Whats the dif in 88-89 and 90-91 crx head light's

Whats the dif in 88-89 and 90-91 crx head light's let me know thanks

The only thing different is the bracket they mount on. The glass part is the same.

well the turn signals lamps were screwed in on the sides on the 88-89 models and the 90-91 were like sliding plastic pieces.

The 90-91 headlights have moisture vents the the 88-89's dont have.