Sensibulb™ is an LED cabin bulb replacement unit which replaces halogen and xenon bulbs without the hazardous heat, high power consumption or UV emissions. Great for overhead lighting and all other cabin lighting applications. This LED replacement for halogen bulbs is mounted on a metal heatsink and has wire leads which simply plug into the halogen G4 bulb pin socket. The beam cast is a broad 120°, so you don't feel like you're reading in the narrow beam of a flashlight.