Led lamps ba15d sistar ii series signal construct mbrd151604 this red led lamp is of the ba15d base mounting type and has an input voltage range of 24 to 28v acdc multiple die to ensure long life and a full 360deg output make this lamp an ideal replacement for conventional filament lamps leading to significant time and cost savings sistar ii led signal construct mbrd151604 red 24 28vdcac ba15d