Patent ID: 8450950

Claim:
A lighting system comprising: a light string, said light string having bulbs containing a first color LED and a second color LED, said LEDs within said bulbs electrically coupled so that a first voltage phase applied to said light string provides a turn-on bias to said first color LEDs within said bulbs and a second voltage phase applied to said light string provides a turn-on bias to said second color LEDs within said bulbs; and a controller electrically coupled to one end of said a light string, said controller having a rectifier for accepting an input electrical power source and providing an output DC electrical power to said light string, said controller having a switch with a plurality of switch positions including: a first switch position for providing said output DC electrical power to said light string in said first voltage phase according to a first rectification provided by said rectifier within said controller, a second switch position for providing said output DC electrical power to said light string in said second voltage phase according to a second rectification provided by said rectifier within said controller, and a third switch position for providing said input electrical power source directly to said output DC electrical power and on to said light string.