A lighting system includes an LED downlight mountable to a ceiling, a driver, and an insulation displacement connector (IDC). Light from the downlight can be faced downward to project light or upward to reflect light off of the ceiling. The driver has an input with a first voltage and an output with a second voltage, the second voltage being lower than the first and being provided through a wire system extending from the LED driver. The IDC connects the downlight to the wire system. The lighting system can be changed from a first to a second configuration by at least one of adding an additional downlight using a corresponding IDC or removing an existing downlight using a corresponding IDC. The second configuration does not significantly affect a desired output range of light from any downlight or any LED circuit of any downlight that remains or preexists from the first configuration.

An LED tube lamp comprises: a glass lamp tube; an LED light strip disposed inside the glass lamp tube and comprised a mounting region and a connecting region; an LED module comprised a plurality of LED light sources mounted on the mounting region; two first connecting pads arranged on the connecting region, each of the first connecting pads comprising a through hole therein; a fixing structure disposed inside the glass lamp tube and extending along the longitudinal direction of the glass lamp tube, the fixing structure comprising a first end fixedly connected to the inner circumferential surface of the glass lamp tube and a second end fixedly connected to the LED light strip; a circuit board separate from the light strip and soldered to the LED light strip via the two first connecting pads, and a solder be disposed on each of the first connecting pads and in the through hole of each first connecting pad and a power supply module. The power supply module comprises a first rectifying circuit; a filtering circuit coupled to the first rectifying circuit and a driving circuit coupled to the filtering circuit.

An LED tube lamp comprises: a glass lamp tube; an LED light strip disposed inside the glass lamp tube and comprised a mounting region and a connecting region; an LED module comprised a plurality of LED light sources mounted on the mounting region; two first connecting pads arranged on the connecting region, each of the first connecting pads comprising a through hole therein; a fixing structure disposed inside the glass lamp tube and extending along the longitudinal direction of the glass lamp tube, the fixing structure comprising a first end fixedly connected to the inner circumferential surface of the glass lamp tube and a second end fixedly connected to the LED light strip; a circuit board separate from the light strip and soldered to the LED light strip via the two first connecting pads, and a solder be disposed on each of the first connecting pads and in the through hole of each first connecting pad and a power supply module. The power supply module comprises a first rectifying circuit; a filtering circuit coupled to the first rectifying circuit and a driving circuit coupled to the filtering circuit.

A lamp for arranging in a faade construction having a pot-like housing or a carrier element, in particular a circuit board, having LEDs arranged therein or thereon, an optical unit associated with the LEDs, and a transparent cover, which together with the housing or the carrier element encloses the LEDs, wherein the optical unit is an integral component of the cover and the cover is adhesively bonded to the housing or to the carrier element.

A submersible light fixture including an outer casing with a window and a housing, the outer casing being sealed for operation underwater, an LED array within the outer casing behind the window including a plurality of light-emitting diodes, and a driver within the outer casing including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit charges the at least one capacitor to a voltage of at least two times a forward voltage of the LED array. The discharging circuit delivers power from the at least one capacitor to the LED array in discrete pulses at a voltage of at least two times the forward voltage of the LED array.

A submersible light fixture including an outer casing with a window and a housing, the outer casing being sealed for operation underwater, an LED array within the outer casing behind the window including a plurality of light-emitting diodes, and a driver within the outer casing including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit charges the at least one capacitor to a voltage of at least two times a forward voltage of the LED array. The discharging circuit delivers power from the at least one capacitor to the LED array in discrete pulses at a voltage of at least two times the forward voltage of the LED array.

In combination with a building room having a ceiling defining a recessed lighting aperture and a cavity with a lighting receptacle disposed therein, wherein an improvement is disclosed that includes an LED lamp with a housing having a first end with a connector removably coupled to the light receptacle. The lamp has a second end defining a front face with an output vent disposed thereon. The light also has a heating element housed within the housing and electrically coupled to the lighting receptacle, a fan housed within the housing and electrically coupled to the lighting receptacle that is operably configured to emit air in an air-emitting direction substantially parallel to the longitudinal direction and through the heating element and the output vent, and has at least one LED bulb disposed on the rear face operably configured to emit light to an ambient environment.

In combination with a building room having a ceiling defining a recessed lighting aperture and a cavity with a lighting receptacle disposed therein, wherein an improvement is disclosed that includes an LED lamp with a housing having a first end with a connector removably coupled to the light receptacle. The lamp has a second end defining a front face with an output vent disposed thereon. The light also has a heating element housed within the housing and electrically coupled to the lighting receptacle, a fan housed within the housing and electrically coupled to the lighting receptacle that is operably configured to emit air in an air-emitting direction substantially parallel to the longitudinal direction and through the heating element and the output vent, and has at least one LED bulb disposed on the rear face operably configured to emit light to an ambient environment.

A linear light-emitting diode (LED) lamp comprising a housing, two lamp bases at two ends of the housing, a full-wave rectifier, an LED driving circuit, one or more LED arrays, at least two proximity sensors, and at least two pairs of electrical contacts controlled by the at least two proximity sensors, is used to replace a fluorescent tube or a conventional LED tube lamp. The at least two proximity sensors and the at least two pairs of electrical contacts configured to respectively perform proximity sensing between the two lamp bases and two sockets in an existing lamp fixture are operated by using a low DC voltage. When both two lamp bases are inserted in the two sockets, the at least two pairs of electrical contacts are driven to make an electrical coupling between the full-wave rectifier and the LED driving circuit.

A linear light-emitting diode (LED) lamp comprising a housing, two lamp bases at two ends of the housing, a full-wave rectifier, an LED driving circuit, one or more LED arrays, at least two proximity sensors, and at least two pairs of electrical contacts controlled by the at least two proximity sensors, is used to replace a fluorescent tube or a conventional LED tube lamp. The at least two proximity sensors and the at least two pairs of electrical contacts configured to respectively perform proximity sensing between the two lamp bases and two sockets in an existing lamp fixture are operated by using a low DC voltage. When both two lamp bases are inserted in the two sockets, the at least two pairs of electrical contacts are driven to make an electrical coupling between the full-wave rectifier and the LED driving circuit.