Bi-color Switchback T25 3157 21 5050SMD Amber/Red Technical Parameter: Model: Bi-color Switchback T25 3157 21 5050SMD Amber/Red Socket Base: T25 3157 Socket Base option: S25 1156/157, T20 7440/7443, T25 3156/3157 Voltage: DC 12V/24V Chips: 21x 5050SMD Color Option：White/Amber, Amber/ Red Application: Brake light,turn signal light 1 Bi-color 5050SMD LED chips 2 Easy play and plug installation 3 Long life-spans 4 Base: T25 3157 Chip: 5050SMD