Patent ID: 7557462

Claim:
A light emitting diode flexible printed circuit, comprising: at least two light emitting diodes; a switching unit interconnecting the at least two light emitting diodes, the switching unit comprising at least one switch, and each of the at least one switch interconnecting two corresponding adjacent of the at least two light emitting diodes, each of the at least one switch comprising a first terminal, a second terminal, and a common terminal; and a first lead and at least two second leads, the first lead connecting with the switching unit, all but one of the at least two second leads connecting with the switching unit, and a last one of the at least two second leads connecting with a last one of the at least two light emitting diodes; wherein a beginning terminal of a first one of the at least two light emitting diodes is connected to the first lead, and an end terminal of each of the at least two light emitting diodes is connected to a corresponding one of the at least two second leads; and wherein the switching unit is configured for switching the at least two light emitting diodes between a series connection state and a parallel connection state.