A light emitting diode (LED) bulb includes a base, a low beam emitter on the base configured to generate light rays to form a low beam, and a high beam emitter on the base configured to generate light rays to form a high beam. The low beam emitter includes two substrates separated by a core and configured as a heat sink, at least two low beam light emitting diode (LED) dice mounted to the substrates configured to emit the low beam light rays, and a shutter configured to block some of the low beam light rays and to shape the low beam. A lighting system includes the light emitting diode (LED) bulb and a reflector configured to generate the high beam and the low beam. In addition, the (LED) bulb can be retrofitted to conventional lighting systems, such as automotive lighting systems, having conventional reflectors.