An E26 plastic lampholder is composed of a housing, a plastic bracket, a plastic threaded ring, a positive electrode plate and a negative electrode plate and installed to a downlight. The lampholder has two wire plug slots for plugging two electrodes of a power line by a bare line section, so that a power source is introduced with a convenient operation. The plastic bracket and the housing of the E26 plastic lampholder are made of a plastic material, and a combining groove is reserved on the housing 1 and provided for installing and positioning the plastic bracket, or the housing and the plastic bracket are integrally formed for a more convenient assembling operation. In the meantime, the plastic threaded ring of the E26 plastic lampholder is integrally formed in the housing, so as to facilitate the manufacturing and assembling processes.

A lamp socket includes a first socket portion, a second socket portion, and a neck portion joining the first and the second socket portions. The first socket portion defines a first cylindrical volume proximate to an open end of the lamp socket. The second socket portion is concentric with the first socket portion and defines a second cylindrical volume distal from the open end of the lamp socket. The second socket portion has a smaller diameter than the first socket portion.

The present invention discloses an illumination device (100). The illumination device (100) comprises a light source (110) arranged to generate light, a carrier (120) arranged to support the light source and an envelope (130) enclosing the light source and the carrier. The envelope comprises at least two enveloping parts which, when joined together, form the envelope. Further, the carrier is arranged in thermal contact with at least one of the enveloping parts for dissipating heat out of the illumination device.

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 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 lamp includes a first body and a second body. The first body has a protrusion, a first engaging portion and two ribs. The second body has a second engaging portion which is engaged with the first engaging portion. The second engaging portion has two L-shaped connection slots with which the ribs are engaged.

The second body has a first guide path and three second guide path. Two inclined ramps are located in the first guide path so that the protrusion of the first body slides along the inclined ramps to guide the first engaging portion to be engaged with the second engaging portion. The protrusion is restricted by the contact faces of the blocks to restrict that the second body can only be rotated in one direction to engage the ribs with the connection slots.

The present invention relates to a filament (100) comprising a light transmissive tubular member (110), a light emitting assembly (106) arranged within the tubular member (110), a wavelength converter (112) arranged at a surface of the tubular member (110) and configured to convert light from a first wavelength range to a second wavelength range. The light emitting assembly (106) comprises a plurality of solid state light sources (102) and interconnecting elements (104) being arranged in an alternating manner to form a string (106) of connected solid state light sources (102) and interconnecting elements (104). The interconnecting elements are portions of a lead frame (104) and at least a part of the plurality of solid state light sources (102) are arranged on opposite sides of the lead frame (104) in an alternating manner. The inventive filament (100) is simple, easy and cheap to manufacture, thus providing a good replacement and approximation for an incandescent wire.

The present invention relates to a lighting device (11) comprising a light emitting portion with at least two solid state light sources, SSL (18). The light emitting portion includes a first cover member (12a) with a first light source carrier (13a) and a first light transmitting portion (14), a second cover member (12b) with a second light source carrier (13b) and a second light transmitting portion (14). The first and second cover member are arranged such that a first light transmitting portion is aligned with the second SSL to allow transmission of light emitted from the second SSL through the first cover member, and a second light transmitting portion is aligned with the first SSL to allow transmission of light emitted from the first SSL through the second cover member. According to this design, light emitted from an SSL on one cover member will be transmitted through the other cover member. Dissipation of heat from each SSL may be provided in the other direction, i.e. in a direction opposite to the light emitting direction of each SSL.

An LED lighting device or LED lamp comprising one or more LED packages; and a switch control unit is provided. The switch control unit is configured to operate the one or more LED packages. The switch control unit is in communication with a sensor located in a space, the LED lighting device or LED lamp also being located in the space. The switch control unit is configured to (i) receive a sensor signal from the sensor, (ii) process the sensor signal, (iii) determine an adjustment to the operating light qualities of the LED lighting device or LED lamp based on the processing of the sensor signal and one or more goal light qualities corresponding to the space, and (iv) adjust the operation of the one or more LED packages in accordance with the adjustment.

A luminaire includes a housing and a light source carried by the housing. The housing may include a first and second set of light emitting elements and a lens assembly. The lens assembly may include a lens with a first refraction section having a surface smoothness within a first range, and a second refraction section having a surface smoothness within a second range. The lens assembly may include a plurality of light source receiving members with each light source receiving member comprising a ridge. The first and second set of light emitting elements may be configured to emit light at a first and second beam angle. The light emitted by the first set and second set of light emitting elements may form a combined light with a center beam and gradient wherein the center beam has a greater candle power than the gradient.