A lamp system (10) includes a straight tube type lamp (13) and a socket (14). The straight tube type lamp (13) includes a straight tube type cover (20) containing a light-emitting element, and caps (23) arranged at both ends of the cover (20). A pair of lamp pins (30) whose tips respectively protrude in directions intersecting a lamp longitudinal direction are protrudingly provided on end faces of the caps (23) at both the ends. The socket (14) includes a socket body (41), a rotor (42) which is arranged in the socket body (41) and on which the pair of lamp pins (30) of the straight tube type lamp (13) are mounted, and a pair of terminals to which the pair of lamp pins (30) mounted on the rotor (42) are connected. At least the rotor (42) can move in the lamp longitudinal direction.

A lamp system (10) includes a straight tube type lamp (13) and a socket (14). The straight tube type lamp (13) includes a straight tube type cover (20) containing a light-emitting element, and caps (23) arranged at both ends of the cover (20). A pair of lamp pins (30) whose tips respectively protrude in directions intersecting a lamp longitudinal direction are protrudingly provided on end faces of the caps (23) at both the ends. The socket (14) includes a socket body (41), a rotor (42) which is arranged in the socket body (41) and on which the pair of lamp pins (30) of the straight tube type lamp (13) are mounted, and a pair of terminals to which the pair of lamp pins (30) mounted on the rotor (42) are connected. At least the rotor (42) can move in the lamp longitudinal direction.

The present invention provides a U-shaped luminaire, comprises a lamp head module, a first glass tube, a second glass tube, a first light source board, a second light source board and a light transmission module, said lamp head module engaging said first glass tube and said second glass tube respectively, said first light source board being located within said first glass tube, said second light source board being located within said second glass tube and said light transmission module engaging said first glass tube and said second glass tube respectively.

The present invention provides a U-shaped luminaire, comprises a lamp head module, a first glass tube, a second glass tube, a first light source board, a second light source board and a light transmission module, said lamp head module engaging said first glass tube and said second glass tube respectively, said first light source board being located within said first glass tube, said second light source board being located within said second glass tube and said light transmission module engaging said first glass tube and said second glass tube respectively.

An LED driving device includes a converter module configured to receive an input voltage and generate an output voltage for driving a plurality of LEDs. A surge protection module is electrically connected to the converter module. A case holds the converter module and the surge protection module, and provides electrical coupling therebetween.

A ceiling light LED retrofit kit is provided. The kit is configured for attachment to an existing, installed linear fluorescent tube lighting fixture. The kit includes a light panel, a first profile extending along a first longitudinal side of the existing fluorescent light fixture, and a second profile extending along a second longitudinal side of an existing light fixture. The retrofit kit light panel includes light emitting diodes. A raceway may be defined between the retrofit kit and the previously-installed fixture, in which wiring and other components may reside away from you.

A light source that is adapted to replace existing fluorescent tubes in an existing fluorescent light fixture is disclosed. The light source includes a plurality of LEDs mounted on a heat-dissipating structure, first and second plug adapters that mate with the florescent tube connectors of the fluorescent tube the light source is to replace, and a power adapter that converts power from a fluorescent tube ballast presented on the first and second plug adapters to DC power that powers the LEDs. The light source is powered from the output of the existing fluorescent ballast. The light source can utilize the existing metallic enclosure as a heat-radiating surface and/or direct air heat transfer from the surface of the heat-dissipating structure.

A light source that is adapted to replace existing fluorescent tubes in an existing fluorescent light fixture is disclosed. The light source includes a plurality of LEDs mounted on a heat-dissipating structure, first and second plug adapters that mate with the florescent tube connectors of the fluorescent tube the light source is to replace, and a power adapter that converts power from a fluorescent tube ballast presented on the first and second plug adapters to DC power that powers the LEDs. The light source is powered from the output of the existing fluorescent ballast. The light source can utilize the existing metallic enclosure as a heat-radiating surface and/or direct air heat transfer from the surface of the heat-dissipating structure.

A tube that is at least partially optically transmissive. An LED mounted on a substrate is positioned in the tube and is operable to emit light through the tube when energized through an electrical path. Pins are in the electrical path. An electrical conductor electrically couples the pins to the electrical path, the electrical conductor is biased into engagement with an electrical contact on the substrate. The substrate may be secured to the tube by an adhesive. The substrate may be secured to the end caps and be suspended in the tube.

An LED control system is provided for connection to an LED lighting system via a power line to control the LED lighting system using commands formed by manipulation of frequency and amplitude of a signal transmitted over the power line. The signal may be for example a wave or a sequence of pulses. The signal may be provided in superposition with line power or the line power may be formed as the signal.