Abstract: An alternating-current LED drive circuit, comprising a plurality of LED strings connected between an alternating-current voltage source and a ground, any one of the LED strings being correspondingly provided with a conversion switch and one or more LED light sources being connected in series in any one of the LED strings; a voltage detection unit used for detecting a voltage root mean square value of an alternating-current power supply signal in the connected alternating-current voltage source; and a switching logic control unit used for outputting, according to a voltage interval into which the voltage root mean square value detected by the voltage detection unit falls, a conversion control signal corresponding to the voltage interval to each conversion switch to corresponding to each LED string respectively control each conversion switch to perform a corresponding conversion action, the conversion action of each conversion switch enabling all LED strings to be connected in series or in parallel to adapt to

Abstract: An alternating-current LED drive circuit, comprising a plurality of LED strings connected between an alternating-current voltage source and a ground, any one of the LED strings being correspondingly provided with a conversion switch and one or more LED light sources being connected in series in any one of the LED strings; a voltage detection unit used for detecting a voltage root mean square value of an alternating-current power supply signal in the connected alternating-current voltage source; and a switching logic control unit used for outputting, according to a voltage interval into which the voltage root mean square value detected by the voltage detection unit falls, a conversion control signal corresponding to the voltage interval to each conversion switch to corresponding to each LED string respectively control each conversion switch to perform a corresponding conversion action, the conversion action of each conversion switch enabling all LED strings to be connected in series or in parallel to adapt to

Abstract: An integrated LED module at least comprises: a light-transmitting plate having a heat-conducting substrate and a transparent package; an LED array sealed in the light-transmitting plate; a drive circuit electrically connected to the LED array, and used for converting an external power supply into a 12V-75V forward voltage that drives each LED in the LED array; and a heat sink clinging to the light-transmitting plate. The integrated LED module solves the problem in the prior art that an LED lamp presented after assembly has a large size and is heavy as a part of the line of a drive power supply in the LED lamp is complicated, and further reduces material costs, saves processing and assembling time, and lowers production costs due to an integrally formed structure.

Abstract: The present invention relates to a drive circuit of an light-emitting diode (LED) module, which includes: an LED array including a plurality of parallel groups connected in series; a power supply module for converting an external power supply into a 12V-75V forward voltage that drives each LED in the LED array; and a control module for controlling different gating switches to perform a conduction or cutoff operation according to a detected input voltage. The solution in accordance with the present invention can provide regular AC power for the LED array, without the need of providing an electrolytic capacitor. The present invention further overcomes design defects of a DC solution, optimizes the performance of a bulb, and reduces a manufacturing cost of the bulb. Compared with other lighting technologies, the AC solution reduces a total arrangement cost of the LED.

Abstract: The present invention relates to a drive circuit of an light-emitting diode (LED) module, which includes: an LED array including a plurality of parallel groups connected in series; a power supply module for converting an external power supply into a 12V-75V forward voltage that drives each LED in the LED array; and a control module for controlling different gating switches to perform a conduction or cutoff operation according to a detected input voltage. The solution in accordance with the present invention can provide regular AC power for the LED array, without the need of providing an electrolytic capacitor. The present invention further overcomes design defects of a DC solution, optimizes the performance of a bulb, and reduces a manufacturing cost of the bulb. Compared with other lighting technologies, the AC solution reduces a total arrangement cost of the LED.

Abstract: An integrated LED module at least comprises: a light-transmitting plate having a heat-conducting substrate and a transparent package; an LED array sealed in the light-transmitting plate; a drive circuit electrically connected to the LED array, and used for converting an external power supply into a 12V-75V forward voltage that drives each LED in the LED array; and a heat sink clinging to the light-transmitting plate. The integrated LED module solves the problem in the prior art that an LED lamp presented after assembly has a large size and is heavy as a part of the line of a drive power supply in the LED lamp is complicated, and further reduces material costs, saves processing and assembling time, and lowers production costs due to an integrally formed structure.

