Originally Posted By: SteveSRT8
Thanks for pointing out the differences. BTW people can trim the bulbs and install HIR's in almost anything.
Yes, they can be installed in any HB3/HB4 base, as the shape of the bulb-to-housing interface is the same. Any other base (like an H9/H11 or others) are not compatible at all.
Originally Posted By: SteveSRT8
I was more interested in the beam pattern as that's one of the things I do NOT like about the modern headlight designs. The ultra-abrupt cutoff is moving and distracting at first.
Honestly, this is one of the reasons I don't prefer HID lighting systems. The light output is so bright, and necessarily aimed where it is to prevent glare, that it's hard for my eyes to focus down the road. Tons of foreground light, very little (to no) distance light. So my distance vision ends up being worse than with standard lights.
I think something with an HIR setup is the best compromise. H11s used to be about as good as it got with standard halogen systems, but I'm real glad to see HIRs being used at the OEM level on "normal" cars these days (the comment about the Dodge Viper was correct, but few could benefit from that system). Frankly, I'd like to see everything with separate main and dip beam segments move to HIR technology. I'd REALLY like to see them adapt HIR technology to dual-filament bulbs (like the H4s in my Honda), but that may be asking too much.