The Denali TriOptic amber lens kit for Denali D2 lights are designed to maximize visibility in foggy and rainy conditions. The amber color of the lens increases visibility in fog and rain by blocking blue frequencies which reflect off water vapor and decrease vision. This Amber lens kit will also match your OEM turn signals. The kit includes two spot lenses and two flood lenses. Use two spots for maximum distance, two floods for maximum spread, or one of each to create a 50/50 True-Hybrid that combines the best of both worlds.