An LED tube lamp is provided. The LED tube lamp includes a lamp tube having at least two external connection terminals, for receiving an external driving signal; a rectifying circuit for rectifying the external driving signal to produce a rectified signal; an LED lighting module comprising an LED module, for emitting light; and a ballast interface circuit coupled between the external connection terminals and the LED lighting module, and comprising a detection circuit configured to determine whether the external driving signal is a high frequency or high voltage signal according to the frequency or voltage level of the rectified signal, wherein the ballast interface circuit is configured such that when the external driving signal is determined to be a high frequency or high voltage signal, the ballast interface circuit causes current conduction in the LED module for emitting light.

Disclosed are a communication module and a lighting apparatus having the same. The communication module includes a housing provided therein with a space, and a module substrate provided in the space of the housing and provided therein with a wireless communication chip, a reset device to reset the wireless communication chip, and a display part to display the state of the wireless communication chip through the opening. The communication module is detachably coupled with an object to transmit a control signal, which is received through a wireless network, to the object. The communication module is stored when the lighting part of the lighting apparatus is replaced with new one, so that the cost is reduced. The light is discharged through the opening to display the erroneous operation of the inner part, such that the communication module is forcibly reset.

A wireless device control system includes a remote server connected to a wide area network and having control software for configuring, monitoring, and controlling devices at a site. The wireless device control system also includes a wireless gateway located at the site and configured to communicate with the remote server via cellular communication. Control devices are in wireless communication with the wireless gateway via a mesh network, with each of the control devices being wired to control one of the site devices. A computer device is connected to the wide area network and has an interface enabling a user to access the server control software. Control instructions entered on the remote server through the interface are communicated from the remote server to the wireless gateway and then from the wireless gateway to the control devices.

An electronic device adapted for adjusting a light effect of a CCFL is provided. The electronic device is electronically connected to the CCFL. The electronic device comprises a PWM controller configured to receive at least a digital signal and to output a specific-frequency reference signal according to the digital signal, a driver electronically connected to the PWM controller and configured to output a first voltage signal according to the specific-frequency reference signal, and a transformer electronically connected to the driver and the CCFL. The transformer amplifies the first voltage signal to generate a second voltage signal and sends the second voltage signal to the CCFL. A light effect is generated by the CCFL according to the second voltage signal.

An LED tube lamp is provided. The LED tube lamp includes a lamp tube having a first pin and a second pin at a first end of the lamp tube and a third pin and a fourth pin at a second end of the lamp tube, for receiving an external driving signal; a light strip disposed in the lamp tube, comprising an LED module for emitting light; a rectifying circuit for rectifying the external driving signal to produce a rectified signal; a filtering circuit coupled to the rectifying circuit, for filtering the rectified signal in order to drive the LED module; a current-limiting element for receiving the external driving signal input at one or more of the pins, the current-limiting element coupled to one or more of the pins, and coupled to the rectifying circuit; and a ballast interface circuit coupled to or in the rectifying circuit, and coupled to the current-limiting element, for the LED tube lamp to be compatible with a ballast providing the external driving signal, wherein the ballast interface circuit has a first terminal and a second terminal and is configured to determine whether the external driving signal is output from a ballast, according to a state of a property of the external driving signal, or according to a state of a property of a detection signal transmitted through the first terminal and the second terminal upon the external driving signal being input to the LED tube lamp.

An example of a lighting system includes intelligent lighting devices, each of which includes a light source, a communication interface and a processor coupled to control the light source. In such a system, at least one of the lighting devices includes a user input sensor to detect user activity related to user inputs without requiring physical contact of the user; and at least one of the lighting devices includes an output component to provide information output to the user. One or more of the processors in the intelligent lighting devices are further configured to process user inputs detected by the user input sensor, control lighting and control output to a user via the output component so as to implement an interactive user interface for the system, for example, to facilitate user control of lighting operations of the system and/or to act as a user interface portal for other services.

A magnetic induction circuit, a magnetic-controlled switch circuit, a magnetic-controlled device and a magnetic-controlled lamp. The magnetic induction circuit includes a magnetic induction module, a voltage comparison module and a voltage output module. The magnetic induction module is configured to sense an external magnetic field to generate a first voltage signal. The voltage comparison module is configured to receive the first voltage signal, and output a second voltage signal. The voltage output module is configured to process the second voltage signal and output a third voltage signal.

An LED tube lamp is provided. The LED tube lamp includes a lamp tube including a first pin at a first end of the lamp tube and a second pin at a second end of the lamp tube, for receiving an external driving signal; a light strip disposed in the lamp tube, comprising an LED module for emitting light; a driving circuit configured to drive the LED module; a rectifying circuit for rectifying the external driving signal to produce a rectified signal; a filtering circuit coupled to the rectifying circuit, for filtering the rectified signal in order to drive the LED module; a first capacitor coupled to the first pin at the first end of the lamp tube; and a second capacitor coupled to the second pin at the second end of the lamp tube.

An LED tube lamp is provided herein, which implements the safety function for protecting the user from electric shock since it conducts only when both ends thereof have been correctly installed into a lamp socket. The LED tube lamp includes a lamp tube; two end caps, each having an external connection terminal, and each coupled to a respective end of the lamp tube, wherein the external connection terminals are configured to receive an external driving signal; an LED module, configured to emit light based on the external driving signal; and an installation detection module, coupled on a power loop of the LED tube lamp and configured to detect a sampling signal on the power loop and compare the sampling signal with a predefined signal, wherein when a signal level of the sampling signal is smaller than the predefined signal, the installation detection module limits a current on the power loop less than 5 MIU.

An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (LEDs). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.