StreetEXtremes

For mild condensation take your bulbs out and use a hair dryer. If that doesn't work, you know those little packets of silica absorbent (desiccant) that come in lots of things? Staple a string to them like a teabag and insert them where the bulb goes. Let it sit for 24-36 hours then remove and discard. Reapeat if necessary.

You can also spray white vinegar inside at the lense to clear them up (prevents streaks) and it cuts down on the potential of the chrome housings from rusting.