The icy blue tint on the glass cuts out the yellow tint normally seen on most halogen headlights. It does not result in a truly blue tint, as seen on some European-style headlights. Sold in PAIRS.

The 9006XS bulb can be identified by the two prong plug, which points straight down from the bulb. There is a single bump in the plastic housing, between the two prongs.

A 9006 (non-XS) bulb bends at a 90-degree angle, making this style incompatible with a 9006xs.

Additionally, a 9005XS can be distinguished from a 9006XS by the two bumps in the plastic housing, located between the two prongs.