Abstract: A lighting device includes a top housing, a connecting member and a lamp. The connecting member is detachably coupled to the top housing, and has at least one latch pivoted on and fixed to a top surface of the connecting member to be operatively engaged to the top housing. The lamp cover is directly or indirectly coupled to the connecting member.

Abstract: The present invention is directed to a lighting device. A lighting unit includes at least one lighting string, and each lighting string includes one or serial-connected lighting elements. An AC/DC power converter converts an AC voltage to a DC voltage, therefore providing a current to the lighting unit. In one embodiment, a detecting unit performs detection to generate a detect signal; in another embodiment, a brightness adjusting unit, after adjustment, generates adjust signals that represent different brightness modes respectively. Subsequently, a resistor network generates a control signal according to the detect signal or the adjust signal, and a switch unit controls the brightness of the lighting unit according to the control signal.

Abstract: A heat sink including an inner piece and an outer piece is provided. The inner piece has a side surface. The outer piece is disposed around the inner piece and has an inner side surface, wherein the side surface of the inner piece is riveted to the inner side surface of the outer piece to form an interface, and an area ratio of the interface and the side surface of the inner piece is between 0.6 and 0.95. The light emitting diode lamp using the heat sink is also provided.

Abstract: The present invention is directed to a light-emitting diode (LED) illumination apparatus. The apparatus includes a housing, an LED substrate, at least two electrical-insulation clamping members and associated screws, and a heat-conduction pad. At least one LED chip is fixed on the surface of the LED substrate. Each electrical-insulation clamping member has a threaded hole for screwing the screw in order to fasten the electrical-insulation clamping member to the housing; and each electrical-insulation clamping member has a recess for clamping the LED substrate. The heat-conduction pad is disposed between the housing and the LED substrate, and is used to conduct heat generated by the LED chip.

Abstract: The present invention is directed to an illumination system adaptable to a cooling appliance. The illumination system includes a lighting module, a mode switch and a controller. Specifically, the lighting module includes at least one lighting device; the mode switch is used to determine a power mode for the lighting module; and the controller provides corresponding power to the lighting device according to the power mode. In one embodiment, the illumination system further includes a heating module having a heater for providing heat to the controller. In another embodiment, the lighting device is disposed near the controller.

Abstract: A lighting device includes a bottom housing, a middle housing, a top housing, and a lamp head. Specifically, the bottom housing has a bottom surface capable of supporting a lighting module. The middle housing is coupled to the top side of the bottom housing. The top housing is coupled to the top side of the middle housing, such that the middle housing is disposed between the bottom housing and the top housing. The lamp head covers the sidewall of the top housing.

Abstract: The present invention is directed to a lighting device. A lighting unit includes at least one lighting string, and each lighting string includes one or serial-connected lighting elements. An AC/DC power converter converts an AC voltage to a DC voltage, therefore providing a current to the lighting unit. In one embodiment, a detecting unit performs detection to generate a detect signal; in another embodiment, a brightness adjusting unit, after adjustment, generates adjust signals that represent different brightness modes respectively. Subsequently, a resistor network generates a control signal according to the detect signal or the adjust signal, and a switch unit controls the brightness of the lighting unit according to the control signal.

Abstract: A lighting device includes a bottom housing, a middle housing, a top housing, and a lamp head. Specifically, the bottom housing has a bottom surface capable of supporting a lighting module. The middle housing is coupled to the top side of the bottom housing. The top housing is coupled to the top side of the middle housing, such that the middle housing is disposed between the bottom housing and the top housing. The lamp head covers the sidewall of the top housing.

Abstract: A lamp head module is disclosed in this invention. The lamp head module includes a lamp head, a cover, and a power module. The cover is disposed on the lamp head, and the power module is enclosed within the inner space of the cover and the lamp head.

Abstract: The present invention is directed to a lighting master, which includes a base and a lighting module. A region defined between the base and a housing accommodates a power module. The lighting module is disposed over the base. The base has an outer surface to be bonded with an inner surface of the housing.

Abstract: Report systems and methods using light-emitting diode lamps are disclosed. The report systems and methods feature in that a local geographic information is measured, a light with a color temperature indicating the local geographic information is emitted, and the color temperature is reported.