| 摘要 |
The present disclosure provides a decorative light string system comprising a light string comprising a plurality of lighting bulbs arranged electrically in series, wherein each light bulb comprises at least two LED chips, wherein half of said LED chips are connected in parallel and wherein half of said LED chips are connected in reverse parallel; and a switch box, and a switchbox comprising a switch having at least a first position and a second position, wherein when the switch is in the first position, a first pole is engaged allowing passage of a positive waveform lighting the LEDs connected in parallel, and wherein when the switch is in a second position, a second pole is engaged allowing passage of a negative waveform lighting the LEDs connected in reverse parallel; as well as methods of using said decorative light string system. |
