An LED lamp bulb, comprising: an LED lamp substrate (5) having at least one LED light source (51) mounted thereon; and an electrical isolation assembly (6a) disposed on the LED lamp substrate (5), wherein, the electrical isolation assembly (6a) electrically isolates the LED lamp substrate's charged part from outside of the LED lamp substrate (5). The LED lamp bulb can protect user from contacting the charged part inside the lamp housing (7) when the LED lamp bulb is broken and thereby avoid electric shock accidents. In addition, the directions of the light emitted by the LED light sources (51) can be changed to achieve different kinds of lighting effects.

An LED lamp bulb, comprising: an LED lamp substrate (5) having at least one LED light source (51) mounted thereon; and an electrical isolation assembly (6a) disposed on the LED lamp substrate (5), wherein, the electrical isolation assembly (6a) electrically isolates the LED lamp substrate's charged part from outside of the LED lamp substrate (5). The LED lamp bulb can protect user from contacting the charged part inside the lamp housing (7) when the LED lamp bulb is broken and thereby avoid electric shock accidents. In addition, the directions of the light emitted by the LED light sources (51) can be changed to achieve different kinds of lighting effects.

The invention provides a troffer-based lighting arrangement (100) comprising end plates (1100) and a lighting unit (1200) configured between said end plates (1100), wherein the lighting unit (1200) comprises a grounding point (1207) and head ends, wherein the end plates (1100) are associated with the respective head ends via connectors (1300), wherein the lighting unit (1200) and end plates (1100) are in physical contact with each other for providing grounding continuity between the lighting unit (1200) and the end plates (1100), and which connectors (1300) comprise head end locking tabs and end plate locking slots (1103), wherein the locking tabs reside in the respective locking slots (1103).

The invention provides a troffer-based lighting arrangement (100) comprising end plates (1100) and a lighting unit (1200) configured between said end plates (1100), wherein the lighting unit (1200) comprises a grounding point (1207) and head ends, wherein the end plates (1100) are associated with the respective head ends via connectors (1300), wherein the lighting unit (1200) and end plates (1100) are in physical contact with each other for providing grounding continuity between the lighting unit (1200) and the end plates (1100), and which connectors (1300) comprise head end locking tabs and end plate locking slots (1103), wherein the locking tabs reside in the respective locking slots (1103).

A power supply module is configured to provide, based on an external driving signal, a driving current for driving an LED tube lamp. The power supply module includes a detection path circuit, configured to establish a detection path which is capable of affecting an electrical signal on a power line of the power supply module when the detection path is turned on, and a driving circuit, electrically connected to the detection path circuit, and configured to produce the driving current based on the external driving signal. When the driving circuit is activated by receiving the external driving signal, the driving circuit enters into a first mode to detect whether a foreign external impedance is electrically connected to the LED tube lamp. When the foreign external impedance is detected, the driving circuit remains in the first mode, and when the foreign external impedance is not detected, the driving circuit enters into a second mode to produce the driving current. The driving circuit is further configured to obtain a dimming message from the electrical signal and adjust the magnitude of the driving current according to the dimming message when in the second mode.

A lampstand with self-extinguishing function includes a support bracket, a flame holder, and an extinguishing device. The flame holder is disposed on the support bracket, and the extinguishing device is installed on the support bracket and located above the flame holder to extinguish a flame on the flame holder. Thus, the lampstand can blow the burning flame out thereby avoiding long-term burning, reducing fire risk and improving safety in use.

A lampstand with self-extinguishing function includes a support bracket, a flame holder, and an extinguishing device. The flame holder is disposed on the support bracket, and the extinguishing device is installed on the support bracket and located above the flame holder to extinguish a flame on the flame holder. Thus, the lampstand can blow the burning flame out thereby avoiding long-term burning, reducing fire risk and improving safety in use.

Disclosed is a laser-based device for use primarily for laser light effects. The laser device comprises multiple red, green, and blue lasers. Each laser has a lens to collimate and focus each individual beam. The lasers are aligned such that each laser shares a common output axis. The intensity of each laser is adjustable thereby allowing the overall output color of the device to change. The overall output has over 16 million colors. Each laser-based device has a gimbal-like system to allow the devices change their orientation. A remote control system allows for the control and synchronization of multiple devices. Multiple devices may connect to the remote control system using cables, wireless transceivers, or both. Multiple devices may be located in close proximity to create a more powerful overall output beam. The remote control system allows for viewer interaction through an application installed onto a personal communication device.

Disclosed is a laser-based device for use primarily for laser light effects. The laser device comprises multiple red, green, and blue lasers. Each laser has a lens to collimate and focus each individual beam. The lasers are aligned such that each laser shares a common output axis. The intensity of each laser is adjustable thereby allowing the overall output color of the device to change. The overall output has over 16 million colors. Each laser-based device has a gimbal-like system to allow the devices change their orientation. A remote control system allows for the control and synchronization of multiple devices. Multiple devices may connect to the remote control system using cables, wireless transceivers, or both. Multiple devices may be located in close proximity to create a more powerful overall output beam. The remote control system allows for viewer interaction through an application installed onto a personal communication device.

An LED lamp includes an LED module, a top housing, and a light transmitting cover attached to the top housing and arranged at a forward side of the top housing. The LED lamp also includes a base housing coupled to the top housing. The LED lamp includes a driving module coupled to the top housing via a central hole of the base housing. The driving module includes a driving box and a communication board, the communication board has a first part located inside the driving box and a second part protruding from the driving box and extending through the top housing and the LED module toward the light transmitting cover.