An LED-based light includes one or more LEDs, a sensor arranged to detect a brightness level in an area resulting from the combination of light emitted by the LEDs with light from at least one ambient light source other than the LEDs, and operable to output a signal corresponding to the detected brightness level, a controller operable to regulate an amount of power provided to the LEDs in response to the signal, a light transmitting housing for the LEDs, the sensor and the controller and a connector shaped for connection with a light socket disposed at an end of the housing.

A holder is provided to support a light emitting diode (LED) array in position. In an embodiment the holder includes a terminal that is insert-molded into a housing. In an alternative embodiment, a terminal can be stitch into a housing and secured with a shield. In the latter embodiment the holder can be configured to provide a desired amount of electrical isolation between the terminal and potential shorting surfaces so as to meet creepage and clearance requirements, thus allowing the use of additional power supplies.

The present invention relates to an adaptor (1) for arrangement in a fluorescent lamp luminaire, comprising a connector member (10) shaped to fit into an electrical connector of a fluorescent lamp luminaire, wherein the connector member is electrically insulated, and an interface member (20) arranged to support a replacement light source to replace a fluorescent lamp in the luminaire. The invention further relates to a system comprising at least two such adaptors (1) and a bridge member (30) for supporting a replacement light source.

A lighting system attaches to a sectional door. The sectional door has a plurality of hinge-connected panels which roll along left and right tracks which are connected to a structure. Each panel has an inside surface. The sectional door is positionable to a closed position and to an open position. The lighting system includes a light which connects to the inside surface of a panel of the sectional door. A movable electric contactor connects to a panel of the sectional door, and a fixed electric contactor connects to the structure. A holder carries the fixed contactor, the holder is shaped and dimensioned to removably connect to either the left track or to the right track. In the open position of the sectional door the movable electric contactor is configured to contact the fixed electric contactor and energize the light.

A portable light bulb system includes a bulb that is removably coupled to a mounting bracket that is affixed to a support surface. The bulb includes an internal battery power supply and a LED light engine. The system also includes a wireless module communication device configured to wirelessly communicate with the bulb. The portable light bulb system is capable of being configured in a first use position where operation of the bulb provides illumination to a region proximate the mounting bracket affixed to the support surface. An operator can disconnect the bulb from the bracket and bring the bulb to a second use position where operation of the bulb provides illumination to the second region. The operator can then return the bulb to the bracket at the first use position, or bring the bulb to yet another location for illumination.

An LED tube lamp is disclosed. An installation detection circuit is configured in the LED tube lamp configured to receive an external driving signal. The installation detection circuit is configured to detect during one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal. The installation detection circuit includes a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit. The installation detection circuit is further configured to: when it is detected during one or more pulse signals that the LED tube lamp is not properly installed on the lamp socket, control the switch circuit to remain in an off state to cause a power loop of the LED tube lamp to be open; and when it is detected during one or more pulse signals that the LED tube lamp is properly installed on the lamp socket, control the switch circuit to remain in a conducting state to cause the power loop of the LED tube lamp to maintain a conducting state.

Semiconductor lamp (1) having a straight, translucent tube (2) whose open end faces (3) can be closed by means of respective end caps (4), which end caps (4) are plug-connected to the tube (2), a circuit board (16) which is equipped with at least one semiconductor light source (17) is installed in the tube (2) and is in contact with at least one of the end caps (4), wherein both end caps (4) are mechanically connected to one another by means of a connection element (18) running in the tube (2), at least one of the end caps (4) is arranged such that it can be displaced longitudinally with play (d) with respect to the tube (2; 54) and thermal expansion of the connection element (18) in a longitudinal direction (L) of the tube (2) is smaller than thermal expansion of the tube (2) and wherein the connection element (18) is snap-fitted to at least one of the end caps (4). The invention can for example be used for retrofit or replacement lamps for conventional elongate lamps, e.g. fluorescent lamps and tube lamps.

An LED-based light includes one or more LEDs, a sensor arranged to detect a brightness level in an area resulting from the combination of light emitted by the LEDs with light from at least one ambient light source other than the LEDs, and operable to output a signal corresponding to the detected brightness level, a controller operable to regulate an amount of power provided to the LEDs in response to the signal, a light transmitting housing for the LEDs, the sensor and the controller and a connector shaped for connection with a light socket disposed at an end of the housing.

An LED-based light includes one or more LEDs, a sensor arranged to detect a brightness level in an area resulting from the combination of light emitted by the LEDs with light from at least one ambient light source other than the LEDs, and operable to output a signal corresponding to the detected brightness level, a controller operable to regulate an amount of power provided to the LEDs in response to the signal, a light transmitting housing for the LEDs, the sensor and the controller and a connector shaped for connection with a light socket disposed at an end of the housing.

An end cap (104) for a tubular light source (102), the tubular light source (102) being configured to be arranged in a lighting fixture (106) comprising at least one socket (108), wherein the end cap (104) comprises a housing (202), two connector pins (112) at least partly arranged on an outside of the housing (202) and adapted to fit in the socket, and a switch assembly comprising a switch element (110) arranged in between the two connector pins (112) and at least partly protruding from an opening in the housing (202), wherein a first side of the switch element (110) is adapted to fit into a slot in a socket (108) and wherein the switch assembly is configured to form a conductive path between the socket (108) and the tubular light source (102) through an axial rotation of the switch element (110) in relation to the housing (202) as the tubular light source (102) is rotatably mounted in the fixture (106).