An elongate tubular lighting assembly having a body with a length between spaced first and second ends. The tubular lighting assembly has a source of illumination and first and second connectors respectively at the first and second body ends. The first connector has cooperating first and second parts having first and second surfaces. The first and second connector parts are configured so that the first and second surfaces are placed in confronting relationship to prevent separation of the first and second connector parts with the body in an operative state as an incident of the first connector part moving relative to the second connector part from a position fully separated from the second connector part in a substantially straight path that is transverse to the length of the body into an engaged position.

A light source driving device performs a switching control on a third switch of a second control unit by using a control signal of a fourth control unit (overvoltage protection circuit), so as to allow the third switch to be turned on by the control signal of the fourth control unit only in a partial section in which an overvoltage occurs, and then turns off the third switch, thereby quickly releasing the blocking of light emission from the light source so as to be capable of returning to a light emitting state.

A lighting circuit turns on multiple semiconductor light sources. Multiple current sources are each coupled in series with a corresponding one from among the semiconductor light sources. A switching converter supplies a driving voltage V.sub.OUT across each of multiple series connection circuits formed of the multiple semiconductor light sources and the multiple current sources. A converter controller controls a switching transistor of the switching converter based on a relation between a voltage across one from among the multiple current sources and a reference voltage having a positive correlation with the temperature T.sub.j.

A lighting circuit turns on multiple semiconductor light sources. Multiple current sources are each coupled in series with a corresponding one from among the semiconductor light sources. A switching converter supplies a driving voltage V.sub.OUT across each of multiple series connection circuits formed of the multiple semiconductor light sources and the multiple current sources. A converter controller controls a switching transistor of the switching converter based on a relation between a voltage across one from among the multiple current sources and a reference voltage having a positive correlation with the temperature T.sub.j.

Disclosed is a plurality of LED packages that are connected in a parallel array. A plurality of parallel arrays can also be connected in series to form a series connected parallel array. The LED packages include backup LEDs to provide reliability and continued operation of the LED packages. The LED packages present a standardized impedance in which the resistive values of a series resistor and a parallel resistor are selected to moderate the flow of current when the LEDs become either shorted or open circuited.

Disclosed is a plurality of LED packages that are connected in a parallel array. A plurality of parallel arrays can also be connected in series to form a series connected parallel array. The LED packages include backup LEDs to provide reliability and continued operation of the LED packages. The LED packages present a standardized impedance in which the resistive values of a series resistor and a parallel resistor are selected to moderate the flow of current when the LEDs become either shorted or open circuited.

An intelligent lighting device control system includes a plurality of lighting devices and an intelligent lighting device controller. The intelligent lighting device controller includes a detecting module, a main power source module and an intelligent control module. The detecting module has a detecting circuit. The main power source module includes a plurality of first electrode connectors and a common electrode connector. The first electrode connectors are connected to the detecting circuit and connected to the first electrodes of the lighting devices via the detecting circuit. The common second electrode connector is connected to the second electrodes of the lighting devices and outputs an electricity signal to drive the lighting devices, such that the detecting circuit generates a plurality of detecting signals. The intelligent control module generates a feedback signal according to the detecting signals and the main power source module adjusts the electricity signal according to the feedback signal.

An intelligent lighting device control system includes a plurality of lighting devices and an intelligent lighting device controller. The intelligent lighting device controller includes a detecting module, a main power source module and an intelligent control module. The detecting module has a detecting circuit. The main power source module includes a plurality of first electrode connectors and a common electrode connector. The first electrode connectors are connected to the detecting circuit and connected to the first electrodes of the lighting devices via the detecting circuit. The common second electrode connector is connected to the second electrodes of the lighting devices and outputs an electricity signal to drive the lighting devices, such that the detecting circuit generates a plurality of detecting signals. The intelligent control module generates a feedback signal according to the detecting signals and the main power source module adjusts the electricity signal according to the feedback signal.

An intelligent lighting device control system includes a plurality of lighting devices and an intelligent lighting device controller. The intelligent lighting device controller includes a detecting module, a main power source module and an intelligent control module. The detecting module has a detecting circuit. The main power source module includes a plurality of first electrode connectors and a common electrode connector. The first electrode connectors are connected to the detecting circuit and connected to the first electrodes of the lighting devices via the detecting circuit. The common second electrode connector is connected to the second electrodes of the lighting devices and outputs an electricity signal to drive the lighting devices, such that the detecting circuit generates a plurality of detecting signals. The intelligent control module generates a feedback signal according to the detecting signals and the main power source module adjusts the electricity signal according to the feedback signal.

An intelligent lighting device control system includes a plurality of lighting devices and an intelligent lighting device controller. The intelligent lighting device controller includes a detecting module, a main power source module and an intelligent control module. The detecting module has a detecting circuit. The main power source module includes a plurality of first electrode connectors and a common electrode connector. The first electrode connectors are connected to the detecting circuit and connected to the first electrodes of the lighting devices via the detecting circuit. The common second electrode connector is connected to the second electrodes of the lighting devices and outputs an electricity signal to drive the lighting devices, such that the detecting circuit generates a plurality of detecting signals. The intelligent control module generates a feedback signal according to the detecting signals and the main power source module adjusts the electricity signal according to the feedback signal.