211 LED Festoon Dome Bulbs 6 5050SMD 41mm Built-in Can-bus Technical Parameter: Model: 211 LED Festoon Dome Bulbs 6 5050SMD 41mm Built-in Can-bus Socket Base: 211 Voltage: DC 12V/24V Chips: 6x5050SMD Length option: 39mm，41mm Color Option：White, Blue, Red, Yellow(Amber), Green, Pink and Purple. Application: Interior Reading Lights, Trunk Lights and license plate lights, etc. 1 Built-in Load Resistors 2 Easy play and plug installation 3 Long life-spans 4 Base: 211 Chip: 5050SMD