A lighting device for use with one or more other networked devices is disclosed. In embodiments, the lighting device may comprise an outer globe, a diffuser, an outer cowling, a power input connector, a power control printed circuit board, a communication and control printed circuit board, an indicator printed circuit board, one or more microprocessors, a real-time clock, a supercapacitor, and an LED lighting printed circuit board. In embodiments, the real-time clock may be powered by the supercapacitor to track time without power from an input power source for the lighting device, enabling the lighting device to implement time-dependent settings, such as pre-programmed color temperatures and/or light intensities. The lighting device may communicate with one or more other networked devices, such as second lighting devices, mobile phones, servers, remote controls, and/or home or office automation equipment. The lighting device may be powered through a light socket.

A lighting device includes a housing and a power connector attached to the housing. The lighting device also includes a wireless lighting control device positioned inside the housing. The wireless lighting control device includes a wireless transceiver to wirelessly receive lighting control instructions and a control interface circuitry compatible with a lighting fixture driver. The wireless lighting control device further includes a controller communicably coupled to the wireless transceiver and to the control interface circuitry. The controller is configured to control the control interface circuitry based on the lighting control instructions received by the wireless transceiver.

A highly efficient LED lighting fixture includes a plurality of LEDs and a power converter and control circuit. The power converter circuit is a non-isolated power converter circuit. A heat sink is thermally coupled to a circuit board that carries the power converter, and an AC powered fan directs air over the heat sink to remove heat from the circuit board. The LED lighting fixture has an efficacy of at least 70 lm/w.

The present invention provides a dimmable lighting apparatus, comprising a light emitting circuit and a driving circuit coupled with the light emitting circuit. The driving circuit comprises a rectifier module, a filtering module coupled between the light emitting circuit and the rectifier module, a constant current module coupled between the filtering module and the light emitting circuit, and a dimming module. In particular, the dimming module is configured to receive a driving signal supplied to the light emitting circuit from the constant current module, and feed the driving signal back to the constant current module to adjust an output power of the constant current module.

A driver arrangement is provided for a LED lighting device with a LED light source and at least one additional auxiliary module. The driver arrangement comprises separate main and auxiliary drivers. The delivery of power from the auxiliary driver is controlled to either an auxiliary power output or to both a main power output and the auxiliary power output. Each driver can be optimized for the load it is required to drive. The device may overall be more efficient in a low power auxiliary mode, by using a driver suited for such low power operation. In particular when the power demand of the LED light source is low, the auxiliary driver may be used.

A driver arrangement is provided for a LED lighting device with a LED light source and at least one additional auxiliary module. The driver arrangement comprises separate main and auxiliary drivers. The delivery of power from the auxiliary driver is controlled to either an auxiliary power output or to both a main power output and the auxiliary power output. Each driver can be optimized for the load it is required to drive. The device may overall be more efficient in a low power auxiliary mode, by using a driver suited for such low power operation. In particular when the power demand of the LED light source is low, the auxiliary driver may be used.

An LED tube light with a color adjustment switch related to the technical field of home appliances includes an LED tube light body. The LED tube light body is provided with a tube light body and terminals located at two ends of the tube light body and used for connecting with a mounting seat. The tube light body includes a light tube, an LED light strip with at least two different color temperatures, and a driving power source electrically connected with the LED light strip. The LED tube light body further includes at least one color adjustment switch fixed on the respective terminal. The color adjustment switch is configured to control the on and off of different color temperatures of the LED light strip.

A variable resistance power adjustment device and lamp. The variable resistance power adjustment device includes a mounting base, keycap and resistance adjustment module. The mounting base connecting to the lamp body, working with the lamp body to form a mounting cavity in an enclosure way and provided with a through-hole connecting to the mounting cavity; a keycap connecting to the mounting base flexibly and stretching into the through-hole partially; the resistance adjustment module provided in the mounting cavity, the adjustment part of the resistance adjustment module connecting to the keycap, the resistance adjustment module connects to the driving power supply of the lamp body; the keycap moves to drive the adjustment part of the resistance adjustment module to move, so that the corresponding resistance can be switched into the driving power supply from the resistance adjustment module and the resistance adjustment module adjusts the power of the whole lamp body.

A variable resistance power adjustment device and lamp. The variable resistance power adjustment device includes a mounting base, keycap and resistance adjustment module. The mounting base connecting to the lamp body, working with the lamp body to form a mounting cavity in an enclosure way and provided with a through-hole connecting to the mounting cavity; a keycap connecting to the mounting base flexibly and stretching into the through-hole partially; the resistance adjustment module provided in the mounting cavity, the adjustment part of the resistance adjustment module connecting to the keycap, the resistance adjustment module connects to the driving power supply of the lamp body; the keycap moves to drive the adjustment part of the resistance adjustment module to move, so that the corresponding resistance can be switched into the driving power supply from the resistance adjustment module and the resistance adjustment module adjusts the power of the whole lamp body.

A light tube apparatus includes a tubular housing, a LED module, an EMI circuit, a rectifier circuit, a filter circuit, a conversion circuit, a safety circuit and a PWM modulation circuit. The safety circuit is connected to a dimming signal from a dimmer for preventing an incorrect connection when the dimmer is connected in wrong direction causing loop breakage. The PWM modulation circuit is connected to the conversion circuit and the safety circuit for performing a pulse width modulation for the dimming signal supplied to the conversion circuit for adjusting a luminance level of the LED module.