Abstract: An LED integrated packaging light source module is provided, which includes a substrate, a plurality of bowl-shaped reflective cups is disposed on the substrate, a blue light LED chip or a red-light LED chip is disposed inside each reflective cup, the ratio between the number of the blue light LED chips and the number of the red-light LED chips on the substrate is 2:1, and a mixed colloid of yellow and green fluorescent powders is coated on the blue light LED chip. In the LED integrated packaging light source module, the bowl-shaped reflective cups set on a substrate, on one aspect, enhance the light emission efficiencies of the blue light LED chip and the red-light LED chip, and on another aspect, improve the heat dissipation of the blue light LED chip, so as to prevent the heat generated by the blue light LED chip from affecting the red-light LED chip, thereby enhancing the reliability of the entire integrated packaging light source module.

Abstract: The present invention relates to a metal halide lamp with a ceramic discharge tube, which includes a ceramic discharge tube and two electrodes. The ceramic discharge tube includes a main discharge tube and two ceramic capillary tubes respectively located at two ends of the main discharge tube, the main discharge tube has a central protuberant part located in the middle thereof and two cylindrical parts respectively connected to two ends of the central protuberant part, the two cylindrical parts are respectively connected to the two ceramic capillary tubes.

Abstract: A bracket lamp tube and a lamp head cover thereon are provided. The lamp head cover comprises a cover body (2) and a metallic needle (1) penetrating the cover body (2). The front end of the metallic needle (1) extends out of the outside of the cover body (2). The rear end of the metallic needle (1) is located inside the cover body (2) and is fixedly connected to a first metallic contact plate (3). A second metallic contact plate (5) separated from the first metallic contact plate (3) is provided inside the cover body (2). A third metallic contact plate (6) is provided between the first and the second metallic contact plates (3, 5) and is connected to a touch button (4). The touch button (4) is exposed outside the cover body (2). The first and the second metallic contact plates (3, 5) are electrically connected by the third metallic contact plate (6) as the touch button (4) is pressed.

Abstract: A bracket lamp tube and a lamp head cover thereon are provided. The lamp head cover comprises a cover body (2) and a metallic needle (1) penetrating the cover body (2). The front end of the metallic needle (1) extends out of the outside of the cover body (2). The rear end of the metallic needle (1) is located inside the cover body (2) and is fixedly connected to a first metallic contact plate (3). A second metallic contact plate (5) separated from the first metallic contact plate (3) is provided inside the cover body (2). A third metallic contact plate (6) is provided between the first and the second metallic contact plates (3, 5) and is connected to a touch button (4). The touch button (4) is exposed outside the cover body (2). The first and the second metallic contact plates (3, 5) are electrically connected by the third metallic contact plate (6) as the touch button (4) is pressed.

Abstract: An LED integrated packaging light source module is provided, which includes a substrate, a plurality of bowl-shaped reflective cups is disposed on the substrate, a blue light LED chip or a red-light LED chip is disposed inside each reflective cup, the ratio between the number of the blue light LED chips and the number of the red-light LED chips on the substrate is 2:1, and a mixed colloid of yellow and green fluorescent powders is coated on the blue light LED chip. In the LED integrated packaging light source module, the bowl-shaped reflective cups set on a substrate, on one aspect, enhance the light emission efficiencies of the blue light LED chip and the red-light LED chip, and on another aspect, improve the heat dissipation of the blue light LED chip, so as to prevent the heat generated by the blue light LED chip from affecting the red-light LED chip, thereby enhancing the reliability of the entire integrated packaging light source module.

Abstract: The present invention relates to a metal halide lamp with a ceramic discharge tube, which includes a ceramic discharge tube and two electrodes. The ceramic discharge tube includes a main discharge tube and two ceramic capillary tubes respectively located at two ends of the main discharge tube, the main discharge tube has a central protuberant part located in the middle thereof and two cylindrical parts respectively connected to two ends of the central protuberant part, the two cylindrical parts are respectively connected to the two ceramic capillary tubes.