LED:3157Y30W | 3157 LED bulbs, pair/30 watt/Yellow/Amber,� A set of 12 volt 3157 LED bulbs are used in various locations on your car or truck such as for LED front signal lights, LED Tail lght bulbs, LED Backup Light Bulbs and other areas. Check your owners manual to be sure they will fit. Standard 3157 LED bulbs �