S25 1157 40 3528SMD Built-in Can-bus LED Bulbs Technical Parameter: Model: S25 1157 40 3528SMD Built-in Can-bus LED Bulbs Socket Base: S25 1157 Socket Base option: S25 1156/157, T20 7440/7443, T25 3156/3157 Voltage: DC 12V/24V Chips: 40x 3528SMD Color Option：White, Blue, Red, Yellow(Amber), Green, Pink and Purple. Application: Brake light,Interior light,Tail light. 1 Built-in Load Resistor 2 Easy play and plug installation 3 Long life-spans 4 Base: S25 1157 Chip: 3528SMD