The two low-beam headlights have been becoming dimmer slowly over time, causing them to be less effective. I have replaced the headlamps with different types and brands several times, with no noticeable change. This problem results in reduced visibility, a major safety issue when driving at night in poorly lit conditions, and away from urbanized areas. Out of an abundance of caution, we are currently limiting our night travel while we consider our options. I understand that the issue relates to the materials used at the back of the reflector, which degrade prematurely, causing any type of headlamp to become less effective over time, and operating below the intended minimum distance range. Our Honda/Acura dealer is aware of the problem, but their only solutions are to replace both headlight units, at my own expense, or sell the car. Replacing the two headlight units would cost $1,500 in parts alone, plus labor and taxes. Given that this problem highly increases the possibility of a crash when driving at night, Acura should be required by the NHTSA to issue a recall to replace both headlights at no charge.