Abstract: A downlight apparatus includes a light source, a light holder, a driver box, a fixing bracket and two torsion springs. The light holder is used for placing the light source. The light holder has a first side defining a light opening. The driver box is placed on a second side of the light holder. The driver box contains a driver for converting an external power to a driving current supplied to the light source to emit a light from the light opening. The fixing bracket is coupled to the light holder for fixing to an installation cavity. The fixing bracket has a bottom plate and two connector plate. The bottom plate is fixed to the second side of the light holder. The two connector plates are disposed vertically to the bottom plate. Each connector plate has two side units. Each torsion spring has an elastic center and two arms.

Abstract: A downlight apparatus includes a driver, a light source, a light holder, a first switch and a second switch. The driver has a power converter and a controller. The light holder is used for fixing the light source. The holder bottom of the light holder defines a light opening. The light source emits a light from the light opening. The light holder is placed in an installation cavity. The rim structure is connected to the holder bottom. The rim structure has a rim edge concealing the installation cavity. The first switch is provided for users to operate to adjust a setting. The second switch is provided for users to operate to adjust the setting. The first switch is concealed in the installation cavity. The second switch is placed on the rim edge exposed outside the installation cavity. The first switch and the second switch are coupled to the controller.

Abstract: A lighting apparatus includes a fixing unit, a lamp body, a base housing and multiple elastic units. The fixing unit has a central hole. The lamp body includes an inner semi-sphere housing, a rotation shaft and a light source. The base housing includes an external semi-sphere housing and a rotation connector. The rotation shaft is coupled to the rotation connector for the lamp body to rotate with respect to the base housing along a first rotation axis of the rotation shaft. The multiple elastic units are attached to the base housing. The multiple elastic units are elastically attached to the central hole for the base housing to rotate with respect to the fixing unit along a second axis. There is a tilt angle between the first rotation axis and the second rotation axis.

Abstract: A downlight apparatus includes a driver box, a light source, a light housing, multiple leaf springs, multiple shaft connectors and multiple pads. The light housing has a light holder and a rim. The light holder has a holder plate and a holder wall defining a holder cavity. The multiple leaf springs are placed between the driver box and the light holder. Each pad has a pad hole and a pad scraper surrounding the pad hole. The pad scraper has a protruding part engaging an electric insulation layer on a top side of the holder plate. The shaft connector sequentially passes through a spring hole of the leaf spring, the pad hole and the top plate of the light holder. The protruding part of the pad scraper scraps a portion of the electric insulation layer of the holder plate for connecting the holder plate to ground.

Abstract: A downlight apparatus includes a light source, a driver box, a light housing and a heat dissipation plate. The driver box is used for storing a driver. The driver is connected to an external power source to generate a driving current to the light source. The light housing has a light holder and a rim. The light source is stored in the light holder. The rim defines a light opening for a light of the light source to escape. The heat dissipation plate is placed between the light holder and the driver box for carrying away both heat of the driver box and the light source. The heat dissipation plate is a separate metal piece from the driver box and the light housing. The heat dissipation plate has a portion not covered by the light holder and the driver box and exposed to air.

Abstract: A lighting apparatus includes a wire connector, a driver and a light source. The wire connector is used for connecting an external wire and an internal wire. The external wire includes a first external sub-wire and a second external sub-wire. The internal wire includes a first internal sub-wire and a second sub-wire. The wire connector has a scraper for cutting contact parts of the internal wire and the external wire for the first external sub-wire to be electrically connected to the first internal sub-wire and the second external sub-wire to be electrically connected to the second internal sub-wire. The driver is used for connecting to an external power via the internal wire and the external wire and for converting the external power to a driving current. The light source receives the driving current to emit a light.

Abstract: A downlight apparatus includes a driver, a light source, a light holder, a first switch and a second switch. The driver has a power converter and a controller. The light holder is used for fixing the light source. The holder bottom of the light holder defines a light opening. The light source emits a light from the light opening. The light holder is placed in an installation cavity. The rim structure is connected to the holder bottom. The rim structure has a rim edge concealing the installation cavity. The first switch is provided for users to operate to adjust a setting. The second switch is provided for users to operate to adjust the setting. The first switch is concealed in the installation cavity. The second switch is placed on the rim edge exposed outside the installation cavity. The first switch and the second switch are coupled to the controller.

