Here's an interesting thread on an MDX forum:
Favor...Pic of headlight pattern
A member has replaced his lamps with TYC housings (perhaps to replace damaged or fogged ones, I don't know), and has asked for a picture of the pattern from the OEM housing. He then posted a picture of the pattern from the TYC housings, and the pattern is completely different. It's very apparent that TYC is not using a Stanley projector as Acura did, and it's possible that the TYC ones don't perform very well at night. They also appear to be completely lacking the area of light above the cutoff to illuminate reflective signs.
This is another example of where, even though an aftermarket part may appear to be identical to the OEM, you never really know what you're going to get in the aftermarket.
Favor...Pic of headlight pattern
A member has replaced his lamps with TYC housings (perhaps to replace damaged or fogged ones, I don't know), and has asked for a picture of the pattern from the OEM housing. He then posted a picture of the pattern from the TYC housings, and the pattern is completely different. It's very apparent that TYC is not using a Stanley projector as Acura did, and it's possible that the TYC ones don't perform very well at night. They also appear to be completely lacking the area of light above the cutoff to illuminate reflective signs.
This is another example of where, even though an aftermarket part may appear to be identical to the OEM, you never really know what you're going to get in the aftermarket.