Embodiments relate to a lighting device that includes or retains a plurality of solid-state light emitters and is capable of providing one or more of omni-directional lighting and task lighting. Other embodiments relate to modular lighting systems for providing the same.

Embodiments relate to a lighting device that includes or retains a plurality of solid-state light emitters and is capable of providing one or more of omni-directional lighting and task lighting. Other embodiments relate to modular lighting systems for providing the same.

An anti-loosening light device includes a light bulb and a light socket. One end of the light bulb is screwed into the light socket and is detachably connected to the light socket. The light bulb includes a bulb head and a bulb body. The bulb head is connected to the bulb body. The bulb body is provided with a bulb body positioning part. The bulb body positioning part is connected to the light socket. The light socket includes a socket body and socket limiting parts. The socket limiting parts are connected to the socket body. One end of the light bulb is inserted into the socket body. The bulb body positioning part is installed on the socket limiting parts. The bulb body positioning part and the socket limiting parts are engaged with each other.

An LED lamp that can take the place of incandescent lamps. An elevated light source is positioned above a screw-type base. A first plurality of LEDs is connected in a series on one side of a flat substrate and a second plurality of LEDs, equal in number to the first, is connected in series on an opposite side of the substrate. Each LED of the first and second plurality of LEDs is mounted proximate a heat sink and a drive circuit is provided for the LEDs, with the drive circuit being located proximate and electrically connected to the screw base.

An LED lamp that can take the place of incandescent lamps. An elevated light source is positioned above a screw-type base. A first plurality of LEDs is connected in a series on one side of a flat substrate and a second plurality of LEDs, equal in number to the first, is connected in series on an opposite side of the substrate. Each LED of the first and second plurality of LEDs is mounted proximate a heat sink and a drive circuit is provided for the LEDs, with the drive circuit being located proximate and electrically connected to the screw base.

An LED lighting device or LED lamp comprises one or more LED packages, and a switch comprising at least two selectable positions. At least one selectable position corresponds to a set operating mode and one selectable position corresponds to a configurable operating mode. When the switch is in the selectable position corresponding to the set operating mode, responsive to receiving an indication of user input for selecting user-selected operating light qualities, the one or more LED packages continue to be operated in accordance with the predefined operating light qualities corresponding to the set operating mode. When the switch is in the selectable position corresponding to the configurable operating mode, responsive to receiving an indication of user input for selecting user-selected operating light qualities, operation of the one or more LED packages is modified in accordance with the user-selected operating light qualities.

An LED lighting device or LED lamp comprises one or more LED packages, and a switch comprising at least two selectable positions. At least one selectable position corresponds to a set operating mode and one selectable position corresponds to a configurable operating mode. When the switch is in the selectable position corresponding to the set operating mode, responsive to receiving an indication of user input for selecting user-selected operating light qualities, the one or more LED packages continue to be operated in accordance with the predefined operating light qualities corresponding to the set operating mode. When the switch is in the selectable position corresponding to the configurable operating mode, responsive to receiving an indication of user input for selecting user-selected operating light qualities, operation of the one or more LED packages is modified in accordance with the user-selected operating light qualities.

A lighting device includes at least one semiconductor light source, at least one incandescent filament configured to emit electromagnetic radiation when energized, and a carrier supporting both the semiconductor light source and the incandescent filament. A screen is defined by the carrier between the semiconductor light source and the incandescent filament, so as to shield the semiconductor light source from the electromagnetic radiation emitted by the incandescent filament. The incandescent filament connected in series with the at least one semiconductor light source.

A lighting device includes at least one semiconductor light source, at least one incandescent filament configured to emit electromagnetic radiation when energized, and a carrier supporting both the semiconductor light source and the incandescent filament. A screen is defined by the carrier between the semiconductor light source and the incandescent filament, so as to shield the semiconductor light source from the electromagnetic radiation emitted by the incandescent filament. The incandescent filament connected in series with the at least one semiconductor light source.

A light emitting device including a bulb having a side surface, a board elongated longer in a first direction than in a second direction perpendicular to the first direction, and a plurality of light emitting elements mounted on the board. Each of the plurality of light emitting elements has an upper surface and a lower surface opposite to the upper surface, where the lower surface is mounted on the board. The device includes a plurality of sets of metal plates and leads electrically connected to the plurality of light emitting elements, and a wavelength conversion member covering the light emitting elements and a portion of each of the metal plates. The board, the light emitting elements, the sets of metal plates and leads, and the wavelength conversion member are disposed in the bulb. The upper surface of each of the light emitting elements faces the side surface of the bulb.