Mine are Acura TSX projector housings retrofitted in to a set of aftermarket housings.
Projectors:
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As you can see, my lenses are the more desirable and harder to find clear lenses instead of the Fresnel lenses.
Housings:
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35W 4300K D2S capsules.
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Running some cheapy slim ballasts until I can gather the coin for some good OEM ones.
Housings as delivered are crap. "Sonnar" or "Sollar", something like that. Absolute garbage, I wouldn't recommend them to anyone who was going to use them "as is".
Adjusters are garbage: swapped in the GM OEM ones.
Rad support mount garbage: swapped to OEM ones.
The mounting bolts that join the housings to the base are garbage, moves around too much: modified with JB weld
Chin-Chin projectors are absolute garbage : but they were removed for the Acura units anyways
There were many other things about them that was garbage, but I went in knowing they were cheap and all I wanted was something with clear lenses to hold the Acura projectors. All they really do is keep the weather out, nothing more. The TSX projectors do the real work.
Rad support on the truck requires cutting for clearance.
But:
With the right modifications and the proper HID projectors installed, these light burn down the road. The cut off is razor sharp, the beam is mega wide. I always end up in the front of the "convoy" as my lights "see" the furthest and pick up the moose and shiny eyes hundreds of yards into the trees on the sides of the road.
High beams are not even required so I simply popped in a cheapo "plug n play" HID capsule in the housings to add a little fill above the low beam cut-offs to light up highway signs down the road far enough away to be above the cut off. I may source another set of Acura projectors and remove the cut off shield for high beam lighting.
I use Acura TSX projectors because they are relatively small compared to most and they fit in to the minimal space in the GMT400 headlight/rad area with the least cutting. Motorized housings (IE: motorized cut off shield) would be nice, but they are too long to fit int he space in front of the dual batteries.
I've toyed with building a set with different housings as the black isn't working for me quite as well as I thought it would. The black were bought as it would be an easy install to cover up the modifications behind them to fit the TSX projectors. Just not liking the look much.
"Halo's" belong on beemers, not trucks, especially not these trucks. No offense intended if you like them, I just don't.
Probably go with a plain chrome housing if I try again and build up some nice stainless rings/covers to cover up the TSX "mechanicals".
I won't get into what's wrong with every other type of HID installation that doesn't use proper projectors, no one listens/wants to listen, so no sense wasting time on it.
I went with the 4 Hi modification so there is no loss of light during power up from low to HI. But mine is done differently than most. I don't use the OEM wiring at all. There is a dedicated trigger wire run from the headlight switch to the high power relay under the hood. This does battery power directly to the lows though 12 Gauge wiring. This means they don't go off when you hit high beams.
High beams are triggered off the OEM wiring under hood, but this activates a relay that feeds battery power to the high though 12 G wiring.
Both are very short runs from the battery, all laid in a "custom relay center" I have built under the hood:
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Pardon the mess the engine bay is in that pic.
There's a few more relays in there now and the reel light has moved elsewhere to make way for an on board battery charger, but that's pretty close to the way it sits.
No picture of the TSX light pattern/output, but here an identical set in a gents beemer retrofit:
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That picture right there is why TSX projectors get installed in everything from lexus's to beemers and even end up replacing some OEM projector lights. Their output, cutoff and sheer width of the beam is near impossible to beat.
It's why i paid a little bit extra to get the housings I wanted.