Abstract: A downlight apparatus includes a downlight housing, a drawstring module and a light module. The downlight housing has a surface rim and a downlight holder. The surface rim defines a rim opening. The surface rim conceals an installation cavity. The holder defines a holder space connected to the rim opening. The downlight housing is attached in the installation cavity with a fixing unit. The drawstring module is used for collecting a pullable wire. The pullable wire is electrically connected to a power source. The light module has a light source and a light housing. The light housing is connected to a bottom end of the pullable wire for electrically connecting the power source to the light source. The light module is pulled out from the holder space to an adjustable distance from the rim opening with the pullable wire connecting the light module to the downlight housing.

Abstract: A lighting apparatus includes a dome housing, a first rotation shaft, a light body, a second rotation shaft and a rotation bracket. The dome housing includes a rim part and a container part. The container part defines a semi-sphere space. The rim part conceals an installation cavity for installing the lighting apparatus. The light body includes a light source. The light body is attached to the container part with the first rotation shaft. The light body is rotatable with respect to the container part along the first rotation shaft for a first rotation direction. The rotation shaft is disposed to the container part with a tilt offset from a top center of the container part. The rotation bracket has a fixing bracket and a central part.

Abstract: A lighting apparatus includes a rectifier, a 0-10V dimmer converter, a power circuit and a light source. The rectifier for receives an AC power from an AC input to generate a DC current. The TRIAC wall switch is selectively coupled to the AC input. The TRIAC wall switch is operated by a user with an first manual operation to suppress a portion of the AC power from the AC input corresponding to the first manual operation. The 0-10V dimmer converter is selectively coupled to a 0-10V dimmer. The 0-10V dimmer converts a dimmer voltage of the 0-10V dimmer to a dimmer signal corresponding to a second manual operation of the user. The power circuit is coupled to the 0-10V dimmer converter and the rectifier to convert the DC current to a set of driving current. The light source includes multiple LED modules.

Abstract: A random access method, a base station, and a user equipment (UE) are disclosed. The random access method includes: transmitting a first message for random access for the UE, the first message including a preamble message and a signal message; receiving a second message and a fourth message for random access for the UE at a time and determining random access for the UE is successful upon receiving the second message and the fourth message; and upon reception of a second message configured to request the UE to transmit the signal message, transmitting a third message comprising the signal message, receiving the fourth message in response to the third message, and determining random access for the UE is successful upon receiving the fourth message.

Abstract: A lighting apparatus includes a fixing unit, a lamp body, a base housing and multiple elastic units. The fixing unit has a central hole. The lamp body includes an inner semi-sphere housing, a rotation shaft and a light source. The base housing includes an external semi-sphere housing and a rotation connector. The rotation shaft is coupled to the rotation connector for the lamp body to rotate with respect to the base housing along a first rotation axis of the rotation shaft. The multiple elastic units are attached to the base housing. The multiple elastic units are elastically attached to the central hole for the base housing to rotate with respect to the fixing unit along a second axis. There is a tilt angle between the first rotation axis and the second rotation axis.

Abstract: A downlight apparatus includes a light source, a light housing and a stop unit. The driver box is used for storing a driver. The driver is connected to an external power source to generate a driving current to the light source. The driver box has a wall with an installation escape. The light housing has a light holder and a rim. The light source is stored in the light holder. The rim defines a light opening for a light of the light source to escape. The stop unit is fixed to the installation escape. The stop unit has a switch holder and a wire holder. A manual switch is placed in the switch holder and an enlarged wire head of an power wire is placed in the wire holder. An operation part of the manual switch is exposed outside the driver box. The manual switch is connected to the driver for adjusting a setting of the driver.

