happy1977

What's the difference between these 2?

Cruiter

The top one is the optional HID headlight system. The bottom is the standard halogen lights.

happy1977

Thanks. Tried searching everywhere but couldn't find it.

InRBigness

Here is a third version. This is from the 2012 450H with Ultra Premium II and LED headlights.

Cruiter

High tech and very nice.

happy1977

I knew about the 3rd headlamp and I like that better but I guess it's from hybrids only. Thanks for the info fellas.

Sfcyclist

I wish it was reversed for the halogen and hid. I prefer the headlamps on the outside.

papaalex

+1
thats how it is set up with my IS, HIDs on the outside and DRL on the inside..

RXSF

yeah I dont know why Lexus went through the trouble of creating two different housings for headlights, three if you count LED. I speculate it might have to do with bulb height and not shining light into other people's eyes

Sfcyclist

Majority of other makers as well. Perhaps motors for adaptive headlights?

07LexusGuy

The 2 different (Non-LED) headlight designs might be due to the Automatic High Beam function on the HID headlights. Because it's bi-xenon and there's no separate high beam bulb, it's possible that the relatively lower position of the headlight projector is required to correctly angle the high beam when it automatically switches on.

Cruiter

With the Bi-xenon HID's there is technically only one beam. For low-beam there is a shutter that covers part of the light source.

It's not a light that can stand constant on/off required when a 'normal' high beam comes on such as in halogen bulbs. On the LED's it's a halogen bulb for high beam.

RXSF

yeah its technically not bi-xenon. they just call it that

happy1977

So on the standard halogen low beam and fogs, if I changed to HIDs, will the housing handle to higher UV emission? Even if I use the phillips bulb?

Alpy64

Correct but also available in France since 2009- 2010, when the RX 450h was available but with a given package called "president", with the two leds, xenon, and active/adaptative and not only in 2012

See my car pictures attached (2010)



Very nice design indeed