Abstract: Pursuant to some embodiments, an LED lighting device is provided that includes an elongated lamp tube, two end caps, each of the two end caps coupled to a respective end of the elongated lamp tube, an LED light bar disposed on an inner surface of the elongated lamp tube, the LED light bar having a plurality of LED light sources mounted thereon, a power source disposed on at least a first end of the lamp tube, the power source electrically connected to the plurality of LED light sources, and a reflective strip disposed on the inner surface of the elongated lamp tube in a position diametrically opposite the LED light bar.

Abstract: A driving circuit and a method for operating the driving circuit is provided for a lamp, the lamp includes a lighting unit, and a first and a second pair of connection pins for coupling the driving circuit to a power supply unit. The driving circuit includes a pre-heating detection circuit and a protection circuit. The pre-heating detection circuit is coupled to the first pair of connection pins and configured to detect a voltage between the first pair of connection pins and output a reference voltage. The protection circuit includes a switching circuit connected in series with the lighting unit, the protection circuit is configured to compare the reference voltage with an input voltage of the lamp and turn on the switching circuit to light the lighting unit when the input voltage of the lamp is greater than the reference voltage.

Abstract: A driving circuit and a method for operating the driving circuit is provided for a lamp, the lamp includes a lighting unit, and a first and a second pair of connection pins for coupling the driving circuit to a power supply unit. The driving circuit includes a pre-heating detection circuit and a protection circuit. The pre-heating detection circuit is coupled to the first pair of connection pins and configured to detect a voltage between the first pair of connection pins and output a reference voltage. The protection circuit includes a switching circuit connected in series with the lighting unit, the protection circuit is configured to compare the reference voltage with an input voltage of the lamp and turn on the switching circuit to light the lighting unit when the input voltage of the lamp is greater than the reference voltage.

Abstract: The present invention discloses an LED lighting assembly configured to retrofit a fluorescent tube, comprising at least one LED, and a driving circuit configured to drive the at least one LED. The driving circuit comprises a switch control module and a rectifying circuit. The driving circuit is connected to the at least one LED and configured to receive and process an AC voltage signal from one side or both sides of the LED lighting assembly, and control the driving of the at least one LED based on the processed voltage signal. The rectifying circuit is connected to the at least one LED and configured to convert an AC power inputted to the rectifying circuit into a DC power supplied to the at least one LED. The present invention also discloses an LED driving circuit configured to retrofit a fluorescent tube.

Abstract: The present invention discloses an LED lighting assembly configured to retrofit a fluorescent tube, comprising at least one LED, and a driving circuit configured to drive the at least one LED. The driving circuit comprises a switch control module and a rectifying circuit. The driving circuit is connected to the at least one LED and configured to receive and process an AC voltage signal from one side or both sides of the LED lighting assembly, and control the driving of the at least one LED based on the processed voltage signal. The rectifying circuit is connected to the at least one LED and configured to convert an AC power inputted to the rectifying circuit into a DC power supplied to the at least one LED. The present invention also discloses an LED driving circuit configured to retrofit a fluorescent tube.