Abstract: An LED fluorescent lamp connected to an electronic fluorescent lamp ballast comprises a plurality of external connection pins having at least, a first connection pin connected to a terminal of the electronic fluorescent lamp ballast and a second connection pin connected to another terminal of the electronic fluorescent lamp ballast, an LED array including a plurality of LEDs connected in series, one or more diodes connected in series between the first connection pin and the second connection pin, one or more resistors connected in series between the first connection pin and the second connection pin. The LED array, the one or more resistors and the one or more diodes are connected in series with each other between the first connection pin and the second connection pin.

Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitor pairs connected to each of the external connection pins, diodes connected to each of the capacitor pairs and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor pair, a first diode, an LED array, a second diode, a second capacitor pair and a second external connection pin are connected in series. Here, the first and second capacitor pairs include capacitors connected back to back. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.

Abstract: Provided is a Light Emitting Diode (LED) lamp. The LED lamp includes: four external connection pins including at least two connection pins connected to a ballast stabilizer for a fluorescent lamp; an LED array in which a plurality of LEDs are connected in series; and at least a pair of capacitors formed between the LED array and the external connection pin, wherein in each of the at least a pair of capacitors, two polarized capacitors are connected in series with a back-to-back method.

Abstract: Provided is an apparatus for sealing an arc-tube including a jig body including an electrode pin hole into which an end part of the electrode pin inserted into a bypass tube part of the arc-tube is inserted and a connection path connected with the electrode pin hole; and a pressurizing means inserted into the connection path to pressurize and fix the electrode pin positioned at the electrode pin hole. Therefore, the apparatus for sealing an arc-tube can more easily and stably fix the electrode pin during a sealing process.

Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitor pairs connected to each of the external connection pins, diodes connected to each of the capacitor pairs and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor pair, a first diode, an LED array, a second diode, a second capacitor pair and a second external connection pin are connected in series. Here, the first and second capacitor pairs include capacitors connected back to back. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.

Abstract: Provided is a Light Emitting Diode (LED) lamp. The LED lamp includes: four external connection pins including at least two connection pins connected to a ballast stabilizer for a fluorescent lamp; an LED array in which a plurality of LEDs are connected in series; and at least a pair of capacitors formed between the LED array and the external connection pin, wherein in each of the at least a pair of capacitors, two polarized capacitors are connected in series with a back-to-back method.

Abstract: An LED fluorescent lamp connected to an electronic fluorescent lamp ballast comprises a plurality of external connection pins having at least, a first connection pin connected to a terminal of the electronic fluorescent lamp ballast and a second connection pin connected to another terminal of the electronic fluorescent lamp ballast, an LED array including a plurality of LEDs connected in series, one or more diodes connected in series between the first connection pin and the second connection pin, one or more resistors connected in series between the first connection pin and the second connection pin. The LED array, the one or more resistors and the one or more diodes are connected in series with each other between the first connection pin and the second connection pin.

Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitors connected to each of the external connection pins, diodes connected to each of the capacitors and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor, a first diode, an LED array, a second diode, a second capacitor and a second external connection pin are connected in series. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.

Abstract: Disclosed therein is a straight type lamp including: a lamp body; and a pair of sockets fit to both ends of the lamp body. At least one of the sockets includes: a socket housing; a plurality of terminal pins, each of which includes an input terminal protruding to one side of the socket housing and an output terminal arranged inside the socket housing; a push button protruding to one side of the socket housing; and a plurality of elasticity switches, each of which is electrically connected with the terminal pin when the push button moves backwardly and which is electrically disconnected from the terminal pin when the push button returns to its original position.

Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp includes an LED array including a plurality of external connection pins having at least, a first connection pin connected to a terminal of the electronic fluorescent lamp ballast and a second connection pin connected to another terminal of the electronic fluorescent lamp ballast; an LED array including a plurality of LEDs connected in series; one or more circuit breakers connected in series between the first connection pin and the second connection pin; and one or more diodes connected in series between the first connection pin and the second connection pin, wherein the LED array, the one or more circuit breakers, and the one or more diodes are connected in series each other between the first connection pin and the second connection pin.

Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitors connected to each of the external connection pins, diodes connected to each of the capacitors and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor, a first diode, an LED array, a second diode, a second capacitor and a second external connection pin are connected in series. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.

Abstract: A light-emitting diode (LED) fluorescent lamp which can replace a typical fluorescent lamp is provided. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; first through fourth connection pins; first through fourth capacitors connected to the first through fourth connection pins, respectively; a first diode having an commonly connected to second ends of the first and third capacitors and a cathode connected to a first end of the LED array; a second diode having an anode connected to a second end of the LED array and a cathode commonly connected to second ends of the second and fourth capacitors. The LED fluorescent lamp can replace a typical fluorescent lamp without a requirement of the installation of additional equipment or the change of wiring.

Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitors connected to each of the external connection pins, diodes connected to each of the capacitors and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor, a first diode, an LED array, a second diode, a second capacitor and a second external connection pin are connected in series. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.

Abstract: Disclosed therein is a straight type lamp including: a lamp body; and a pair of sockets fit to both ends of the lamp body. At least one of the sockets includes: a socket housing; a plurality of terminal pins, each of which includes an input terminal protruding to one side of the socket housing and an output terminal arranged inside the socket housing; a push button protruding to one side of the socket housing; and a plurality of elasticity switches, each of which is electrically connected with the terminal pin when the push button moves backwardly and which is electrically disconnected from the terminal pin when the push button returns to its original position.

Abstract: A light-emitting diode (LED) fluorescent lamp which can replace a typical fluorescent lamp is provided. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; first through fourth connection pins; first through fourth capacitors connected to the first through fourth connection pins, respectively; a first diode having an commonly connected to second ends of the first and third capacitors and a cathode connected to a first end of the LED array; a second diode having an anode connected to a second end of the LED array and a cathode commonly connected to second ends of the second and fourth capacitors. The LED fluorescent lamp can replace a typical fluorescent lamp without a requirement of the installation of additional equipment or the change of wiring.

Abstract: A light-emitting diode (LED) fluorescent lamp which can replace a typical fluorescent lamp is provided. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; first through fourth connection pins; first through fourth capacitors connected to the first through fourth connection pins, respectively; a first diode having an commonly connected to second ends of the first and third capacitors and a cathode connected to a first end of the LED array; a second diode having an anode connected to a second end of the LED array and a cathode commonly connected to second ends of the second and fourth capacitors. The LED fluorescent lamp can replace a typical fluorescent lamp without a requirement of the installation of additional equipment or the change of wiring.

Abstract: A light emitting diode (LED) fluorescent lamp includes an external connection pin including a first connection pin and a second connection pin, an LED array including a plurality of light emitting diodes (LEDs) connected in series, a current stabilizing capacitor connected in parallel to the LED array, and a capacitive element unit connected between the LED array and the external connection pin and configured to vary an impedance of a fluorescent lamp ballast connected to the capacitive element unit through the external connection pin.