Patent ID: 7265496

Claim:
A light string comprising: a front plug and a rear plug, each plug having at least one of a positive connection and a negative connection; first and second groups of rectifying diodes, each group comprising two rectifying diodes, with negative ends of the two rectifying diodes of the first group being connected in parallel and positive ends of the two rectifying diodes of the first group being connected with the positive and negative connection of the front and rear plugs respectively, and positive ends of the two rectifying diodes of the second group being connected together in parallel and negative ends of the two rectifying diodes of the second group being connected with the positive and negative connection of the front and rear plugs respectively; at least one junction box interposed between said first and second groups, said junction box comprising four junction diodes, with positive ends of a first two junction diodes being connected in parallel and negative ends of the first two junction diodes being connected with the positive and negative connection of the front and rear plugs respectively, and negative ends of the 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 connection of the front and rear plugs respectively; a first LED serial set connected between the negative ends of the rectifying diodes of the first group and the positive ends of the first two junction diodes; and a second LED serial set connected between the negative ends of the second two junction diodes and the positive ends of the rectifying diodes of the second group.