Upgrading your 2004-2009 Corolla with LED headlights, typically using 9005 (high beam) and 9006 (low beam) bulbs, is a popular way to achieve significantly brighter, modern-looking white light that's far superior to factory halogen bulbs . You can choose between simple plug-and-play LED bulbs that fit the stock housing or aftermarket projector headlight assemblies that often include stylish features like LED daytime running lights (DRLs), providing a more complete and custom front-end upgrade .