I have a 99 Jeep Grand Cherokee, I am getting older(75) but it seems the lights are getting dimmer and it is harder to see @ nite. Is it worth replacing them?
Headlight lamps do get dimmer as they age. So if the headlight lamps are old, replacing them might show an improvement. Also check to see if the headlight lenses are cloudy/yellowed.
Tester
There are products that can be used to clean up yellow / cloudy plastic lenses which can make a big difference…