Patent ID: 7276858

Claim:
An LED light string comprising: an AC input voltage input having a positive terminal and a negative terminal; parallel conductor wires electrically connected to the positive and negative terminals of the AC voltage input; a front rectification and control circuit defines a full wave rectifier comprising four front rectifying diodes electrically connected to the parallel conductor wires; series conductor wires electrically connected to ends of each of two rectifying diodes of said front rectification and control circuit; a rear rectification and control circuit comprising four rear rectifying diodes electrically connected to the parallel conductor wires; at least one junction box interposed between said front and rear rectification and control circuits, said junction box comprising four junction diodes, wherein positive ends of first two junction diodes being connected in parallel and with negative ends of the first two junction diodes being connected with the positive and negative terminals of the AC voltage input respectively, and wherein negative ends of second two junction diodes being connected together in parallel and positive ends of the second two junction diodes being connected with the positive and negative terminals of the AC voltage input respectively; a first LED serial set connected between rectifying diodes of the front rectification and control circuit and the first two junction diodes; and a second LED serial set connected between the second two junction diodes and rectifying diodes of the rear rectification and control circuit.