The finest upgrade you can make to factory turn signals; available in dual filament or single filament applicationsDual 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 bulbSingle filament design features the fire ring LEDs and the cluster of LEDs behind the lens light as one and are for rear turn signal applications with a light socket for an 1156 type bulbSimple plug-and-play installationSold in pairsNote: For OEM functionality, all front applications require dual filament kits and rear applications require single filament kits except 09-10 XL883N and 07-10 XL1200N models which require dual filament kits.NOTE: A load equalizer will be need to be purchased separately.