Dual-function LED design features a billet aluminum ring with seven exposed LEDs (white, amber or red) integrated into the lens to work as running lights and a cluster of LEDs behind the lens for turn signal and or brake light functions; these fit all front and rear applications with a light socket for an 1157 type bulb, Simple Plug-and-Play installation, For OEM functionality, all front applications require dual-filament kits and rear applications require single filament kits except '09-'16 XL883N, '07-'16 XL1200N/X and '12-'16 1200V models which require dual-filament kits., A load equalizer will need to be purchased separately., Not DOT compliant.