If they’re hid you could try swapping the bulbs to 5000k, that’s the brightest bulb temp. I swapped in 6000k and they seem brighter than stock. I will agree they’re a little on the dimmer side than past cars I be had. Before the blazer I had an 08 528i bmw with stock hid and those were brighter. Car before that I put in custom FXR projectors and those things lit up the road like daytime.