Patent ID: 7976191
Filing Date: 2011-07-12
Classification: F21S,F21V,F21Y,H05B,Y02B

Abstract:
1. A light string for use with a source of electrical current, said light string comprising: (a) an electrical plug; (b) an electrical receptacle; (c) light-emitting diodes arranged in groups interconnected electrically in series and connected in series with said electrical plug and said electrical receptacle, each group of said groups having plural sets of light-emitting diodes, each set of said plural sets having at least one light-emitting diode, said plural sets being interconnected electrically in parallel; and (d) plural voltage regulators, each voltage regulator of said plural voltage regulators being arranged electrically in parallel with said each group, said each voltage regulator maintaining electrical current in said plural sets of light-emitting diodes of said each group when said at least one light emitting diode in said each group fails.