pin connector is incredibly loose and the pins just wiggle around making it difficult to plug into the wiring.

Returned the first pair I was sent because the shutter signal wires are on the wrong side of the harness, it should be on the 9003 connector side not the H4 male side. Ended up getting shipped the same exact thing as a replacement so be aware the product doesn't match the pictures on the listing. Annoying but whatever, I was gonna hack it up anyways to swap the 9003 connectors to H1 for my projector retrofit. Would have saved a lot of time and headache if it were like the pictures though as I had to basically strip the entire harness just to make the high beam +/- wires come out the correct side of the harness for a clean and tidy install inside the dust boot. Works for my intended use in the end hence the 3/5 stars but didn't really save me much time and certainly at a net negative for effort in the end.

Installed this on the factory harness on my 03 Tacoma to add projectors to headlights! worth it