Signal construct msoc series 1 chip led festoon lamps acdc signal construct msoc113942 a 025w 12v blue led festoon lamp with dimensions of 11 x 39mm this single chip led lamp has an integrated bridge rectifier to make possible ac or dc operation low current consumption and long lifetime make it suitable for a wide range of applications signal construct msoc113942 led festoon bulb blue 12vacdc 025w 11x39mm