We have done our homework to make sure these headlights are as durable as possible. We designed a 3D Printed boot that replaces the stock rubber boot that keeps water out of the headlight. We add extra sealant between the lens and the housing, and seal up any other openings in the headlight that might let water and dust enter. The LAST thing you want is new headlights that fill with dust or condensation after a few months. We want your lights to last as long as possible.