According to some embodiments, a system and method provide a lighting fixture including at least one socket, wherein each socket is operative to receive an auxiliary device; and a fixture authentication module operative to authenticate each received auxiliary device. Numerous other aspects are provided.

A power supply module is applicable to an LED tube lamp adapted to install on a lamp socket, and having electric shock protection function, the LED tube lamp including a lamp tube; two end caps, each having a first external connection terminal, and each coupled to a respective end of the lamp tube, the first connection terminals of the two end caps for receiving an external signal; and an LED module configured for emitting light. The power supply module includes: a rectifying circuit, coupled to the first external connection terminals of the end caps and the LED module, for rectifying a received signal to produce a rectified signal; a filtering circuit, coupled to the rectifying circuit and the LED module, for filtering the rectified signal to produce a filtered signal; a switch circuit configured to be switched according to a control signal; an electric shock protection controller coupled to the switch circuit, for detecting whether an electric shock risk has occurred, and configured to turn the switch circuit on or off according to the detection result; and impedance devices, which impedance devices and at least one electric component of the electric shock protection controller form a detection path. The electric shock protection controller is configured to cause a current to be conducted in the detection path for generating the detection result.

An LED tube lamp is disclosed. An installation detection circuit is configured in the LED tube lamp configured to receive an external driving signal. The installation detection circuit includes: a pulse generating circuit configured to output one or more pulse signals; wherein the installation detection circuit is configured to detect during one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal; and a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit. The installation detection circuit is further configured to: when it is detected during one or more pulse signals that the LED tube lamp is not properly installed on the lamp socket, control the switch circuit to remain in an off state to cause a power loop of the LED tube lamp to be open; and when it is detected during one or more pulse signals that the LED tube lamp is properly installed on the lamp socket, control the switch circuit to remain in a conducting state to cause the power loop of the LED tube lamp to maintain a conducting state.

An apparatus for creating functional lighting groups is provided. The apparatus includes a commissioning device and a gateway. The commissioning device is configured to identify, locate, and record a plurality of wireless devices during commissioning of the plurality of wireless devices, the plurality of wireless devices having a common circuit and legacy line voltage switch, and is configured to direct the plurality of wireless devices over a wireless network to enter a grouping mode and to send messages indicating that they have been power cycled by the legacy line voltage switch. The gateway is coupled to the wireless network, and is configured to receive the messages and to create a functional lighting group including the plurality of wireless devices.

An apparatus for creating functional lighting groups is provided. The apparatus includes a plurality of wireless devices and a gateway. The plurality of wireless devices has a common circuit and legacy line voltage switch, and is configured to enter a grouping mode responsive to commissioning commands sent over a wireless network, and is configured to send messages over the wireless network indicating that they have been power cycled by a legacy line voltage switch. The gateway is coupled to the plurality of wireless devices over the wireless network, and is configured to receive the messages, and is configured to create a functional lighting group comprising the plurality of wireless devices.

A lighting apparatus using light emitting diodes is disclosed. A plurality of light-emitting groups are connected to each other in series at an output terminal of a rectification unit. Current diodes as current sources are branched from a node between the light-emitting groups. Current values set in the current diodes are set according to the amount of current flowing into the light-emitting groups. Therethrough, the amount of current flowing in each light-emitting group can be determined.

A lamp control system may include a plurality of parallel lamp modules. Each parallel lamp module may include control electronics configured to selectively couple a DC power source with a load to selectively drive the load. The lamp control system may include at least one control circuit configured to send a same control command to the control electronics of each of the parallel lamp modules at the same time so that each of the control electronics is configured to selectively drive the load identically. The lamp control system may include at least one relay configured to selectively couple one of the parallel lamp modules with the load and decouple each of the remaining parallel lamp modules from the load so that the control electronics of the one parallel lamp module selectively drive the load according to the control command.

An LED tube lamp is disclosed. The LED tube lamp includes a filtering circuit, an LED lighting module, and an anti-flickering circuit. The filtering circuit is configured to filter a rectified external driving signal. The LED lighting module has an LED module, and is configured to generate a driving signal, and the LED module is configured to receive the driving signal to emit light. The LED module is formed on an LED light strip, which includes at least a first pad connected to the filtering circuit, and at least an opening formed on the first pad. The anti-flickering circuit is configured to reduce flickering effect in light emission of the LED module. The LED tube lamp further includes a conduction-delaying circuit; a first rectifying circuit and at least a fuse; or first and second filament-simulating circuits respectively coupled to two opposite ends of the lamp tube.

A lighting device includes light emitting element groups (HSB) including a light emitting element group (HS2) that emits light when being applied with a voltage (VH2), and a light emitting element group (HS12) that emits light when being applied with a voltage (VH12) higher than VH2, the light emitting element groups (HSB) emitting light when being applied with a voltage equal to or higher than a voltage (VHa); an IC1 including a light emission control unit (HC1) arranged to cause light emission of a light emitting element group (HS) if a voltage (Vk) is higher than VHa, and to stop the light emission if Vk is lower than the same; and an IC2 including a light emission control unit (HC2) arranged to cause light emission of a group (HSa) if Vk is higher than VHa, and to turn off the group (HSa) if Vk is lower than the same.

An apparatus and computer readable storage medium are disclosed for supplying power to a load such as a plurality of light emitting diodes. A representative apparatus comprises a primary module, a first secondary module couplable to a first load, and a second secondary module couplable to a second load. The primary module comprises a transformer having a transformer primary. The first secondary module comprises a first transformer secondary magnetically coupled to the transformer primary, and the second secondary module comprises a second transformer secondary magnetically coupled to the transformer primary, with the second secondary module couplable through the first or second load to the first secondary module.