Abstract: An illumination apparatus includes a surface rim, a rotation ring, a light holder and a retractable tube. The surface rim has a rim cover, and a rim wall protruding from the rim cover and defining a light opening. The rotation ring is held by the rim wall to be rotatable along an axis of a center of the light opening. The light holder is used for support a light source. The light holder is fixed to the rotation ring by two rotation axles so that the light holder is capable of orienting a light source in a plurality of angles with respect to a plane of the rotation ring. The retractable tube has an optical cover, such that a distance between the optical cover and the light source is adjustable.

Abstract: The downlight apparatus includes a surface rim, a rotation bracket, a bowl housing and a light source. The surface rim has an rim edge and a lateral wall. The rotation bracket includes a bracket body and two arms. Each arm has an arm bottom and a arm top. The rotation bracket is attached to the lateral wall. The bowl housing has a bowl edge. The bowl edge defines a light opening. The arm tops of the two arms are attached to the bowl edge. The bowl housing is rotatable with a tilt angle with respect to the arm tops. The light source is mounted inside the bowl housing for emitting a light from the light opening.

Abstract: A downlight apparatus includes a base housing, a light module and a rotation shaft. The base housing has an inner hemisphere surface. The light module has an exterior hemisphere surface. The light module has a light source emitting a light. The rotation shaft has a first end fixed to the light module. The base housing has a shaft hole for the rotation shaft to pass through and rotate in the shaft hole. The rotation shaft has a second end attached to the base housing. A rotation axis of the rotation shaft is aligned with a radial direction of the exterior hemisphere surface for changing a light direction of the light by rotating the light module along the rotation shaft.

Abstract: A downlight apparatus includes a fixing bar, a driver box, a light container and a light source. The fixing bar has two elastic units and a central part. The two elastic units are located at two opposite sides of the central part. The two elastic units are deformed so as to pass through a central hole of a fixing plate and then are released to attach to the fixing plate. The fixing plate is fixed to a platform. The driver box includes a driver for converting an external power to a driving current. The light container has a top cover and a lateral wall. The fixing bar is fixed on the top cover protruding toward the central hole of the fixing plate. A bottom side of the driver box is placed on the central part.

Abstract: A lighting apparatus includes a dome housing, a first rotation shaft, a light body, a second rotation shaft and a rotation bracket. The dome housing includes a rim part and a container part. The container part defines a semi-sphere space. The rim part conceals an installation cavity for installing the lighting apparatus. The light body includes a light source. The light body is attached to the container part with the first rotation shaft. The light body is rotatable with respect to the container part along the first rotation shaft for a first rotation direction. The rotation shaft is disposed to the container part with a tilt offset from a top center of the container part. The rotation bracket has a fixing bracket and a central part.

Abstract: A downlight apparatus includes a light source, a light housing and a stop unit. The driver box is used for storing a driver. The driver is connected to an external power source to generate a driving current to the light source. The driver box has a wall with an installation escape. The light housing has a light holder and a rim. The light source is stored in the light holder. The rim defines a light opening for a light of the light source to escape. The stop unit is fixed to the installation escape. The stop unit has a switch holder and a wire holder. A manual switch is placed in the switch holder and an enlarged wire head of an power wire is placed in the wire holder. An operation part of the manual switch is exposed outside the driver box. The manual switch is connected to the driver for adjusting a setting of the driver.

Abstract: A lighting apparatus includes a rectifier, a 0-10 V dimmer converter, a power circuit and a light source. The rectifier for receives an AC power from an AC input to generate a DC current. The TRIAC wall switch is selectively coupled to the AC input. The TRIAC wall switch is operated by a user with an first manual operation to suppress a portion of the AC power from the AC input corresponding to the first manual operation. The 0-10 V dimmer converter is selectively coupled to a 0-10 V dimmer. The 0-10 V dimmer converts a dimmer voltage of the 0-10 V dimmer to a dimmer signal corresponding to a second manual operation of the user. The power circuit is coupled to the 0-10 V dimmer converter and the rectifier to convert the DC current to a set of driving current. The light source includes multiple LED modules.