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This set of four 28mm SMF2 blue festoon LED bulbs converts multiple interior or vanity lights to modern blue LEDs with increased output and dependable operation. Each bulb contains two 5050 SMD LEDs and features an embedded load resistor plus implanted diode for reliability, along with sturdy metal terminals to keep bulbs secure. Measured output at about 24 lumens per bulb gives a clear brightness improvement over incandescent originals, and installation is plug-and-play for standard 28mm sockets.
Diode Dynamics 28mm SMF2 LED Bulb - Blue Set of 4
