Abstract: A light emitting diode illumination device comprises a light-transmitting encapsulant, a transparent core, a light source plate stereoscopic structure and a power supply device. The light-transmitting encapsulant and the transparent core can be made of glass material. The light source plate stereoscopic structure is constituted by a plurality of connecting sub-light source plates. The light source plate stereoscopic structure installed in the light-transmitting encapsulant is connected to the transparent core, and is supported by the transparent core. The sub-light source plate comprises a circuit board body and light-emitting diode dies. The light-emitting diode dies can be installed on one surface of the circuit board body by surface-mount technology. The power supply device is used for supplying power to the sub-light source plates, so that a plurality of sub-light source plates may provide illumination through the light-transmitting encapsulant.

Abstract: An LED filament light including a bulb, a support bar, at least two electrode wires and at least two LED filament strips. Each LED filament strip including a base, an LED chip is set on the base and an electrode chip is fixed at both ends of the base. One end of the electrode chip is electrically connected with an LED chip on the base, the other end of the electrode chip is electrically connected with an electrode chip of another LED filament or electrically connected to one end of the electrode wires so that the support bar is fixed to the bulb, and the other end is connected with at least one. As the support bar is set to replace the existing LED filament light core and metal wire, and creatively the LED filament electrode chips directly is connected to each other.

Abstract: An LED device is disclosed. The LED device comprises a first LED light string, a second LED light string, a rectifying module, and a control unit. The control unit generates a driving current flowing through the first LED light string and the second LED light string. The control unit cuts off the driving current when the input signal is between a threshold voltage and a sum voltage.

Abstract: An LED driver circuit includes a rectifying module, a control unit, and at least two LED light strings. The control unit includes a voltage input detection terminal and a switch assembly. The voltage input detection terminal is configured to detect the waveform of the voltage input. The switch assembly changes the way of connection between the LED light strings according to the waveform of the voltage input.

Abstract: An LED device is disclosed. The LED device comprises a PWM controller. A phase dimmer produces a regulated signal. The PWM controller converts the regulated signal into a switching signal in a series mode and optionally converts the rectified signal into the switching signal in the parallel mode.

Abstract: An LED driver circuit includes a rectifying module, a control unit, and at least two LED light strings. The control unit includes a voltage input detection terminal and a switch assembly. The voltage input detection terminal is configured to detect the waveform of the voltage input. The switch assembly changes the way of connection between the LED light strings according to the waveform of the voltage input.