A pixel-controlled LED light includes a plurality of LED modules and a controller. Each LED module includes at least one LED and a LED drive apparatus. The LED drive apparatus burns an ordinal number according to connection sequence thereof. The controller defines the ordinal number of the LED module as a target number, and sequentially transmits a plurality of light data whose number is greater than or equal to the target number to each of the LED modules. Each of the LED drive apparatuses sequentially receives each of the light data and counts sequence of the light data. If the sequence of the light data is equal to the ordinal number of the LED drive apparatus, the LED drive apparatuses identify the light data, and after identifying the light data, the LED drive apparatuses control the corresponding at least one LED.

A pixel-controlled LED light includes a plurality of LED modules and a controller. Each LED module includes at least one LED and a LED drive apparatus. The LED drive apparatus burns an ordinal number according to connection sequence thereof. The controller defines the ordinal number of the LED module as a target number, and sequentially transmits a plurality of light data whose number is greater than or equal to the target number to each of the LED modules. Each of the LED drive apparatuses sequentially receives each of the light data and counts sequence of the light data. If the sequence of the light data is equal to the ordinal number of the LED drive apparatus, the LED drive apparatuses identify the light data, and after identifying the light data, the LED drive apparatuses control the corresponding at least one LED.

An LED lighting device is disclosed. The LED lighting device includes a first LED circuit and at least one additional LED circuit. The first LED circuit and the at least one additional LED circuit each include LEDs connected in series. The LEDs in the first LED circuit emit a different color of light than the LEDs in the at least one additional LED circuit. The LED lighting device also includes a switch configured to be actuated by an end user and provide the end user with a means to produce a change in brightness of at least one of the first LED circuit or the at least one additional LED circuit, and switch at least one of the first LED circuit and the at least one additional LED circuit on or off.

An LED lighting device is disclosed. The LED lighting device includes a first LED circuit and at least one additional LED circuit. The first LED circuit and the at least one additional LED circuit each include LEDs connected in series. The LEDs in the first LED circuit emit a different color of light than the LEDs in the at least one additional LED circuit. The LED lighting device also includes a switch configured to be actuated by an end user and provide the end user with a means to produce a change in brightness of at least one of the first LED circuit or the at least one additional LED circuit, and switch at least one of the first LED circuit and the at least one additional LED circuit on or off.

A light string and a decorative illumination assembly are provided. The light string includes a first wire, a second wire, a third wire, and a plurality of light emitting devices, the plurality of light emitting devices being linked sequentially by the third wire. The first wire, the second wire, and the third wire are arranged in parallel, and the first wire and the second wire are separately affixed to the third wire. The second wire is connected to a positive electrode of a power supply, negative electrodes of the light emitting devices are connected to the first wire, and positive electrodes of the light emitting devices are connected to the second wire.

An alternating current LED filament includes a base board, rectifier diodes and light-emitting diodes. Two ends of the base board are provided with connecting terminals, and two conductive circuits are arranged on the base board. Two ends of each of the two conductive circuits are respectively connected to an external power supply through an at least one rectifier diode of the rectifier diodes. The rectifier diodes at two ends of a same conductive circuit are arranged in a reversed direction, the rectifier diodes connected to different conductive circuits on a same connecting terminal are arranged in the reversed direction, and the light-emitting diodes are connected to the two conductive circuits. A connecting terminal of the connecting terminals is connected to a corresponding conductive circuit through the at least one rectifier diode to improve a reverse withstand voltage capability.

An alternating current LED filament includes a base board, rectifier diodes and light-emitting diodes. Two ends of the base board are provided with connecting terminals, and two conductive circuits are arranged on the base board. Two ends of each of the two conductive circuits are respectively connected to an external power supply through an at least one rectifier diode of the rectifier diodes. The rectifier diodes at two ends of a same conductive circuit are arranged in a reversed direction, the rectifier diodes connected to different conductive circuits on a same connecting terminal are arranged in the reversed direction, and the light-emitting diodes are connected to the two conductive circuits. A connecting terminal of the connecting terminals is connected to a corresponding conductive circuit through the at least one rectifier diode to improve a reverse withstand voltage capability.

A light emitting device including a first light emitting portion that emits white light at a color temperature of 6000K or more and a second light emitting portion that emits white light at a color temperature of 3000K or less, which include light emitting diode chips and phosphors and are independently driven.

A light emitting device including a first light emitting portion that emits white light at a color temperature of 6000K or more and a second light emitting portion that emits white light at a color temperature of 3000K or less, which include light emitting diode chips and phosphors and are independently driven.

Certain embodiments of the disclosed technology include a decorative lighting system that can be integrated with an artificial tree. The decorative lighting system may include a white light emitting diode (LED) light string and a variable-color LED light string. The variable-color LED light string may employ LED lamps having embedded Red, Green, and Blue (RGB) LEDs. The RGB LED lamps may include an embedded integrated circuit (IC) configured to communicate with and control the energizing of each of the corresponding RGB LEDs to create a multitude of colors and color combinations that can vary with time to create a light show. An electronic controller in communication with the LED lamps may allow a user to select the mode for the light show and further may provide a periodic reset signal to restart or re-synchronize the light show.